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Table 1 Baseline characteristics of the study subjects

From: Differential relationship between waist circumference and mortality according to age, sex, and body mass index in Koreans with age of 30–90 years; a nationwide health insurance database study

  Men Women p value
(N = 4,845,863) (N = 3,950,896)
Age (years) 47.8 ± 12.2 51.6 ± 11.9 < 0.001
BMI (kg/m2) 24.2 ± 3.0 23.6 ± 3.2 < 0.001
WC (cm) 84.0 ± 7.6 77.4 ± 8.6 < 0.001
Systolic BP (mm Hg) 125.2 ± 14.4 121.3 ± 15.9 < 0.001
Diastolic BP (mm Hg) 78.4 ± 9.8 75.1 ± 10.2 < 0.001
Fasting glucose (mg/dL) 100.5 ± 26.8 96.5 ± 22.0 < 0.001
TC (mg/dL) 196.5 ± 41.3 199.5 ± 42.4 < 0.001
HDL-C (mg/dL) 53.3 ± 31.6 59.2 ± 34.8 < 0.001
LDL-C (mg/dL) 117.3 ± 135.9 121.0 ± 98.6 < 0.001
AST(IU) 28.0 ± 27.6 23.7 ± 22.2 < 0.001
ALT(IU) 30.3 ± 31.4 21.0 ± 23.1 < 0.001
Smoking history (%)
 Never 30.0   95.4   < 0.001
 Past 26.9   1.6   < 0.001
 Current 43.1   3.0   < 0.001
Alcohol (%)
 0 serving/week 32.9   78.4   < 0.001
 1–2 servings/week 44.6   18.2   < 0.001
 ≥ 3 servings/week 22.5   3.4   < 0.001
Exercise (%)
 0 session/week 51.3   63.2   < 0.001
 1–2 sessions/week 28.4   18.5   < 0.001
 ≥ 3 sessions/week 20.3   18.3   < 0.001
Charlson Comorbidity Index score: 0 (%) 22.9   13.0   < 0.001
  1. Data are expressed as the mean ± SD or percentage. p values were calculated by an independent two-sample t test or Pearson’s chi-square test. For Charlson Comorbidity Index score, 0 means that the subject is without any comorbidity
  2. BMI body mass index, WC waist circumference, BP blood pressure, TC total cholesterol, HDL-C high-density lipoprotein cholesterol, LDL-C low-density lipoprotein cholesterol, AST aspartate aminotransferase, ALT alanine aminotransferase