ALB and heart disorder: Multiple regression analyses, accounting for significant variables in univariate analysis (age, history of drinking, CKD, cardiac diseases, waist circumference, RBC, albumin to globulin ratio [AGR], and eGFR) and the RDW category, showed that higher age was independently associated with an increased risk of frailty among older adults (odds ratio [OR] 1.091, 95% confidence interval [CI] 1.054–1.129), while higher waist circumference (OR 0.962, 95% CI 0.937–0.989) and higher RBC levels (OR 0.37, 95% CI 0.229–0.598) correlated with a lower probability (original model; Table 3).