ALB and premature menopause: Multivariate analysis showed that IMM classification grade III (OR 1.572, 95% CI 1.125–2.197, p = 0.008), CCI score > 3 (OR 1.872, 95% CI 1.325–2.645, p < 0.001), and serum albumin < 3.2 g/dL (OR 3.236, 95% CI 1.174–8.918, p = 0.023) were independent risk factors related to POF.