Lg (NGAL) was positively correlated with ARC value, after adjusting for age and sex(R = 0.550, P = 0.015), adjusting for age, sex and CHD(R = 0.565, P = 0.015), adjusting for age, sex, CHD and Alb(R = 0.536, P = 0.027), or adjusting for age, sex, CHD, Alb, and dialyzer membrane (polysulfone)(R = 0.590, P = 0.016); however, when adjusting for age, sex, CHD, Alb, and Ca, the correlation between lg (NGAL) and ARC value disappeared. Here, LCN2 is linked to coronary artery disorder.