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Table 3 Sensitivity, Specificity, Positive Predictive Value and Negative Predictive Value of the Risk Score and Gynecological Examination Data for Diagnosing Cervicitis by Chlamydia Trachomatis and/or Neisseria Gonorrhoeae.

From: Lack of utility of risk score and gynecological examination for screening for sexually transmitted infections in sexually active adolescents

Variables Sensitivity
% (95% CIa)
Specificity
% (95% CI)
PPVb
% (95% CI)
NPVc
% (95% CI)
Risk score 31.9 (21.2–44.2) 76.5 (71.7–80.8) 20.8 (13.5–29.7) 85.4 (81.0–89.0)
Pain upon bimanual maneuver 36.2 (25.6–48.7) 80.2 (75.6–84.2) 26.0 (17.6–36.0) 86.7 (82.6–90.2)
Ectopia 30.4 (19.9–42.8) 75.1 (70.3–79.5) 19.1 (12.2–27.7) 84.9 (80.5–88.6)
Friability 43.5 (31.5–56.0) 81.0 (76.6–84.9) 30.6 (21.7–40.7) 88.2 (84.2–91.5)
Mucopurulent discharge 15.9 (8.2–26.7) 92.2 (88.9–94.8) 28.2 (15.0–44.9) 85.1 (81.1–88.4)
  1. CI: confidence interval
  2. PPV: positive predictive value
  3. NPV: negative predictive value