Associations of baseline characteristics with retinol binding protein 4 concentrations.

Data were analyzed in mixed regression models in which sex and race, age at study time and race, age at study time and sex, and all 3 demographic characteristics were adjusted for in the 1st and 2nd, 3rd, 4th and the remaining models, respectively. Significant associations are shown in bold type. RA  =  rheumatoid arthritis, CDAI  =  Clinical Disease Activity Score.
*Logarithmically transformed variables.

本研究采用混合回归模型（mixed regression models）进行数据分析，其中性别与种族、入组时年龄与种族、入组时年龄与性别、全部3项人口学特征这四组校正变量，分别对应第1、2个模型，第3个模型，第4个模型以及其余模型。具有统计学意义的关联以粗体形式标注。RA=类风湿关节炎（rheumatoid arthritis），CDAI=临床疾病活动度评分（Clinical Disease Activity Score）。*经对数变换的变量。