Table 1. Oocyte maturity with respect to serum b-hCG day after trigger.

	Serum bhCG (mIU/mL)				p value
	20–30 (n = 21)	30–40 (n = 75)	40–50 (n = 123)	>50 (n = 10,003)
% oocyte maturity	67.8 ± 23.2	71.4 ± 23.6	73.3 ± 18.7	78.9 ± 18.5	0.008