Multiple linear regression analysis of variables including serum bilirubin for carotid intima-media thickness within each gender.

β, standardized coefficient; R2, multiple coefficient of determination. Model 1, forced entry method and Model 2, forward stepwise method. Data for triglycerides, fasting plasma glucose, alanine aminotransferase, gamma-glutamyltransferase, and serum bilirubin were skewed and log-transformed for analysis.
Multiple linear regression analysis of variables including serum bilirubin for carotid intima-media thickness within each gender.

β为标准化回归系数（standardized coefficient），R²为多重决定系数（multiple coefficient of determination）。模型1采用强制进入法（forced entry method），模型2采用向前逐步回归法（forward stepwise method）。甘油三酯、空腹血糖、丙氨酸氨基转移酶（alanine aminotransferase）、γ-谷氨酰转移酶（gamma-glutamyltransferase）与血清胆红素（serum bilirubin）的数据呈偏态分布，经对数变换后用于分析。
针对各性别亚组，开展纳入血清胆红素变量的颈动脉内膜中层厚度多重线性回归分析。