Higher serum LDL‐C/apoB ratios were associated with a lower HR of coexisting T2D‐CHD [extreme‐quartile multivariate‐adjusted HRs 0.50 (95% CI, 0.28–0.90 p for trend = 0.030] (Model 2, Table 3). The gene discussed is APOB; the disease is type 2 diabetes mellitus.