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Table 5 Accuracy of LH and androstendione cut-off points to predict spontaneous ovulation and life birth

From: Luteinizing hormone and androstendione are independent predictors of ovulation after laparoscopic ovarian drilling: a retrospective cohort study

  Spontaneous ovulation (n = 100) Life birth (n = 71)
  LH >12.1 IU/l Androstenedione >3.26 mg/dl LH >12.1 IU/l and androstenedione >3.26 mg/dl LH >12.1 IU/l Androstenedione >3.26 LH >12.1 IU/l and androstenedione >3.26 mg/dl
Sensitivity (%) 88.7 (95% CI 79.0-95.0)a 50.7 (95% CI 38.6-62.8)a 43.7 (95% CI: 31.4-55.3)a 88.9 (95% CI: 73.9-96.9) 44.4 (95% CI: 27.9-61.9) 36.1 (95% CI: 20.2-52.5)
Specifity (%) 75.9 (95% CI 56.5-89.7)a 79.3 (95% CI 60.3-92.0)a 100.0 (95% CI: 85.0-100.0)a 54.3 (95% CI: 36.6-71.2) 42.9 (95% CI: 26.3-60.6) 100.0 (95% CI: 87.4-100.0)
Positive predictive
value (%)
90.0 (95% CI 80.5-95.8)a 85.7 (95% CI 71.5-94.6)a 100.0 (95% CI: 85.9-100.0)a 66.7 (96% CI: 51.6-79.6) 44.4 (95% CI: 27.9-61.9) 100.0 (95% CI: 69.8-100.0)
Negative predictive
value (%)
73.3 (95% CI 54.1-87.7)a 39.7 (95% CI 27.0-53.4)a 42.0 (95% CI: 29.8-53.8)a 82.6 (95% CI: 61.2-95.0) 42.9 (95% CI: 26.3-60.6) 60.3 (95% CI: 45.8-71.9)
  1. aCI = confidence interval