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Sensitivity and specificity

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439: 427: 512:, test sensitivity is the ability of a test to correctly identify those with the disease (true positive rate), whereas test specificity is the ability of the test to correctly identify those without the disease (true negative rate). If 100 patients known to have a disease were tested, and 43 test positive, then the test has 43% sensitivity. If 100 with no disease are tested and 96 return a completely negative result, then the test has 96% specificity. Sensitivity and specificity are prevalence-independent test characteristics, as their values are intrinsic to the test and do not depend on the disease 99: 409: 33: 420:
maximum value of 100% at line A, and the specificity decreases. The sensitivity at line A is 100% because at that point there are zero false negatives, meaning that all the negative test results are true negatives. When moving to the right, the opposite applies, the specificity increases until it reaches the B line and becomes 100% and the sensitivity decreases. The specificity at line B is 100% because the number of false positives is zero at that line, meaning all the positive test results are true positives.
253: 379: 477: 465: 2563: 164: 2577: 492:). This situation is also illustrated in the previous figure where the dotted line is at position A (the left-hand side is predicted as negative by the model, the right-hand side is predicted as positive by the model). When the dotted line, test cut-off line, is at position A, the test correctly predicts all the population of the true positive class, but it will fail to correctly identify the data point from the true negative class. 290: 2591: 248:{\displaystyle {\begin{aligned}{\text{sensitivity}}&={\frac {\text{number of true positives}}{{\text{number of true positives}}+{\text{number of false negatives}}}}\\&={\frac {\text{number of true positives}}{\text{total number of sick individuals in population}}}\\&={\text{probability of a positive test given that the patient has the disease}}\end{aligned}}} 374:{\displaystyle {\begin{aligned}{\text{specificity}}&={\frac {\text{number of true negatives}}{{\text{number of true negatives}}+{\text{number of false positives}}}}\\&={\frac {\text{number of true negatives}}{\text{total number of well individuals in population}}}\\&={\text{probability of a negative test given that the patient is well}}\end{aligned}}} 450:
tests below the cut off point and are considered negative (the blue dots indicate the False Negatives (FN), the white dots True Negatives (TN)). The right-hand side of the line shows the data points that tests above the cut off point and are considered positive (red dots indicate False Positives (FP)). Each side contains 40 data points.
2434:. Unlike the Specificity vs Sensitivity tradeoff, these measures are both independent of the number of true negatives, which is generally unknown and much larger than the actual numbers of relevant and retrieved documents. This assumption of very large numbers of true negatives versus positives is rare in other applications. 263:
the presence of the disease in a patient. However, a positive result in a test with high sensitivity is not necessarily useful for "ruling in" disease. Suppose a 'bogus' test kit is designed to always give a positive reading. When used on diseased patients, all patients test positive, giving the test
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The calculation of sensitivity does not take into account indeterminate test results. If a test cannot be repeated, indeterminate samples either should be excluded from the analysis (the number of exclusions should be stated when quoting sensitivity) or can be treated as false negatives (which gives
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A negative result in a test with high sensitivity can be useful for "ruling out" disease, since it rarely misdiagnoses those who do have the disease. A test with 100% sensitivity will recognize all patients with the disease by testing positive. In this case, a negative test result would definitively
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mathematically describe the accuracy of a test that reports the presence or absence of a medical condition. If individuals who have the condition are considered "positive" and those who do not are considered "negative", then sensitivity is a measure of how well a test can identify true positives and
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This hypothetical screening test (fecal occult blood test) correctly identified two-thirds (66.7%) of patients with colorectal cancer. Unfortunately, factoring in prevalence rates reveals that this hypothetical test has a high false positive rate, and it does not reliably identify colorectal cancer
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The above graphical illustration is meant to show the relationship between sensitivity and specificity. The black, dotted line in the center of the graph is where the sensitivity and specificity are the same. As one moves to the left of the black dotted line, the sensitivity increases, reaching its
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A test which reliably excludes individuals who do not have the condition, resulting in a high number of true negatives and low number of false positives, will have a high specificity. This is especially important when people who are identified as having a condition may be subjected to more testing,
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as defined in biostatistics. The pair of thus defined specificity (as positive predictive value) and sensitivity (true positive rate) represent major parameters characterizing the accuracy of gene prediction algorithms. Conversely, the term specificity in a sense of true negative rate would have
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Similar to the previously explained figure, the red dot indicates the patient with the medical condition. However, in this case, the green background indicates that the test predicts that all patients are free of the medical condition. The number of data point that is true negative is then 26, and
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The red dot indicates the patient with the medical condition. The red background indicates the area where the test predicts the data point to be positive. The true positive in this figure is 6, and false negatives of 0 (because all positive condition is correctly predicted as positive). Therefore,
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the presence of the disease. However, a negative result from a test with high specificity is not necessarily useful for "ruling out" disease. For example, a test that always returns a negative test result will have a specificity of 100% because specificity does not consider false negatives. A test
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After getting the numbers of true positives, false positives, true negatives, and false negatives, the sensitivity and specificity for the test can be calculated. If it turns out that the sensitivity is high then any person who has the disease is likely to be classified as positive by the test. On
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Imagine a study evaluating a test that screens people for a disease. Each person taking the test either has or does not have the disease. The test outcome can be positive (classifying the person as having the disease) or negative (classifying the person as not having the disease). The test results
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The middle solid line in both figures above that show the level of sensitivity and specificity is the test cutoff point. As previously described, moving this line results in a trade-off between the level of sensitivity and specificity. The left-hand side of this line contains the data points that
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A positive result in a test with high specificity can be useful for "ruling in" disease, since the test rarely gives positive results in healthy patients. A test with 100% specificity will recognize all patients without the disease by testing negative, so a positive test result would definitively
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On the other hand, this hypothetical test demonstrates very accurate detection of cancer-free individuals (NPV ≈ 99.5%). Therefore, when used for routine colorectal cancer screening with asymptomatic adults, a negative result supplies important data for the patient and doctor, such as
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For the figure that shows low sensitivity and high specificity, there are 8 FN and 3 FP. Using the same method as the previous figure, we get TP = 40 - 3 = 37. The number of sick people is 37 + 8 = 45, which gives a sensitivity of 37 / 45 = 82.2 %. There are 40 - 8 = 32 TN. The specificity
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For the figure that shows high sensitivity and low specificity, there are 3 FN and 8 FP. Using the fact that positive results = true positives (TP) + FP, we get TP = positive results - FP, or TP = 40 - 8 = 32. The number of sick people in the data set is equal to TP + FN, or 32 + 3 = 35. The
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A test which reliably detects the presence of a condition, resulting in a high number of true positives and low number of false negatives, will have a high sensitivity. This is especially important when the consequence of failing to treat the condition is serious and/or the treatment is very
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Consider the example of a medical test for diagnosing a condition. Sensitivity (sometimes also named the detection rate in a clinical setting) refers to the test's ability to correctly detect ill patients out of those who do have the condition. Mathematically, this can be expressed as:
585:= specificity + sensitivity − 1 = TPR − FPR, the magnitude of which gives the probability of an informed decision between the two classes (> 0 represents appropriate use of information, 0 represents chance-level performance, < 0 represents perverse use of information). 36:
Sensitivity and specificity - The left half of the image with the solid dots represents individuals who have the condition, while the right half of the image with the hollow dots represents individuals who do not have the condition. The circle represents all individuals who tested
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Sensitivity and specificity values alone may be highly misleading. The 'worst-case' sensitivity or specificity must be calculated in order to avoid reliance on experiments with few results. For example, a particular test may easily show 100% sensitivity if tested against the
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It is often claimed that a highly specific test is effective at ruling in a disease when positive, while a highly sensitive test is deemed effective at ruling out a disease when negative. This has led to the widely used mnemonics SPPIN and SNNOUT, according to which a highly
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100% sensitivity. However, sensitivity does not take into account false positives. The bogus test also returns positive on all healthy patients, giving it a false positive rate of 100%, rendering it useless for detecting or "ruling in" the disease.
117:), and "analytical specificity" is defined as the ability of an assay to measure one particular organism or substance, rather than others. However, this article deals with diagnostic sensitivity and specificity as defined at top. 2376: 295: 169: 144:
the other hand, if the specificity is high, any person who does not have the disease is likely to be classified as negative by the test. An NIH web site has a discussion of how these ratios are calculated.
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Consider the example of a medical test for diagnosing a disease. Specificity refers to the test's ability to correctly reject healthy patients without a condition. Mathematically, this can be written as:
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disease (SN-N-OUT). Both rules of thumb are, however, inferentially misleading, as the diagnostic power of any test is determined by the prevalence of the condition being tested, the test's sensitivity
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sensitivity is therefore 32 / 35 = 91.4%. Using the same method, we get TN = 40 - 3 = 37, and the number of healthy people 37 + 8 = 45, which results in a specificity of 37 / 45 = 82.2 %.
3631:"Diagnostic test online calculator calculates sensitivity, specificity, likelihood ratios and predictive values from a 2x2 table – calculator of confidence intervals for predictive parameters" 524:, but not sensitivity or specificity, are values influenced by the prevalence of disease in the population that is being tested. These concepts are illustrated graphically in this applet 2451: 4533: 2400:
four times, but a single additional test against the gold standard that gave a poor result would imply a sensitivity of only 80%. A common way to do this is to state the
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for sensitivity and specificity can be calculated, giving the range of values within which the correct value lies at a given confidence level (e.g., 95%).
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A diagnostic test with sensitivity 67% and specificity 91% is applied to 2030 people to look for a disorder with a population prevalence of 1.48%
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its specificity. The SNNOUT mnemonic has some validity when the prevalence of the condition in question is extremely low in the tested sample.
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Boyko EJ (Apr–Jun 1994). "Ruling out or ruling in disease with the most sensitive or specific diagnostic test: short cut or wrong turn?".
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The relationship between sensitivity, specificity, and similar terms can be understood using the following table. Consider a group with
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Lin JS, Piper MA, Perdue LA, Rutter CM, Webber EM, O'Connor E, Smith N, Whitlock EP (21 June 2016). "Screening for Colorectal Cancer".
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Yerushalmy J (1947). "Statistical problems in assessing methods of medical diagnosis with special reference to x-ray techniques".
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ruling out cancer as the cause of gastrointestinal symptoms or reassuring patients worried about developing colorectal cancer.
3403:"The advantages of the Matthews correlation coefficient (MCC) over F1 score and accuracy in binary classification evaluation" 3359: 3242: 4461: 4377: 835:{\displaystyle d^{\prime }={\frac {\mu _{S}-\mu _{N}}{\sqrt {{\frac {1}{2}}\left(\sigma _{S}^{2}+\sigma _{N}^{2}\right)}}}} 2526:
in that context has a more general usage that is not applicable in the present context. A sensitive test will have fewer
889: 4953: 4242: 17: 4212: 71:(true negative rate) is the probability of a negative test result, conditioned on the individual truly being negative. 4667: 3988: 2635: 2052: 1284: 574: 528:
which show the positive and negative predictive values as a function of the prevalence, sensitivity and specificity.
476: 464: 4499: 2907: 2231: 1600: 2224: 4923: 4889: 4750: 1392: 4306: 3184:"A basal ganglia pathway drives selective auditory responses in songbird dopaminergic neurons via disinhibition" 2748:"[Sensitivity and specificity revisited: significance of the terms in analytic and diagnostic language]" 2504:{\displaystyle F=2\times {\frac {{\text{precision}}\times {\text{recall}}}{{\text{precision}}+{\text{recall}}}}} 106:
The terms "sensitivity" and "specificity" were introduced by American biostatistician Jacob Yerushalmy in 1947.
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like that would return negative for patients with the disease, making it useless for "ruling out" the disease.
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If the true status of the condition cannot be known, sensitivity and specificity can be defined relative to a "
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Negative likelihood ratio = (1 − sensitivity) / specificity ≈ (1 − 0.67) / 0.91 ≈ 0.37
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Type I error: A test result which wrongly indicates that a particular condition or attribute is present
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Type II error: A test result which wrongly indicates that a particular condition or attribute is absent
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can be used as a single measure of performance of the test for the positive class. The F-score is the
500:). Therefore, sensitivity or specificity alone cannot be used to measure the performance of the test. 4609: 4604: 4280: 3321:"Evaluation: From Precision, Recall and F-Measure to ROC, Informedness, Markedness & Correlation" 3161:"Evaluation: From Precision, Recall and F-Measure to ROC, Informedness, Markedness & Correlation" 2527: 2169: 2116: 2083: 2048: 1584: 1445: 1365: 1340: 1278: 521: 517: 3676: 3125: 4938: 4705: 4218: 4166: 4046: 2640: 4928: 4796: 4700: 4695: 4264: 4134: 4112: 4081: 4056: 4039: 2954: 2880: 2651: 2645: 1719: 978: 697: 643: 62: 4933: 4637: 4415: 4252: 4173: 3671: 3375:
Brooks H, Brown B, Ebert B, Ferro C, Jolliffe I, Koh TY, Roebber P, Stephenson D (2015-01-26).
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Yandell M, Ence D (April 2012). "A beginner's guide to eukaryotic genome annotation".
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A test result that correctly indicates the presence of a condition or characteristic
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for each subject may or may not match the subject's actual status. In that setting:
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A test result that correctly indicates the absence of a condition or characteristic
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negative instances of some condition. The four outcomes can be formulated in a 2×2
915: 606: 32: 3975: 3630: 3376: 525: 4835: 4778: 4657: 4425: 4248: 4203: 3278: 3259: 3232: 3134: 2596: 2543: 940:, as well as derivations of several metrics using the four outcomes, as follows: 114: 4451: 4372: 4324: 4117: 4029: 3960: 3470: 3024: 2981: 2582: 2568: 2247:= sensitivity / (1 − specificity) ≈ 0.67 / (1 − 0.91) ≈ 7.4 1148: 1049: 3884: 3521: 3504: 3419: 3351: 2848: 4917: 4720: 4430: 4397: 4392: 3927: 3652: 3557: 3071: 2442: 1160: 1112: 1037: 899: 272: 3912:"Understanding sensitivity and specificity with the right side of the brain" 2795: 2390: 4272: 4156: 3945: 3841: 3806: 3787: 3755: 3685: 3616: 3597: 3565: 3549: 3489: 3438: 3217: 3089: 3056:"Ruling a diagnosis in or out with "SpPIn" and "SnNOut": a note of caution" 2814: 2724: 1842: 1186: 582: 394: 3902: 3693: 3054:
Pewsner D, Battaglia M, Minder C, Marx A, Bucher HC, Egger M (July 2004).
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the number of false positives is 0. This result in 100% specificity (from
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the worst-case value for sensitivity and may therefore underestimate it).
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in the overall population of asymptomatic people (PPV = 10%).
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specificity is a measure of how well a test can identify true negatives:
2779:"Understanding and using sensitivity, specificity and predictive values" 2671:
There are advantages and disadvantages for all medical screening tests.
4814: 4725: 4710: 4268: 4260: 4226: 4188: 4095: 2716: 2033: 1473: 1253: 513: 46: 2562: 4632: 4328: 4316: 2371:{\displaystyle PT={\frac {{\sqrt {TPR(-TNR+1)}}+TNR-1}{(TPR+TNR-1)}}} 1849: 602: 238:
probability of a positive test given that the patient has the disease
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little, if any, application in the genome analysis research area.
4740: 4627: 4367: 3377:"WWRP/WGNE Joint Working Group on Forecast Verification Research" 2957:. Emory University Medical School Evidence Based Medicine course. 2777:
Parikh R, Mathai A, Parikh S, Chandra Sekhar G, Thomas R (2008).
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The tradeoff between specificity and sensitivity is explored in
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probability of a negative test given that the patient is well
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False negative: Sick people incorrectly identified as healthy
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True negative: Healthy people correctly identified as healthy
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False positive: Healthy people incorrectly identified as sick
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Bénard F, Barkun AN, Martel M, Renteln Dv (7 January 2018).
2227:= 1 − specificity = FP / (FP + TN) = 180 / (180 + 1820) = 9% 4819: 4791: 4786: 4763: 3722:"Gene finding in novel genomes by self-training algorithm" 3053: 3578: 3381:
Collaboration for Australian Weather and Climate Research
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Estimation of errors in quoted sensitivity or specificity
2234:= 1 − sensitivity = FN / (TP + FN) = 10 / (20 + 10) ≈ 33% 906:
indicates that the signal can be more readily detected.
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as a trade off between TPR and FPR (that is, recall and
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A graphical illustration of sensitivity and specificity
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True positive: Sick people correctly identified as sick
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Fawcett T (2006). "An Introduction to ROC Analysis".
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Vassar College's Sensitivity/Specificity Calculator
3451: 1073:probability of detection, hit rate, 613:signal and noise with mean and standard deviations 3869:"Diagnostic tests. 1: Sensitivity and specificity" 3299: 2968:Baron JA (Apr–Jun 1994). "Too bad it isn't true". 2833:"Diagnostic tests. 1: Sensitivity and specificity" 2745: 2503: 2404:, often calculated using a Wilson score interval. 2370: 834: 713: 686: 659: 632: 373: 247: 79:" which is assumed correct. For all testing, both 3230: 2533: 1625:Threat score (TS), critical success index (CSI), 120: 4915: 3452:Chicco D, Toetsch N, Jurman G (February 2021). 3231:Macmillan NA, Creelman CD (15 September 2004). 348:total number of well individuals in population 222:total number of sick individuals in population 27:Statistical measure of a binary classification 4527: 3996: 3154: 3152: 1727: 1688:the number of real negative cases in the data 1661:the number of real positive cases in the data 393:A test with a higher specificity has a lower 271:A test with a higher sensitivity has a lower 3400: 3175: 3047: 3866: 3819: 3813: 3647: 3096: 3004: 2932:. Michigan State University. Archived from 2883:. Centre for Evidence Based Medicine (CEBM) 2830: 1177:probability of false alarm, 849:can be also found from measurements of the 4534: 4520: 4003: 3989: 3502: 3342:Ting KM (2011). Sammut C, Webb GI (eds.). 3181: 3149: 2961: 2694: 2518:, the sensitivity of a test is called the 2422:, the positive predictive value is called 1734: 1720: 482:A test result with 100 percent specificity 470:A test result with 100 percent sensitivity 3976:Bayesian clinical diagnostic model applet 3935: 3892: 3796: 3786: 3745: 3675: 3606: 3596: 3520: 3479: 3469: 3428: 3418: 3207: 3124: 3079: 2856: 2804: 2794: 400: 4295:Preventable fraction among the unexposed 4291:Attributable fraction for the population 3719: 3325:Journal of Machine Learning Technologies 3165:Journal of Machine Learning Technologies 458:therefore comes out to 32 / 35 = 91.4%. 97: 91:effective and has minimal side effects. 31: 4299:Preventable fraction for the population 4287:Attributable fraction among the exposed 3257: 3102: 2739: 2402:binomial proportion confidence interval 109:There are different definitions within 65:on the individual truly being positive. 14: 4916: 3318: 3158: 2901: 581:). Giving them equal weight optimizes 4515: 3984: 3909: 3300:Provost F, Tom Fawcett (2013-08-01). 3010: 2967: 2826: 2824: 4462:Correlation does not imply causation 4378:Animal testing on non-human primates 3768: 3341: 2414:Terminology in information retrieval 588: 444:Low sensitivity and high specificity 432:High sensitivity and low specificity 3505:"Classification assessment methods" 3401:Chicco D, Jurman G (January 2020). 3383:. World Meteorological Organisation 3182:Gale SD, Perkel DJ (January 2010). 2873: 909: 24: 3859: 3641: 2821: 740: 526:Bayesian clinical diagnostic model 25: 4965: 3954: 3867:Altman DG, Bland JM (June 1994). 3585:World Journal of Gastroenterology 3509:Applied Computing and Informatics 3260:"An Introduction to ROC Analysis" 2831:Altman DG, Bland JM (June 1994). 2636:Receiver operating characteristic 531: 3344:Encyclopedia of machine learning 3234:Detection Theory: A User's Guide 2589: 2575: 2561: 1601:Matthews correlation coefficient 890:cumulative Gaussian distribution 549:disease (SP-P-IN), and a highly 503: 475: 463: 437: 425: 407: 4890:Pearson correlation coefficient 3771:"Gene finding in novel genomes" 3762: 3707: 3623: 3572: 3529: 3496: 3445: 3394: 3368: 3335: 3312: 3293: 3251: 3237:. Psychology Press. p. 7. 2904:"Diagnostic Reasoning I and II" 2783:Indian Journal of Ophthalmology 2665: 2522:of the test, although the word 2514:In the traditional language of 1874:(2030 × 1.48% × 67%) 1700: 1691: 1682: 1673: 1664: 1655: 942: 516:in the population of interest. 95:expense, stigma, anxiety, etc. 4345:Pre- and post-test probability 4067:Patient and public involvement 3971:MedCalc Free Online Calculator 3200:10.1523/JNEUROSCI.3585-09.2010 2947: 2922: 2895: 2770: 2688: 2534:Terminology in genome analysis 2516:statistical hypothesis testing 2362: 2332: 2307: 2286: 601:(pronounced "dee-prime") is a 488:the sensitivity is 100% (from 278: 152: 121:Application to screening study 13: 1: 4829:Deep Learning Related Metrics 2955:"Sensitivity and Specificity" 2682: 2626:Hypothesis tests for accuracy 147: 4472:Sex as a biological variable 3664:Journal of Molecular Biology 3279:10.1016/j.patrec.2005.10.010 3135:10.1016/j.patrec.2005.10.010 2673:Clinical practice guidelines 2616:Discrimination (information) 2428:, and sensitivity is called 7: 4673:Sensitivity and specificity 4436:Intention-to-treat analysis 4408:Analysis of clinical trials 4337:Specificity and sensitivity 4091:Randomized controlled trial 3910:Loong TW (September 2003). 3267:Pattern Recognition Letters 3188:The Journal of Neuroscience 3105:Pattern Recognition Letters 2746:Saah AJ, Hoover DR (1998). 2611:Cumulative accuracy profile 2554: 2538:Similarly to the domain of 2140:= (10 / 30) / (1820 / 2000) 1155:false alarm, overestimation 983:bookmaker informedness (BM) 857:rate. It is calculated as: 714:{\displaystyle \sigma _{N}} 660:{\displaystyle \sigma _{S}} 102:Sensitivity and specificity 51:sensitivity and specificity 10: 4970: 4954:Statistical classification 3503:Tharwat A. (August 2018). 3471:10.1186/s13040-021-00244-z 3025:10.1177/0272989X9401400210 2982:10.1177/0272989X9401400202 2930:"Evidence-Based Diagnosis" 2542:, in the research area of 2230:False negative rate (β) = 2223:False positive rate (α) = 2107:= (20 / 30) / (180 / 2000) 1995:probability of false alarm 1886:(2030 × 1.48% × 913: 888:∈ , is the inverse of the 522:negative predictive values 111:laboratory quality control 4898: 4872: 4849: 4828: 4805: 4777: 4749: 4686: 4618: 4550: 4480: 4445:Interpretation of results 4444: 4406: 4355: 4305: 4279: 4241: 4211: 4202: 4178:Nested case–control study 4128: 4075: 4022: 3885:10.1136/bmj.308.6943.1552 3522:10.1016/j.aci.2018.08.003 3420:10.1186/s12864-019-6413-7 3352:10.1007/978-0-387-30164-8 2849:10.1136/bmj.308.6943.1552 2648:, also called proficiency 2445:of precision and recall: 2184: 2170:Negative predictive value 2117:Negative likelihood ratio 2084:Positive likelihood ratio 2049:Positive predictive value 2030: 1838: 1763: 1755: 1753: 1624: 1446:Negative predictive value 1366:Negative likelihood ratio 1341:Positive likelihood ratio 1279:Positive predictive value 1250: 1023: 954: 949: 945: 326:number of false positives 200:number of false negatives 4047:Academic clinical trials 3928:10.1136/bmj.327.7417.716 3822:Nature Reviews. Genetics 3072:10.1136/bmj.329.7459.209 2658: 2641:Statistical significance 687:{\displaystyle \mu _{N}} 633:{\displaystyle \mu _{S}} 345:number of true negatives 318:number of true negatives 313:number of true negatives 219:number of true positives 192:number of true positives 187:number of true positives 4701:Calinski-Harabasz index 4265:Relative risk reduction 4113:Adaptive clinical trial 4057:Evidence-based medicine 4040:Adaptive clinical trial 3013:Medical Decision Making 2970:Medical Decision Making 2796:10.4103/0301-4738.37595 2646:Uncertainty coefficient 1818:precision × recall 1516:Balanced accuracy (BA) 1113:type II error 974:Predicted negative (PN) 969:Predicted positive (PP) 924:positive instances and 4924:Accuracy and precision 4253:Number needed to treat 3788:10.1186/1471-2105-5-59 3726:Nucleic Acids Research 3686:10.1006/jmbi.1997.0951 3598:10.3748/wjg.v24.i1.124 3550:10.1001/jama.2016.3332 2621:False positive paradox 2505: 2372: 1187:type I error 836: 715: 688: 661: 634: 401:Graphical illustration 375: 249: 103: 38: 4864:Intra-list Similarity 4257:Number needed to harm 4144:Cross-sectional study 4096:Scientific experiment 4052:Clinical study design 2752:Ann Dermatol Venereol 2697:Public Health Reports 2540:information retrieval 2506: 2420:information retrieval 2373: 2240:= sensitivity = 1 − β 2186:Diagnostic odds ratio 1919:(FNR), miss rate 1619:FNR × FPR × FOR × FDR 1610:TPR × TNR × PPV × NPV 1585:Fowlkes–Mallows index 1056:miss, underestimation 837: 716: 689: 662: 635: 376: 250: 101: 35: 4223:Cumulative incidence 2652:Youden's J statistic 2631:Precision and recall 2548:precision and recall 2452: 2408:Confidence intervals 2260: 2254:Prevalence threshold 2218:Related calculations 2176:= 1820 / (10 + 1820) 2154:False discovery rate 1979:(100% − 1.48%) 1959:(100% − 1.48%) 1943:(100% − 1.48%) 1862:(2030 × 1.48%) 1796:= (20 + 1820) / 2030 1418:False discovery rate 992:Prevalence threshold 902:statistic. A higher 732: 698: 671: 644: 617: 611:normally distributed 291: 165: 4130:Observational study 4062:Real world evidence 4016:experimental design 3720:Lomsadze A (2005). 3306:O'Reilly Media, Inc 3117:2006PaReL..27..861F 2068:False omission rate 1985:False positive rate 1917:False negative rate 1760:screen test outcome 1313:False omission rate 1172:False positive rate 1103:False negative rate 951:Predicted condition 872:(false alarm rate), 823: 805: 18:Sensitivity (tests) 4949:Statistical ratios 4944:Medical statistics 4885:Euclidean distance 4851:Recommender system 4731:Similarity measure 4545:evaluation metrics 4416:Risk–benefit ratio 4383:First-in-man study 4333:Case fatality rate 4174:Case–control study 4148:Longitudinal study 3775:BMC Bioinformatics 3738:10.1093/nar/gki937 3319:Powers DM (2011). 3258:Fawcett T (2006). 3159:Powers DM (2011). 2881:"SpPin and SnNout" 2501: 2368: 2160:= 180 / (20 + 180) 2074:= 10 / (10 + 1820) 2014:true negative rate 1963:(100% − 91%) 1894:True positive rate 1888:(100% − 67%) 1824:precision + recall 1794:= (TP + TN) / pop. 1758:Fecal occult blood 1223:(SPC), selectivity 1215:True negative rate 1061:True positive rate 832: 809: 791: 711: 684: 657: 630: 557:sitive test, when 541:ecific test, when 371: 369: 245: 243: 104: 77:gold standard test 39: 4911: 4910: 4880:Cosine similarity 4716:Hopkins statistic 4509: 4508: 4457:Survivorship bias 4421:Systematic review 4388:Multicenter trial 4351: 4350: 4341:Likelihood-ratios 4313:Clinical endpoint 4281:Population impact 4235:Period prevalence 4012:Clinical research 3732:(20): 6494–6906. 3544:(23): 2576–2594. 3361:978-0-387-30164-8 3244:978-1-4106-1114-7 2520:statistical power 2499: 2496: 2488: 2481: 2473: 2366: 2310: 2215: 2214: 2058:= 20 / (20 + 180) 1651: 1650: 1167:correct rejection 931:contingency table 830: 829: 784: 595:sensitivity index 589:Sensitivity index 510:medical diagnosis 365: 350: 349: 346: 330: 327: 319: 314: 301: 239: 224: 223: 220: 204: 201: 193: 188: 175: 16:(Redirected from 4961: 4903:Confusion matrix 4678:Logarithmic Loss 4543:Machine learning 4536: 4529: 4522: 4513: 4512: 4356:Trial/test types 4231:Point prevalence 4209: 4208: 4152:Ecological study 4135:EBM II-2 to II-3 4106:Open-label trial 4101:Blind experiment 4077:Controlled study 4005: 3998: 3991: 3982: 3981: 3949: 3939: 3906: 3896: 3854: 3853: 3817: 3811: 3810: 3800: 3790: 3766: 3760: 3759: 3749: 3718: 3711: 3705: 3704: 3702: 3696:. Archived from 3679: 3661: 3645: 3639: 3638: 3627: 3621: 3620: 3610: 3600: 3576: 3570: 3569: 3533: 3527: 3526: 3524: 3500: 3494: 3493: 3483: 3473: 3449: 3443: 3442: 3432: 3422: 3398: 3392: 3391: 3389: 3388: 3372: 3366: 3365: 3339: 3333: 3332: 3316: 3310: 3309: 3297: 3291: 3290: 3264: 3255: 3249: 3248: 3228: 3222: 3221: 3211: 3179: 3173: 3172: 3156: 3147: 3146: 3128: 3100: 3094: 3093: 3083: 3066:(7459): 209–13. 3051: 3045: 3044: 3008: 3002: 3001: 2965: 2959: 2958: 2951: 2945: 2944: 2942: 2941: 2926: 2920: 2919: 2917: 2915: 2910:on 1 August 2011 2906:. Archived from 2899: 2893: 2892: 2890: 2888: 2877: 2871: 2870: 2860: 2828: 2819: 2818: 2808: 2798: 2774: 2768: 2767: 2743: 2737: 2736: 2692: 2676: 2669: 2599: 2594: 2593: 2592: 2585: 2580: 2579: 2571: 2566: 2565: 2510: 2508: 2507: 2502: 2500: 2498: 2497: 2494: 2489: 2486: 2483: 2482: 2479: 2474: 2471: 2468: 2378:≈ 0.2686 ≈ 26.9% 2377: 2375: 2374: 2369: 2367: 2365: 2330: 2311: 2276: 2273: 2245:likelihood ratio 2205: 2203: 2202: 2199: 2196: 2174:= TN / (FN + TN) 2158:= FP / (TP + FP) 2138: 2136: 2135: 2132: 2129: 2121: 2105: 2103: 2102: 2099: 2096: 2088: 2072:= FN / (FN + TN) 2056:= TP / (TP + FP) 1996: 1991: 1980: 1973: 1964: 1960: 1953: 1944: 1935:Actual condition 1889: 1882: 1870: 1856:Actual condition 1828: 1826: 1825: 1822: 1819: 1771:Total population 1751: 1750: 1744:A worked example 1736: 1729: 1722: 1707: 1704: 1698: 1695: 1689: 1686: 1680: 1677: 1671: 1668: 1662: 1659: 1647: 1646: 1644: 1643: 1640: 1637: 1622: 1621: 1620: 1613: 1612: 1611: 1597: 1596: 1595: 1581: 1580: 1578: 1577: 1574: 1571: 1563: 1562: 1560: 1559: 1556: 1553: 1535: 1534: 1532: 1531: 1528: 1525: 1511: 1510: 1508: 1507: 1504: 1501: 1490: 1483: 1479: 1478:deltaP (Δp) 1470: 1467: 1466: 1464: 1463: 1460: 1457: 1442: 1439: 1438: 1436: 1435: 1432: 1429: 1414: 1413: 1411: 1410: 1407: 1404: 1387: 1386: 1384: 1383: 1380: 1377: 1362: 1361: 1359: 1358: 1355: 1352: 1337: 1334: 1333: 1331: 1330: 1327: 1324: 1309: 1306: 1305: 1303: 1302: 1299: 1296: 1287: 1282: 1274: 1273: 1271: 1270: 1267: 1264: 1246: 1243: 1242: 1240: 1239: 1236: 1233: 1224: 1211: 1208: 1207: 1205: 1204: 1201: 1198: 1189: 1183: 1181: 1168: 1156: 1137: 1134: 1133: 1131: 1130: 1127: 1124: 1115: 1109: 1099: 1096: 1095: 1093: 1092: 1089: 1086: 1077: 1057: 1045: 1026:Actual condition 1019: 1018: 1016: 1015: 1012: 1009: 1007: 1006: 988: 984: 965: 960:Total population 943: 937:confusion matrix 916:Confusion matrix 910:Confusion matrix 841: 839: 838: 833: 831: 828: 824: 822: 817: 804: 799: 785: 777: 775: 774: 773: 772: 760: 759: 749: 744: 743: 721:, respectively, 720: 718: 717: 712: 710: 709: 693: 691: 690: 685: 683: 682: 666: 664: 663: 658: 656: 655: 639: 637: 636: 631: 629: 628: 607:detection theory 499: 491: 479: 467: 441: 429: 411: 380: 378: 377: 372: 370: 366: 363: 355: 351: 347: 344: 343: 335: 331: 329: 328: 325: 320: 317: 312: 311: 302: 299: 254: 252: 251: 246: 244: 240: 237: 229: 225: 221: 218: 217: 209: 205: 203: 202: 199: 194: 191: 186: 185: 176: 173: 21: 4969: 4968: 4964: 4963: 4962: 4960: 4959: 4958: 4939:Cheminformatics 4914: 4913: 4912: 4907: 4894: 4868: 4845: 4836:Inception score 4824: 4801: 4779:Computer Vision 4773: 4745: 4682: 4614: 4546: 4540: 4510: 4505: 4476: 4440: 4402: 4347: 4301: 4275: 4249:Risk difference 4237: 4198: 4132: 4124: 4079: 4071: 4035:Trial protocols 4018: 4009: 3957: 3952: 3922:(7417): 716–9. 3862: 3860:Further reading 3857: 3834:10.1038/nrg3174 3818: 3814: 3769:Korf I (2004). 3767: 3763: 3713: 3712: 3708: 3700: 3677:10.1.1.115.3107 3659: 3646: 3642: 3629: 3628: 3624: 3577: 3573: 3534: 3530: 3501: 3497: 3450: 3446: 3413:(1): 6-1–6-13. 3399: 3395: 3386: 3384: 3373: 3369: 3362: 3340: 3336: 3317: 3313: 3298: 3294: 3262: 3256: 3252: 3245: 3229: 3225: 3180: 3176: 3157: 3150: 3126:10.1.1.646.2144 3101: 3097: 3052: 3048: 3009: 3005: 2966: 2962: 2953: 2952: 2948: 2939: 2937: 2928: 2927: 2923: 2913: 2911: 2900: 2896: 2886: 2884: 2879: 2878: 2874: 2829: 2822: 2775: 2771: 2744: 2740: 2709:10.2307/4586294 2693: 2689: 2685: 2680: 2679: 2670: 2666: 2661: 2656: 2597:Medicine portal 2595: 2590: 2588: 2581: 2574: 2567: 2560: 2557: 2544:gene prediction 2536: 2493: 2485: 2484: 2478: 2470: 2469: 2467: 2453: 2450: 2449: 2416: 2393: 2331: 2275: 2274: 2272: 2261: 2258: 2257: 2211: 2206: 2200: 2197: 2194: 2193: 2191: 2182: 2177: 2175: 2166: 2161: 2159: 2146: 2141: 2139: 2133: 2130: 2127: 2126: 2124: 2119: 2113: 2108: 2106: 2100: 2097: 2094: 2093: 2091: 2086: 2080: 2075: 2073: 2064: 2059: 2057: 2045: 2040: 2038: 2026: 2021: 2019: 2012:, selectivity, 2006: 2001: 1999: 1994: 1989: 1978: 1976: 1974: 1968: 1962: 1958: 1956: 1954: 1948: 1942: 1940: 1938: 1936: 1930: 1925: 1923: 1920: 1913: 1908: 1906: 1887: 1885: 1883: 1877: 1873: 1871: 1865: 1861: 1859: 1857: 1847: 1845: 1841: 1834: 1829: 1823: 1820: 1817: 1816: 1814: 1809: 1802: 1797: 1795: 1773: 1741: 1740: 1713: 1711: 1710: 1705: 1701: 1696: 1692: 1687: 1683: 1678: 1674: 1669: 1665: 1660: 1656: 1641: 1638: 1635: 1634: 1632: 1630: 1629: 1618: 1616: 1614: 1609: 1607: 1605: 1604: 1593: 1591: 1589: 1588: 1575: 1572: 1569: 1568: 1566: 1564: 1557: 1554: 1551: 1550: 1548: 1546: 1545: 1542: 1529: 1526: 1523: 1522: 1520: 1518: 1517: 1505: 1502: 1499: 1498: 1496: 1494: 1493: 1488: 1482:= PPV + NPV − 1 1481: 1480: 1477: 1468: 1461: 1458: 1455: 1454: 1452: 1450: 1449: 1440: 1433: 1430: 1427: 1426: 1424: 1422: 1421: 1408: 1405: 1402: 1401: 1399: 1397: 1396: 1381: 1378: 1375: 1374: 1372: 1370: 1369: 1356: 1353: 1350: 1349: 1347: 1345: 1344: 1335: 1328: 1325: 1322: 1321: 1319: 1317: 1316: 1307: 1300: 1297: 1294: 1293: 1291: 1289: 1288: 1283: 1277: 1268: 1265: 1262: 1261: 1259: 1257: 1256: 1244: 1237: 1234: 1231: 1230: 1228: 1226: 1225: 1219: 1218: 1209: 1202: 1199: 1196: 1195: 1193: 1191: 1190: 1185: 1184: 1179: 1176: 1175: 1166: 1165: 1154: 1153: 1135: 1128: 1125: 1122: 1121: 1119: 1117: 1116: 1111: 1110: 1107: 1106: 1097: 1090: 1087: 1084: 1083: 1081: 1079: 1078: 1072: 1055: 1054: 1043: 1042: 1028: 1013: 1010: 1004: 1002: 1001: 1000: 998: 996: 995: 987:= TPR + TNR − 1 986: 985: 982: 963: 962: 918: 912: 876:where function 845:An estimate of 818: 813: 800: 795: 790: 786: 776: 768: 764: 755: 751: 750: 748: 739: 735: 733: 730: 729: 725:is defined as: 705: 701: 699: 696: 695: 678: 674: 672: 669: 668: 651: 647: 645: 642: 641: 624: 620: 618: 615: 614: 605:used in signal 591: 561:egative, rules 545:ositive, rules 534: 506: 497: 489: 483: 480: 471: 468: 445: 442: 433: 430: 415: 412: 403: 368: 367: 362: 353: 352: 342: 333: 332: 324: 316: 315: 310: 303: 298: 294: 292: 289: 288: 281: 242: 241: 236: 227: 226: 216: 207: 206: 198: 190: 189: 184: 177: 172: 168: 166: 163: 162: 155: 150: 123: 115:detection limit 28: 23: 22: 15: 12: 11: 5: 4967: 4957: 4956: 4951: 4946: 4941: 4936: 4931: 4929:Bioinformatics 4926: 4909: 4908: 4906: 4905: 4899: 4896: 4895: 4893: 4892: 4887: 4882: 4876: 4874: 4870: 4869: 4867: 4866: 4861: 4855: 4853: 4847: 4846: 4844: 4843: 4838: 4832: 4830: 4826: 4825: 4823: 4822: 4817: 4811: 4809: 4803: 4802: 4800: 4799: 4794: 4789: 4783: 4781: 4775: 4774: 4772: 4771: 4766: 4761: 4755: 4753: 4747: 4746: 4744: 4743: 4738: 4733: 4728: 4723: 4718: 4713: 4708: 4706:Davies-Bouldin 4703: 4698: 4692: 4690: 4684: 4683: 4681: 4680: 4675: 4670: 4665: 4660: 4655: 4650: 4645: 4640: 4635: 4630: 4624: 4622: 4620:Classification 4616: 4615: 4613: 4612: 4607: 4602: 4597: 4592: 4587: 4582: 4577: 4572: 4567: 4562: 4556: 4554: 4548: 4547: 4539: 4538: 4531: 4524: 4516: 4507: 4506: 4504: 4503: 4500:List of topics 4496: 4489: 4481: 4478: 4477: 4475: 4474: 4469: 4464: 4459: 4454: 4452:Selection bias 4448: 4446: 4442: 4441: 4439: 4438: 4433: 4428: 4423: 4418: 4412: 4410: 4404: 4403: 4401: 4400: 4395: 4390: 4385: 4380: 4375: 4373:Animal testing 4370: 4365: 4359: 4357: 4353: 4352: 4349: 4348: 4325:Mortality rate 4311: 4309: 4303: 4302: 4285: 4283: 4277: 4276: 4247: 4245: 4239: 4238: 4217: 4215: 4206: 4200: 4199: 4197: 4196: 4191: 4186: 4181: 4171: 4170: 4169: 4164: 4154: 4140: 4138: 4126: 4125: 4123: 4122: 4121: 4120: 4118:Platform trial 4110: 4109: 4108: 4103: 4098: 4087: 4085: 4073: 4072: 4070: 4069: 4064: 4059: 4054: 4049: 4044: 4043: 4042: 4037: 4030:Clinical trial 4026: 4024: 4020: 4019: 4008: 4007: 4000: 3993: 3985: 3979: 3978: 3973: 3968: 3963: 3961:UIC Calculator 3956: 3955:External links 3953: 3951: 3950: 3907: 3879:(6943): 1552. 3863: 3861: 3858: 3856: 3855: 3812: 3761: 3706: 3703:on 2015-06-20. 3640: 3622: 3591:(1): 124–138. 3571: 3528: 3495: 3458:BioData Mining 3444: 3393: 3367: 3360: 3334: 3311: 3292: 3273:(8): 861–874. 3250: 3243: 3223: 3194:(3): 1027–37. 3174: 3148: 3111:(8): 861–874. 3095: 3046: 3003: 2960: 2946: 2921: 2902:Mangrulkar R. 2894: 2872: 2843:(6943): 1552. 2820: 2769: 2738: 2703:(2): 1432–39. 2686: 2684: 2681: 2678: 2677: 2663: 2662: 2660: 2657: 2655: 2654: 2649: 2643: 2638: 2633: 2628: 2623: 2618: 2613: 2608: 2602: 2601: 2600: 2586: 2583:Biology portal 2572: 2569:Science portal 2556: 2553: 2535: 2532: 2528:Type II errors 2512: 2511: 2492: 2477: 2466: 2463: 2460: 2457: 2415: 2412: 2392: 2389: 2380: 2379: 2364: 2361: 2358: 2355: 2352: 2349: 2346: 2343: 2340: 2337: 2334: 2329: 2326: 2323: 2320: 2317: 2314: 2309: 2306: 2303: 2300: 2297: 2294: 2291: 2288: 2285: 2282: 2279: 2271: 2268: 2265: 2251: 2248: 2241: 2235: 2228: 2213: 2212: 2189: 2183: 2173: 2167: 2157: 2151: 2148: 2147: 2122: 2114: 2089: 2081: 2071: 2065: 2055: 2046: 2036: 2031: 2028: 2027: 2017: 2007: 1997: 1982: 1966: 1950:False positive 1946: 1932: 1931: 1921: 1914: 1904: 1891: 1879:False negative 1875: 1863: 1854: 1836: 1835: 1812: 1807: 1803: 1793: 1787: 1781: 1775: 1774:(pop.) = 2030 1768: 1765: 1764: 1762: 1754: 1749: 1748: 1745: 1739: 1738: 1731: 1724: 1716: 1715: 1709: 1708: 1699: 1690: 1681: 1672: 1663: 1653: 1652: 1649: 1648: 1623: 1598: 1582: 1576:2 TP + FP + FN 1540: 1536: 1513: 1512: 1484: 1471: 1443: 1415: 1389: 1388: 1363: 1338: 1310: 1275: 1251: 1248: 1247: 1212: 1169: 1157: 1149:False positive 1145: 1139: 1138: 1108:miss rate 1100: 1058: 1050:False negative 1046: 1034: 1029: 1024: 1021: 1020: 989: 976: 971: 966: 956: 955: 953: 948: 946: 914:Main article: 911: 908: 874: 873: 843: 842: 827: 821: 816: 812: 808: 803: 798: 794: 789: 783: 780: 771: 767: 763: 758: 754: 747: 742: 738: 708: 704: 681: 677: 654: 650: 627: 623: 590: 587: 533: 532:Misconceptions 530: 505: 502: 485: 484: 481: 474: 472: 469: 462: 447: 446: 443: 436: 434: 431: 424: 417: 416: 413: 406: 402: 399: 382: 381: 361: 358: 356: 354: 341: 338: 336: 334: 323: 309: 306: 304: 297: 296: 280: 277: 256: 255: 235: 232: 230: 228: 215: 212: 210: 208: 197: 183: 180: 178: 171: 170: 154: 151: 149: 146: 141: 140: 137: 134: 131: 122: 119: 73: 72: 66: 26: 9: 6: 4: 3: 2: 4966: 4955: 4952: 4950: 4947: 4945: 4942: 4940: 4937: 4935: 4934:Biostatistics 4932: 4930: 4927: 4925: 4922: 4921: 4919: 4904: 4901: 4900: 4897: 4891: 4888: 4886: 4883: 4881: 4878: 4877: 4875: 4871: 4865: 4862: 4860: 4857: 4856: 4854: 4852: 4848: 4842: 4839: 4837: 4834: 4833: 4831: 4827: 4821: 4818: 4816: 4813: 4812: 4810: 4808: 4804: 4798: 4795: 4793: 4790: 4788: 4785: 4784: 4782: 4780: 4776: 4770: 4767: 4765: 4762: 4760: 4757: 4756: 4754: 4752: 4748: 4742: 4739: 4737: 4734: 4732: 4729: 4727: 4724: 4722: 4721:Jaccard index 4719: 4717: 4714: 4712: 4709: 4707: 4704: 4702: 4699: 4697: 4694: 4693: 4691: 4689: 4685: 4679: 4676: 4674: 4671: 4669: 4666: 4664: 4661: 4659: 4656: 4654: 4651: 4649: 4646: 4644: 4641: 4639: 4636: 4634: 4631: 4629: 4626: 4625: 4623: 4621: 4617: 4611: 4608: 4606: 4603: 4601: 4598: 4596: 4593: 4591: 4588: 4586: 4583: 4581: 4578: 4576: 4573: 4571: 4568: 4566: 4563: 4561: 4558: 4557: 4555: 4553: 4549: 4544: 4537: 4532: 4530: 4525: 4523: 4518: 4517: 4514: 4502: 4501: 4497: 4495: 4494: 4490: 4488: 4487: 4483: 4482: 4479: 4473: 4470: 4468: 4465: 4463: 4460: 4458: 4455: 4453: 4450: 4449: 4447: 4443: 4437: 4434: 4432: 4431:Meta-analysis 4429: 4427: 4424: 4422: 4419: 4417: 4414: 4413: 4411: 4409: 4405: 4399: 4398:Vaccine trial 4396: 4394: 4393:Seeding trial 4391: 4389: 4386: 4384: 4381: 4379: 4376: 4374: 4371: 4369: 4366: 4364: 4361: 4360: 4358: 4354: 4346: 4342: 4338: 4334: 4330: 4326: 4322: 4318: 4314: 4310: 4308: 4304: 4300: 4296: 4292: 4288: 4284: 4282: 4278: 4274: 4270: 4266: 4262: 4258: 4254: 4250: 4246: 4244: 4240: 4236: 4232: 4228: 4224: 4220: 4216: 4214: 4210: 4207: 4205: 4201: 4195: 4192: 4190: 4187: 4185: 4182: 4179: 4175: 4172: 4168: 4165: 4163: 4162:Retrospective 4160: 4159: 4158: 4155: 4153: 4149: 4145: 4142: 4141: 4139: 4136: 4131: 4127: 4119: 4116: 4115: 4114: 4111: 4107: 4104: 4102: 4099: 4097: 4094: 4093: 4092: 4089: 4088: 4086: 4083: 4082:EBM I to II-1 4078: 4074: 4068: 4065: 4063: 4060: 4058: 4055: 4053: 4050: 4048: 4045: 4041: 4038: 4036: 4033: 4032: 4031: 4028: 4027: 4025: 4021: 4017: 4013: 4006: 4001: 3999: 3994: 3992: 3987: 3986: 3983: 3977: 3974: 3972: 3969: 3967: 3964: 3962: 3959: 3958: 3947: 3943: 3938: 3933: 3929: 3925: 3921: 3917: 3913: 3908: 3904: 3900: 3895: 3890: 3886: 3882: 3878: 3874: 3870: 3865: 3864: 3851: 3847: 3843: 3839: 3835: 3831: 3828:(5): 329–42. 3827: 3823: 3816: 3808: 3804: 3799: 3794: 3789: 3784: 3780: 3776: 3772: 3765: 3757: 3753: 3748: 3743: 3739: 3735: 3731: 3727: 3723: 3716: 3715:"GeneMark-ES" 3710: 3699: 3695: 3691: 3687: 3683: 3678: 3673: 3669: 3665: 3658: 3654: 3650: 3644: 3636: 3632: 3626: 3618: 3614: 3609: 3604: 3599: 3594: 3590: 3586: 3582: 3575: 3567: 3563: 3559: 3555: 3551: 3547: 3543: 3539: 3532: 3523: 3518: 3514: 3510: 3506: 3499: 3491: 3487: 3482: 3477: 3472: 3467: 3463: 3459: 3455: 3448: 3440: 3436: 3431: 3426: 3421: 3416: 3412: 3408: 3404: 3397: 3382: 3378: 3371: 3363: 3357: 3353: 3349: 3345: 3338: 3330: 3326: 3322: 3315: 3307: 3303: 3296: 3288: 3284: 3280: 3276: 3272: 3268: 3261: 3254: 3246: 3240: 3236: 3235: 3227: 3219: 3215: 3210: 3205: 3201: 3197: 3193: 3189: 3185: 3178: 3170: 3166: 3162: 3155: 3153: 3144: 3140: 3136: 3132: 3127: 3122: 3118: 3114: 3110: 3106: 3099: 3091: 3087: 3082: 3077: 3073: 3069: 3065: 3061: 3057: 3050: 3042: 3038: 3034: 3030: 3026: 3022: 3018: 3014: 3007: 2999: 2995: 2991: 2987: 2983: 2979: 2975: 2971: 2964: 2956: 2950: 2936:on 2013-07-06 2935: 2931: 2925: 2909: 2905: 2898: 2882: 2876: 2868: 2864: 2859: 2854: 2850: 2846: 2842: 2838: 2834: 2827: 2825: 2816: 2812: 2807: 2802: 2797: 2792: 2788: 2784: 2780: 2773: 2765: 2761: 2757: 2753: 2749: 2742: 2734: 2730: 2726: 2722: 2718: 2714: 2710: 2706: 2702: 2698: 2691: 2687: 2674: 2668: 2664: 2653: 2650: 2647: 2644: 2642: 2639: 2637: 2634: 2632: 2629: 2627: 2624: 2622: 2619: 2617: 2614: 2612: 2609: 2607: 2604: 2603: 2598: 2587: 2584: 2578: 2573: 2570: 2564: 2559: 2552: 2549: 2545: 2541: 2531: 2529: 2525: 2521: 2517: 2490: 2475: 2464: 2461: 2458: 2455: 2448: 2447: 2446: 2444: 2443:harmonic mean 2440: 2435: 2433: 2432: 2427: 2426: 2421: 2411: 2409: 2405: 2403: 2399: 2398:gold standard 2388: 2384: 2359: 2356: 2353: 2350: 2347: 2344: 2341: 2338: 2335: 2327: 2324: 2321: 2318: 2315: 2312: 2304: 2301: 2298: 2295: 2292: 2289: 2283: 2280: 2277: 2269: 2266: 2263: 2255: 2252: 2249: 2246: 2242: 2239: 2236: 2233: 2232:type II error 2229: 2226: 2222: 2221: 2220: 2219: 2210: 2187: 2181: 2171: 2168: 2165: 2155: 2152: 2150: 2149: 2145: 2118: 2115: 2112: 2085: 2082: 2079: 2069: 2066: 2063: 2054: 2050: 2047: 2044: 2035: 2032: 2029: 2025: 2020:= 1820 / 2000 2015: 2011: 2008: 2005: 1992: 1986: 1983: 1977:(2030 × 1971: 1970:True negative 1967: 1957:(2030 × 1951: 1947: 1941:(2030 × 1937:negative (AN) 1934: 1933: 1929: 1918: 1915: 1912: 1903: 1899: 1895: 1892: 1880: 1876: 1868: 1867:True positive 1864: 1858:positive (AP) 1855: 1853: 1851: 1846:(as confirmed 1844: 1840:Patients with 1837: 1833: 1811: 1804: 1801: 1791: 1788: 1786: 1783:Test outcome 1782: 1780: 1777:Test outcome 1776: 1772: 1769: 1767: 1766: 1761: 1759: 1752: 1746: 1743: 1742: 1737: 1732: 1730: 1725: 1723: 1718: 1717: 1714: 1703: 1694: 1685: 1676: 1667: 1658: 1654: 1628: 1627:Jaccard index 1602: 1599: 1586: 1583: 1544: 1537: 1515: 1514: 1491: 1485: 1475: 1472: 1447: 1444: 1419: 1416: 1394: 1391: 1390: 1367: 1364: 1342: 1339: 1314: 1311: 1286: 1280: 1276: 1255: 1252: 1249: 1222: 1216: 1213: 1188: 1182: 1173: 1170: 1163: 1162: 1161:True negative 1158: 1151: 1150: 1146: 1144: 1141: 1140: 1114: 1104: 1101: 1076: 1070: 1066: 1062: 1059: 1052: 1051: 1047: 1040: 1039: 1038:True positive 1035: 1033: 1030: 1027: 1022: 993: 990: 980: 977: 975: 972: 970: 967: 961: 958: 957: 952: 947: 944: 941: 939: 938: 933: 932: 927: 923: 917: 907: 905: 901: 900:dimensionless 897: 893: 891: 887: 883: 879: 871: 868:(hit rate) − 867: 863: 860: 859: 858: 856: 852: 848: 825: 819: 814: 810: 806: 801: 796: 792: 787: 781: 778: 769: 765: 761: 756: 752: 745: 736: 728: 727: 726: 724: 706: 702: 679: 675: 652: 648: 625: 621: 612: 608: 604: 600: 596: 586: 584: 580: 576: 571: 569: 564: 560: 556: 552: 548: 544: 540: 529: 527: 523: 519: 515: 511: 504:Medical usage 501: 498:26 / (26 + 0) 493: 478: 473: 466: 461: 460: 459: 455: 451: 440: 435: 428: 423: 422: 421: 410: 405: 404: 398: 396: 391: 388: 359: 357: 339: 337: 321: 307: 305: 287: 286: 285: 276: 274: 273:type II error 269: 265: 262: 233: 231: 213: 211: 195: 181: 179: 161: 160: 159: 145: 138: 135: 132: 129: 128: 127: 118: 116: 112: 107: 100: 96: 92: 88: 86: 82: 78: 70: 67: 64: 60: 57: 56: 55: 52: 48: 44: 34: 30: 19: 4672: 4498: 4491: 4484: 4273:Hazard ratio 4157:Cohort study 3919: 3915: 3876: 3872: 3825: 3821: 3815: 3778: 3774: 3764: 3729: 3725: 3709: 3698:the original 3670:(1): 78–94. 3667: 3663: 3643: 3634: 3625: 3588: 3584: 3574: 3541: 3537: 3531: 3512: 3508: 3498: 3461: 3457: 3447: 3410: 3407:BMC Genomics 3406: 3396: 3385:. Retrieved 3380: 3370: 3346:. Springer. 3343: 3337: 3328: 3324: 3314: 3305: 3295: 3270: 3266: 3253: 3233: 3226: 3191: 3187: 3177: 3168: 3164: 3108: 3104: 3098: 3063: 3059: 3049: 3019:(2): 175–9. 3016: 3012: 3006: 2973: 2969: 2963: 2949: 2938:. Retrieved 2934:the original 2924: 2912:. Retrieved 2908:the original 2897: 2885:. Retrieved 2875: 2840: 2836: 2789:(1): 45–50. 2786: 2782: 2772: 2758:(4): 291–4. 2755: 2751: 2741: 2700: 2696: 2690: 2667: 2537: 2523: 2513: 2436: 2429: 2423: 2417: 2406: 2394: 2385: 2381: 2225:type I error 2217: 2216: 2208: 2179: 2163: 2143: 2110: 2077: 2061: 2042: 2023: 2009: 2003: 2000:= 180 / 2000 1981:× 91%) 1969: 1949: 1927: 1910: 1901: 1878: 1866: 1843:bowel cancer 1839: 1831: 1799: 1784: 1778: 1756: 1712: 1702: 1693: 1684: 1675: 1666: 1657: 1642:TP + FN + FP 1159: 1147: 1143:Negative (N) 1142: 1048: 1036: 1032:Positive (P) 1031: 1025: 979:Informedness 973: 968: 950: 935: 929: 925: 921: 919: 903: 895: 894: 885: 881: 877: 875: 869: 865: 861: 846: 844: 722: 598: 592: 583:informedness 575:ROC analysis 572: 567: 562: 558: 554: 550: 546: 542: 538: 535: 507: 494: 486: 456: 452: 448: 418: 395:type I error 392: 386: 383: 282: 270: 266: 260: 257: 156: 142: 124: 108: 105: 93: 89: 74: 68: 58: 50: 40: 29: 4467:Null result 4426:Replication 4321:Infectivity 4243:Association 4194:Case report 4184:Case series 4167:Prospective 3635:medcalc.org 3515:: 168–192. 3331:(1): 37–63. 3171:(1): 37–63. 2606:Brier score 2120:(LR−) 2039:= 30 / 2030 2037:= AP / pop. 2010:Specificity 1902:sensitivity 1813:= 2 × 1552:2 PPV × TPR 1487:Diagnostic 1221:specificity 1069:sensitivity 855:false-alarm 490:6 / (6 + 0) 300:specificity 279:Specificity 174:sensitivity 153:Sensitivity 69:Specificity 63:conditioned 59:Sensitivity 4918:Categories 4873:Similarity 4815:Perplexity 4726:Rand index 4711:Dunn index 4696:Silhouette 4688:Clustering 4552:Regression 4269:Odds ratio 4261:Risk ratio 4227:Prevalence 4213:Occurrence 4189:Case study 3464:(13): 13. 3387:2019-07-17 2976:(2): 107. 2940:2013-08-23 2914:24 January 2887:18 January 2683:References 2034:Prevalence 1489:odds ratio 1474:Markedness 1254:Prevalence 514:prevalence 148:Definition 47:statistics 4643:Precision 4595:RMSE/RMSD 4329:Morbidity 4317:Virulence 4219:Incidence 3672:CiteSeerX 3558:0098-7484 3121:CiteSeerX 2487:precision 2476:× 2472:precision 2465:× 2425:precision 2357:− 2325:− 2290:− 2243:Positive 2201:LR− 2053:precision 2018:= TN / AN 1998:= FP / AN 1924:= 10 / 30 1922:= FN / AP 1907:= 20 / 30 1905:= TP / AP 1850:endoscopy 1594:PPV × TPR 1558:PPV + TPR 1524:TPR + TNR 1469:= 1 − FOR 1441:= 1 − PPV 1336:= 1 − NPV 1308:= 1 − FDR 1285:precision 1245:= 1 − FPR 1210:= 1 − TNR 1136:= 1 − TPR 1098:= 1 − FNR 1014:TPR - FPR 1005:TPR × FPR 811:σ 793:σ 766:μ 762:− 753:μ 741:′ 703:σ 676:μ 649:σ 622:μ 603:statistic 85:screening 81:diagnoses 37:positive. 4859:Coverage 4638:Accuracy 4493:Glossary 4486:Category 4363:In vitro 4204:Measures 4023:Overview 3946:14512479 3842:22510764 3807:15144565 3756:16314312 3655:(1997). 3653:Karlin S 3617:29358889 3566:27305422 3490:33541410 3439:31898477 3218:20089911 3090:15271832 3041:31400167 2998:44505648 2815:18158403 2733:19967899 2725:20340527 2555:See also 2207:≈ 2178:≈ 2142:≈ 2109:≈ 2076:≈ 2041:≈ 1990:fall-out 1926:≈ 1909:≈ 1798:≈ 1790:Accuracy 1785:negative 1779:positive 1393:Accuracy 1180:fall-out 851:hit rate 518:Positive 261:rule out 43:medicine 4751:Ranking 4741:SimHash 4628:F-score 4368:In vivo 3903:8019315 3894:2540489 3850:3352427 3747:1298918 3694:9149143 3649:Burge C 3608:5757117 3481:7863449 3430:6941312 3287:2027090 3209:2824341 3143:2027090 3113:Bibcode 3033:8028470 2990:8028462 2867:8019315 2858:2540489 2806:2636062 2764:9747274 2717:4586294 2439:F-score 2204:⁠ 2192:⁠ 2137:⁠ 2125:⁠ 2104:⁠ 2092:⁠ 2051:(PPV), 1987:(FPR), 1961:× 1896:(TPR), 1827:⁠ 1815:⁠ 1645:⁠ 1633:⁠ 1617:√ 1608:√ 1592:√ 1579:⁠ 1567:⁠ 1561:⁠ 1549:⁠ 1533:⁠ 1521:⁠ 1509:⁠ 1497:⁠ 1465:⁠ 1453:⁠ 1437:⁠ 1425:⁠ 1412:⁠ 1403:TP + TN 1400:⁠ 1385:⁠ 1373:⁠ 1360:⁠ 1348:⁠ 1332:⁠ 1320:⁠ 1304:⁠ 1292:⁠ 1272:⁠ 1260:⁠ 1241:⁠ 1229:⁠ 1217:(TNR), 1206:⁠ 1194:⁠ 1174:(FPR), 1132:⁠ 1120:⁠ 1105:(FNR), 1094:⁠ 1082:⁠ 1071:(SEN), 1063:(TPR), 1017:⁠ 1003:√ 999:⁠ 964:= P + N 579:fallout 387:rule in 4648:Recall 3944:  3937:200804 3934:  3901:  3891:  3848:  3840:  3805:  3798:421630 3795:  3781:: 59. 3754:  3744:  3692:  3674:  3615:  3605:  3564:  3556:  3488:  3478:  3437:  3427:  3358:  3285:  3241:  3216:  3206:  3141:  3123:  3088:  3081:487735 3078:  3039:  3031:  2996:  2988:  2865:  2855:  2813:  2803:  2762:  2731:  2723:  2715:  2495:recall 2480:recall 2431:recall 2188:(DOR) 2180:99.45% 1975:= 1820 1939:= 2000 1898:recall 1800:90.64% 1792:(ACC) 1603:(MCC) 1492:(DOR) 1476:(MK), 1448:(NPV) 1420:(FDR) 1395:(ACC) 1368:(LR−) 1343:(LR+) 1315:(FOR) 1281:(PPV), 1164:(TN), 1152:(FP), 1065:recall 1053:(FN), 1041:(TP), 667:, and 397:rate. 275:rate. 4653:Kappa 4570:sMAPE 4307:Other 3846:S2CID 3701:(PDF) 3660:(PDF) 3283:S2CID 3263:(PDF) 3139:S2CID 3037:S2CID 2994:S2CID 2729:S2CID 2713:JSTOR 2659:Notes 2524:power 2238:Power 2172:(NPV) 2164:90.0% 2156:(FDR) 2144:0.366 2087:(LR+) 2078:0.55% 2070:(FOR) 2043:1.48% 2016:(TNR) 1955:= 180 1928:33.3% 1911:66.7% 1832:0.174 1810:score 1587:(FM) 1543:score 1409:P + N 1269:P + N 1075:power 1008:- FPR 994:(PT) 898:is a 4820:BLEU 4792:SSIM 4787:PSNR 4764:NDCG 4585:MSPE 4580:MASE 4575:MAPE 4146:vs. 4014:and 3942:PMID 3899:PMID 3838:PMID 3803:PMID 3752:PMID 3690:PMID 3613:PMID 3562:PMID 3554:ISSN 3538:JAMA 3486:PMID 3435:PMID 3356:ISBN 3239:ISBN 3214:PMID 3086:PMID 3029:PMID 2986:PMID 2916:2012 2889:2023 2863:PMID 2811:PMID 2760:PMID 2721:PMID 2437:The 2209:20.2 2111:7.41 2004:9.0% 1972:(TN) 1952:(FP) 1900:, 1884:= 10 1881:(FN) 1872:= 20 1869:(TP) 1860:= 30 1735:edit 1728:talk 1721:view 1570:2 TP 853:and 694:and 640:and 593:The 520:and 83:and 45:and 4841:FID 4807:NLP 4797:IoU 4759:MRR 4736:SMC 4668:ROC 4663:AUC 4658:MCC 4610:MAD 4605:MDA 4590:RMS 4565:MAE 4560:MSE 3932:PMC 3924:doi 3920:327 3916:BMJ 3889:PMC 3881:doi 3877:308 3873:BMJ 3830:doi 3793:PMC 3783:doi 3742:PMC 3734:doi 3682:doi 3668:268 3603:PMC 3593:doi 3546:doi 3542:315 3517:doi 3476:PMC 3466:doi 3425:PMC 3415:doi 3348:doi 3275:doi 3204:PMC 3196:doi 3131:doi 3076:PMC 3068:doi 3064:329 3060:BMJ 3021:doi 2978:doi 2853:PMC 2845:doi 2841:308 2837:BMJ 2801:PMC 2791:doi 2756:125 2705:doi 2418:In 2195:LR+ 2134:TNR 2128:FNR 2101:FPR 2095:TPR 2062:10% 2024:91% 1848:on 1506:LR− 1500:LR+ 1382:TNR 1376:FNR 1357:FPR 1351:TPR 1044:hit 934:or 884:), 597:or 568:and 563:out 508:In 41:In 4920:: 4769:AP 4633:P4 4343:, 4339:, 4335:, 4331:, 4327:, 4323:, 4319:, 4315:, 4297:, 4293:, 4289:, 4271:, 4267:, 4263:, 4259:, 4255:, 4251:, 4233:, 4229:, 4225:, 4221:, 4150:, 3940:. 3930:. 3918:. 3914:. 3897:. 3887:. 3875:. 3871:. 3844:. 3836:. 3826:13 3824:. 3801:. 3791:. 3777:. 3773:. 3750:. 3740:. 3730:33 3728:. 3724:. 3688:. 3680:. 3666:. 3662:. 3651:, 3633:. 3611:. 3601:. 3589:24 3587:. 3583:. 3560:. 3552:. 3540:. 3513:17 3511:. 3507:. 3484:. 3474:. 3462:14 3460:. 3456:. 3433:. 3423:. 3411:21 3409:. 3405:. 3379:. 3354:. 3327:. 3323:. 3304:. 3281:. 3271:27 3269:. 3265:. 3212:. 3202:. 3192:30 3190:. 3186:. 3167:. 3163:. 3151:^ 3137:. 3129:. 3119:. 3109:27 3107:. 3084:. 3074:. 3062:. 3058:. 3035:. 3027:. 3017:14 3015:. 2992:. 2984:. 2974:14 2972:. 2861:. 2851:. 2839:. 2835:. 2823:^ 2809:. 2799:. 2787:56 2785:. 2781:. 2754:. 2750:. 2727:. 2719:. 2711:. 2701:62 2699:. 2530:. 2256:= 2190:= 2162:= 2123:= 2090:= 2060:= 2022:= 2002:= 1993:, 1965:) 1945:) 1890:) 1830:≈ 1636:TP 1631:= 1615:- 1606:= 1590:= 1565:= 1547:= 1519:= 1495:= 1462:PN 1456:TN 1451:= 1434:PP 1428:FP 1423:= 1398:= 1371:= 1346:= 1329:PN 1323:FN 1318:= 1301:PP 1295:TP 1290:= 1258:= 1232:TN 1227:= 1197:FP 1192:= 1123:FN 1118:= 1085:TP 1080:= 1067:, 997:= 981:, 904:d′ 896:d′ 892:. 864:= 862:d′ 847:d′ 723:d′ 599:d′ 547:in 539:sp 49:, 4600:R 4535:e 4528:t 4521:v 4180:) 4176:( 4137:) 4133:( 4084:) 4080:( 4004:e 3997:t 3990:v 3948:. 3926:: 3905:. 3883:: 3852:. 3832:: 3809:. 3785:: 3779:5 3758:. 3736:: 3717:. 3684:: 3637:. 3619:. 3595:: 3568:. 3548:: 3525:. 3519:: 3492:. 3468:: 3441:. 3417:: 3390:. 3364:. 3350:: 3329:2 3308:. 3289:. 3277:: 3247:. 3220:. 3198:: 3169:2 3145:. 3133:: 3115:: 3092:. 3070:: 3043:. 3023:: 3000:. 2980:: 2943:. 2918:. 2891:. 2869:. 2847:: 2817:. 2793:: 2766:. 2735:. 2707:: 2491:+ 2462:2 2459:= 2456:F 2363:) 2360:1 2354:R 2351:N 2348:T 2345:+ 2342:R 2339:P 2336:T 2333:( 2328:1 2322:R 2319:N 2316:T 2313:+ 2308:) 2305:1 2302:+ 2299:R 2296:N 2293:T 2287:( 2284:R 2281:P 2278:T 2270:= 2267:T 2264:P 2198:/ 2131:/ 2098:/ 1852:) 1821:/ 1808:1 1806:F 1639:/ 1573:/ 1555:/ 1541:1 1539:F 1530:2 1527:/ 1503:/ 1459:/ 1431:/ 1406:/ 1379:/ 1354:/ 1326:/ 1298:/ 1266:/ 1263:P 1238:N 1235:/ 1203:N 1200:/ 1129:P 1126:/ 1091:P 1088:/ 1011:/ 926:N 922:P 886:p 882:p 880:( 878:Z 870:Z 866:Z 826:) 820:2 815:N 807:+ 802:2 797:S 788:( 782:2 779:1 770:N 757:S 746:= 737:d 707:N 680:N 653:S 626:S 559:n 555:n 553:e 551:s 543:p 360:= 340:= 322:+ 308:= 234:= 214:= 196:+ 182:= 20:)

Index

Sensitivity (tests)

medicine
statistics
conditioned
gold standard test
diagnoses
screening

laboratory quality control
detection limit
type II error
type I error
A graphical illustration of sensitivity and specificity
High sensitivity and low specificity
Low sensitivity and high specificity
A test result with 100 percent sensitivity
A test result with 100 percent specificity
medical diagnosis
prevalence
Positive
negative predictive values
Bayesian clinical diagnostic model
ROC analysis
fallout
informedness
sensitivity index
statistic
detection theory
normally distributed

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