Table 2.
Cycle-Specific and Day-Specific FRs With 95% CIs by Level of Baseline Urinary FSH Value in the Full Cohort.
| Urinary FSH, mIU/mg cr | Cycle-Specific Fecundability Ratio | Day-Specific Fecundability Ratio | ||
|---|---|---|---|---|
| FR | 95% CI | FR | 95% CI | |
| Unadjusted | ||||
| <7 | 0.70 | 0.44-1.10 | 0.58 | 0.29-1.01 |
| 7-11 | Reference | Reference | ||
| ≥12 | 0.67 | 0.41-1.12 | 0.58 | 0.25-1.08 |
| Adjusted for age | ||||
| <7 | 0.69 | 0.43-1.08 | 0.62 | 0.31-1.08 |
| 7-11 | Reference | Reference | ||
| ≥12 | 0.75 | 0.45-1.27 | 0.63 | 0.27-1.18 |
| Adjusted for age and hormonal contraceptive use | ||||
| <7 | 0.71 | 0.45-1.13 | 0.68 | 0.31-1.25 |
| 7-11 | Reference | Reference | ||
| ≥12 | 0.78 | 0.46-1.32 | 0.79 | 0.31-1.59 |
Abbreviation: CI, confidence interval; FR, fecundability ratios; FSH, follicle-stimulating hormone.