Independent variables affecting plasma clusterin concentration in stepwise multivariate analysis.

R2(coefficient of determination) for the model: 0.245. Multiple linear regression analysis was performed in 204 subjects. Data for HOMA-IR, TG/HDL-C, hsCRP, leptin, adiponectin, and RBP4 were log-transformed due to skewed distributions. In stepwise regression analysis, the independent variables tested initially were age, sex, smoking status, BMI, WHR, DBP, FPG, FPI, HOMA-IR, TC/HDL-C, TG/HDL-C, hsCRP, uric acid, ferritin, leptin, adiponectin, and RBP4 (abbreviations in Table 1 and 3). No combination with a strong correlation (R>0.9) was found among these variables after excluding HOMA-IR. Multiple regression analysis was performed among the remaining independent variables.§Logarithmic transformation was performed before analysis.