Table 1—

Baseline characteristics of diabetic and nondiabetic subjects

CharacteristicNondiabetic subjects (n = 1043)Diabetic subjects (n = 269)All subjects (n = 1,312)P
Male939 (90)218 (81)1,157 (88)<0.0001
Age (years)65.7 ± 7.866.4 ± 7.465.9 ± 7.70.18
BMI27.4 ± 4.528.8 ± 4.927.7 ± 4.6<0.0001
Smoking history
 Current smoker284 (27)68 (25)352 (27)0.41
 Former smoker535 (51)150 (56)685 (52)
 Non smoker224 (22)51 (19)275 (21)
Alcohol usage656 (64)104 (39)760 (59)<0.0001
Exercise regularly676 (69)170 (64)846 (68)0.17
Systolic blood pressure (mmHg)141.0 ± 19.8145.1 ± 21.3141.9 ± 20.20.003
Cholesterol (mmol/l)6.00 ± 1.075.71 ± 1.305.94 ± 1.130.0009
HDL cholesterol (mmol/l)1.20 ± 0.411.05 ± 0.361.17 ± 0.41<0.0001
Triglycerides (mmol/l)1.94 ± 1.412.42 ± 2.492.04 ± 1.700.002
Calcium score47.7 (0.00, 254.2)104.7 (9.4, 433.3)57.8 (0.00, 285.1)<0.0001
  • Data are n (%) or mean ± SD, unless otherwise indicated. Calcium score expressed as median (25th, 75th quartile). Statistical testing used two-sample t tests (for continuous variables), χ2 tests (for discrete variables), and the Wilcoxon rank-sum test for the calcium score. The Welch t test was used for variables with unequal variance (cholesterol, HDL cholesterol, triglycerides). To convert cholesterol values to mg/dl, multiply by 38.6; for triglycerides, multiply by 88.5.