borderline significantP =0.06
Subgroup univariable regression analysis based on sex revealed that elevated serum homocysteine levels are a significant predictor of CMED in males (OR, 1.50 [1.02–2.20]; P =0.04) and borderline significant in females (OR, 1.36 [0.98–1.89]; P =0.06; P interaction =0.71).