Baseline characteristics of gender-specific groups classified by body mass index in males.

Male Group 1 (underweight), BMI < 18.5 kg/m2; Group 2 (low normal BMI), 18.5 kg/m2 ≤ BMI < 22 kg/m2; Group 3 (high normal BMI), 22 kg/m2 ≤ BMI < 25 kg/m2; Group 4 (overweight), 25 kg/m2 ≤ BMI. Values are presented as mean±SD. Abbreviations: BMI, body mass index; eGFR, estimated glomerular filtration rate; hypertension, history of hypertension; dyslipidemia, history of dyslipidemia; CVD, history of cardiovascular disease; smoking, currently smoking. Baseline characteristics of gender-specific groups classified by body mass index in males.