Table 2.

The occurrence of RF according to type of oocyte and ovarian stimulation protocol

Ovarian stimulation protocol	RF(+) in matured MⅡ oocytes (95% CI)	RF(+) in delayed MⅡ oocytes (95% CI)	OR (95% CI)	P‐value
Total	21.4% (19.9‐22.9)	16.6% (12.4‐21.8)	0.73 (0.52‐1.04)	.073
Long	19.9% (17.3‐22.9)	16.9% (9.7‐27.8)	0.82 (0.42‐1.60)	.549
Short	26.1% (21.0‐31.9)	38.1% (20.8‐59.1)	1.74 (0.69‐4.39)	.250
Antagonist	18.1% (16.1‐20.4)	11.8% (7.1‐18.8)	0.60 (0.34‐1.07)	.067
Antagonist + AI	20.7% (16.4‐25.8)	8.7% (2.4‐26.8)	0.36 (0.08‐1.60)	.129
CC	36.8% (30.8‐43.1)	45.5% (21.3‐72.0)	1.43 (0.43‐4.84)	.564
AI	36.8% (23.4‐52.7)	0%	0	.182

Abbreviations: CI, confidence intervals; OR, odds ratio.