Table 3.
Cycle-Specific FRs With 95% CIs by Level of Baseline Urinary FSH Value, Most Recent Urinary FSH Value, and Maximum Urinary FSH Value Among Women in the “Repetitive Urine” Subcohort.
| Urinary FSH, mIU/mg cr | Fecundability Ratio, Unadjusted | Fecundability Ratio, Adjusteda | ||
|---|---|---|---|---|
| Baseline FSH | FR | 95% CI | FR | 95% CI |
| <7 | 0.43 | 0.21-0.89 | 0.47 | 0.23-0.96 |
| 7-11 | Reference | |||
| ≥12 | 0.42 | 0.17-1.00 | 0.47 | 0.18-1.20 |
| Most recent FSH | ||||
| <7 | 0.44 | 0.22-0.84 | 0.41 | 0.21-0.81 |
| 7-11 | Reference | |||
| ≥12 | 0.60 | 0.24-1.49 | 0.75 | 0.28-2.01 |
| Maximum FSH | ||||
| <7 | 0.32 | 0.14-0.72 | 0.32 | 0.14-0.74 |
| 7-11 | Reference | |||
| ≥12 | 0.44 | 0.19-1.01 | 0.54 | 0.22-1.33 |
Abbreviations: CI, confidence interval; FR, fecundability ratios; FSH, follicle-stimulating hormone.
a Adjusted for age and hormonal contraceptive use in the previous year.