Table 3 Differences between areas under receiver operator characteristics curves between progesterone (P4) and pregnanediol (PDG) single-sample threshold and two-sample percent rise to confirm ovulation (difference and non-directional p value (two-tailed)), in cohort of women in whom ovulation had been confirmed. PDG, pregnanediol glucuronide; P4 progesterone; CI, confidence interval.

From: Confirmation of ovulation from urinary progesterone analysis: assessment of two automated assay platforms

 

P4 single value 0.944 (95% CI 0.916–0.973

P4 luteal percent increase 0.927 (95% CI (0.915 – 0.940)

PDG luteal 0.951 (95% CI.923–0.978)

PDG luteal percent increase 0.950 (95% CI (0.940–0.961)

P4 single value 0.944 (95% CI 0.916–0.973

 

Difference 0.017 P = 0.278

Difference 0.007 P = 0.730

Difference 0.006 P = 0.696

P4 luteal percent increase 0.927 (95% CI (0.915 – 0.940)

Difference –0.017 P = 0.278

 

Difference 0.0151 P = 0.112

Difference 0.023 P = 0.003

PDG single value 0.951(95% CI.923–0.978)

Difference –0.007 P = 0.730

Difference –0.0151 P = 0.112

 

Difference 0.001 P = 0.946

PDG luteal percent increase 0.950 (95% CI (0.940–0.961)

Difference –0.006 P = 0.696

Difference –0.023 P = 0.003

Difference –0.001 P = 0.946

 
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