Table 2 Sensitivity specificity and predictive values of corrected pregnanediol and P4 by Architect assay single values and two-sample luteal percent increase (confirmatory cohort - ovulation identified by ultrasound). PDG, pregnanediol glucuronide. P4, progesterone.
Indicator of ovulation | Value | Sensitivity | Specificity | Positive predictive value | Negative predictive value |
|---|---|---|---|---|---|
PDG follicular to luteal percent-rise, % | 195 | 0.90 | 0.90 | 0.90 | 0.90 |
P4 follicular to luteal percent-rise, % | 165 | 0.88 | 0.88 | 0.87 | 0.88 |
PDG threshold value, mmol/mol | 1.14 | 0.89 | 0.90 | 0.88 | 0.91 |
P4 luteal threshold value, μmol/mol | 0.208 | 0.88 | 0.90 | 0.89 | 0.90 |
