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. Author manuscript; available in PMC: 2012 Nov 1.
Published in final edited form as: Fertil Steril. 2011 Sep 15;96(5):1266–1270.e1. doi: 10.1016/j.fertnstert.2011.08.022

Table 3.

Positive predictive (PPV) and negative predictive (NPV) values for differing prevalence rates of hirsutism based on a simplified (sFG) score ≥ 3

Expected Population
Prevalence (%)
PPV for simplified score ≥3 NPV for simplified score ≥3
5 58.5% 98.7%
10 74.8% 97.2%
20 87% 93.9%
31.5a 92.5% 89.4%
70 98.4% 62.4%
a

Prevalence of hirsutism using an mFG score ≥7 in the validation cohort