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Table 5 Accuracy of lab-test results of PSH compared with that of CUH of selected RTIs (validation study)

From: Reproductive tract infections in women seeking abortion in Vietnam

PSH CUH Total (N) Sensitivity Specificity PPV NPV
  Positive Negative      
Vaginal candidiasis    51 88 79 68 93
Positive 15 7      
Negative 2 27      
Bacterial vaginosis    51 30 90 43 84
Positive 3 4      
Negative 7 37      
Chlamydia    100 0 98 0 94
Positive 0 2      
Negative 6 92      
  1. Note: only tests with complete data were included in this analysis.
  2. PPV = positive predictive value
  3. NPV = negative predictive value