Fig. 4

Unadjusted and adjusted HRs and 95% CIs for the primary end point (long-term all-cause mortality) of the LDL-C < 1.8 mmol/L group vs. LDL-C ≥ 1.8 mmol/L group in CAD patients. Model 1: Unadjusted model. Model 2: Adjusted for age ≥ 75 years, sex and comorbidities including AMI, diabetes mellitus, hypertension, atrial fibrillation, COPD, CHF, CKD and anaemia. Model 3: Adjusted for malnutrition. Model 4: Adjusted for all covariates: age ≥ 75 years, sex and comorbidities including AMI, diabetes mellitus, hypertension, atrial fibrillation, COPD, CHF, CKD, anaemia and malnutrition