Table 3.
Estimates of Sensitivity and Specificity of the Questionnaire*
| Sensitivity | Specificity | PPV | NPV | |
|---|---|---|---|---|
| Total Population | ||||
| Accuracy of self-reported male-like body hair for predicting hirsutism (i.e., mFG ≥ 4) | 81% | 80% | 81% | 80% |
| Accuracy of self-reported oligo-amenorrhea | 98% | 87% | 84% | 98% |
| Accuracy to detect PCOS by Rotterdam 2003a | 89% | 78% | 85% | 83% |
| Women <40 years old | ||||
| Accuracy of self-reported male-like body hair for predicting hirsutism (i.e., mFG ≥ 4) | 81% | 80% | 82% | 79% |
| Accuracy of self-reported oligo-amenorrhea | 97% | 87% | 86% | 97% |
| Accuracy to detect PCOS by Rotterdam 2003a | 76% | 86% | 90% | 67% |
Abbreviations: mFG, modified Ferriman-Gallwey; NPV, negative predictive value; PCOS, polycystic ovary syndrome; PPV, positive predictive value.
*Irrespective of accuracy of self-assessment
aTwo of the following three criteria: oligo-amenorrhea, hyperandrogenism, or polycystic ovarian morphology