Table 3.

Hierarchical analysis of the pregnancy outcomes basing on age between the patients with or without the premature LH rise.

	No of oocytes retrieved		No. of 2PN		No. of available embryos		No. of high-quality embryos		Cumulative live birth rate
	β (95% CI)	p	β (95% CI)	p	β (95% CI)	p	β (95% CI)	p	β (95% CI)	p
<37 y	-0.66 (-2.17, 0.85)	0.39	-0.23 (-1.52, 1.06)	0.72	0.07 (-0.25, 0.40)	0.66	-0.08 (-0.37, 0.19)	0.53	1.30 (0.75–2.26)	0.35
≥37 y	-1.10 (-3.04, 0.84)	0.27	-0.59 (-2.27, 1.09)	0.49	0.01 (-0.48, 0.50)	0.96	-0.13 (-0.62, 0.35)	0.58	0.20 (0.05–0.88)	0.03