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Table 2 Spearman correlation coefficient of the logit of TPR versus logit of FPR

From: Meta-analysis to compare the accuracy of GeneXpert, MODS and the WHO 2007 algorithm for diagnosis of smear-negative pulmonary tuberculosis

Test

Spearman correlation coefficient

p- value

GeneXpert

0.232

0.405

MODS

0.4

0.600

WHO 2007 algorithm

0.9

0.037

  1. Note: The logit of the true positive rate is the natural log of [true positive rate/(1-true positive rate)]. The logit of the false positive rate is the natural log of [false positive rate/(1-false positive rate)].