Impact of trigger-day serum luteinizing hormone levels on embryo quality and pregnancy outcomes in overweight and obese women undergoing GnRH antagonist protocols: a retrospective cohort study.

In contrast, although the prevalence of PCOS in the obese cohort appeared to vary across the low-, medium-, and high-LH groups (27.9%, 35.5%, and 47.9%, respectively), this distribution did not reach statistical significance (P = 0.129), suggesting that different pathophysiological mechanisms operate at these distinct ends of the BMI spectrum.

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