Figure 2.

Forest plot of the sensitivity and specificity estimates and 95% confidence intervals (CIs) of 27 studies stratified by test brands. 37 test brands had generated single data point each (subgroup SDP) while 12 test brands had generated ≥2 data points each. Estimates of sensitivity and specificity from each study are shown as solid squares. Solid lines represent the 95% CIs. Squares are proportional to the weights based on the random effect model. Pooled estimates and 95% CIs is denoted by the diamond at the bottom. I² and p values represents heterogeneity of studies.