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Table 6 Sensitivity and specificity of vaginal pH to predict BV status, cutoff value: pH = 4.5

From: Basic vaginal pH, bacterial vaginosis and aerobic vaginitis: prevalence in early pregnancy and risk of spontaneous preterm delivery, a prospective study in a low socioeconomic and multiethnic South American population

pH

BV+

BV-

Total

< 4.5

0

492

492

> = 4.5

477

722

1199

Total

477

1214

1691

  1. Sensitivity: 477/477 = 100%.
  2. Specificity: 492/1214 = 41%.
  3. Accuracy: 57.3%.
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BMC Pregnancy and Childbirth

ISSN: 1471-2393

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