PLOD1 and Infertility: In patients aged <35 years, the >75th basal LH quartile was significantly associated with higher CPR (adjusted OR 1.885, 95% CI 1.267-2.803, P = 0.002) and higher LBR ((adjusted OR 1.702, 95% CI 1.146-2.529, P = 0.008) compared with the <25th quartile, after adjusting for age, body mass index, infertility cause, ovarian reserve markers, stimulation protocol, and embryo quality.