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. 2021 May 28;7:12. doi: 10.1186/s40738-021-00104-8

Table 4.

The association between trigger type and pregnancy outcomes in fresh autologous embryo transfer cycles.

	Trigger Type
	hCG trigger (ref) (N = 525) n (%)	Dual trigger (N = 438) n (%)	Adjusted RR^a (95% CI)
Pregnancy	328 (62.5%)	264 (60.3%)	0.95 (0.86, 1.06)
Clinical pregnancy	277 (52.8%)	190 (43.4%)	0.80 (0.70, 0.91)
Ongoing pregnancy	246 (46.9%)	151 (34.5%)	0.72 (0.61, 0.85)
Live birth	240 (45.8%)	146 (33.4%)	0.71 (0.60, 0.84)

^aModel adjusted for maternal age at retrieval, ovarian diagnosis, AMH, and number of embryos transferred.