Figure 4

Forest plots of sensitivity and specificity for Xpert MTB/RIF assay. The pooled sensitivity was 91% (95% CI 87–94%; n = 20); pooled specificity of all studies was 92% (95% CI 89–94%; n = 20). TP = true positive; FP = false positive; FN = false negative; TN = true negative. The point estimates of sensitivity and specificity from each study are shown as solid circles (blue square). Error (black horizontal line) bars indicate 95% CI. Numbers indicate the studies included in the meta-analysis, as cited in the reference list.