Characteristics of study subjects according to the presence or absence of diabetes.

Data are expressed as means ± S.D.*Data are expressed as median (1st quartile, 3rd quartile). P values are from the t-test using logarithmic transformed values due to skewed distribution.†Regular: ≥3 times/week, ≥30 minutes per session; light: Abbreviations: HOMA-IR, homeostasis model assessment of insulin resistance; NAFLD, non-alcoholic fatty liver disease; LAI, liver attenuation index; 25(OH)D, serum 25-hydroxyvitamin D.数据以均值±标准差（S.D.）表示。*数据以中位数（第1四分位数、第3四分位数）形式呈现。由于数据分布呈偏态，P值通过对经对数转换后的数值进行t检验计算得到。†运动定义如下：规律运动：每周≥3次，每次≥30分钟；轻量运动： 缩写说明：HOMA-IR（homeostasis model assessment of insulin resistance，胰岛素抵抗稳态模型评估）；NAFLD（non-alcoholic fatty liver disease，非酒精性脂肪性肝病）；LAI（liver attenuation index，肝脏衰减指数）；25(OH)D（serum 25-hydroxyvitamin D，血清25-羟维生素D）。