Table 1.
Demographic Characteristics of the Study Subjects
| Variables | Smokers (n = 75) | Nonsmokers (n = 73) | P |
|---|---|---|---|
| Age (years) | 36 ± 8 | 34 ± 7 | 0.1 |
| Gender (females/males) | 40/35 | 45/28 | 0.2 |
| Body mass index (kg/m2) | 20.5 ± 1.6 | 20.8 ± 1.6 | 0.3 |
| Duration of smoking (years) | 7 ± 5 | ‐ | ‐ |
| Number of cigarettes/day | 26 ± 7 | ‐ | ‐ |
| Systolic blood pressure (mmHg) | 128 ± 6 | 116 ± 9 | <0.001 |
| Diastolic blood pressure (mmHg) | 80 ± 5 | 73 ± 5 | <0.001 |
| Mean heart rate | 79 ± 9 | 76 ± 11 | <0.001 |
| Ventricular premature contraction/day | 336 ± 324 | 36 ± 5 | <0.001 |
| NT‐pro‐BNP | 70 ± 16 | 36 ± 20 | <0.001 |
NT‐pro‐BNP = N‐Terminal‐ pro‐B‐type natriuretic peptide (pg/mL).