Table 2.
Association between day of gonadotropin start and the shorter duration of ovarian stimulation (≤9 days) in patients with luteal phase stimulation.
| Variables | Unadjusted model | Adjusted model | ||
|---|---|---|---|---|
| OR (95% CI) | P value | OR (95% CI) | P value | |
| Gn initial phase | ||||
| Early luteal phase (0~1d) | 1.00 (ref) | 1.00 (ref) | ||
| Early-mid luteal phase (2~4d) | 0.444 (0.267, 0.739) | 0.02 | 0.584 (0.327, 1.042) | 0.068 |
| Mid-late luteal phase (≥5d) | 0.113 (0.056, 0.228) | <0.001 | 0.116 (0.049, 0.271) | <0.001* |
| Per-day increase | 0.650 (0.569, 0.741) | <0.001 | 0.670 (0.575, 0.782) | <0.001* |
*Significant difference (P < 0.05).
CI, confidence interval.
The variables in the adjusted model were adjusted for potential confounders: female age, BMI, AFC, FSH, LH, E2, T, menstrual cycle length, initial Gn dose.