Figure 13

Forest plots of sensitivity and specificity for PCR. The pooled sensitivity was 90% (95% CI 55–99%; n = 4); pooled specificity of all studies was 93% (95% CI 71–99%; n = 4). 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.