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Paired forest plots of sensitivity and specificity for studies of self-diagnosis of vaginal infection (where Donders14 2016a used pH threshold≥4.5 and Donders14 2016b used pH threshold≥4.7.Sungkar et al represent pooled data from four time points15). TP, true positives; FP, false positives; FN, false negatives; TN, true negatives.
