Table 1 Baseline characteristics of the study population
Characteristic | Smokers (n = 36) | Electronic cigarette users (n = 40) | P-value |
|---|---|---|---|
Males n (%) | 32 (88.9) | 36 (90) | 1.000a |
Age (years) | 36 ± 5 | 35 ± 5 | 0.764 |
Body mass index (kg/m2) | 24.8 ± 2.3 | 25.3 ± 2.4 | 0.304 |
Body surface area (m2) | 2.03 ± 0.15 | 2.00 ± 0.18 | 0.322 |
Smoking duration (years) | 16 ± 5 | 17 ± 5 | 0.571 |
Cigarette consumption (n/d)b | 20 (20–26) | 30 (20–35) | 0.004c |
Brinkman index | 371 ± 132 | 493 ± 228 | 0.005 |
Electronic cigarette use durationd | 6 ± 4 | ||
Systolic BP (mmHg) | 123.0 ± 9.8 | 123.9 ± 8.6 | 0.653 |
Diastolic BP (mmHg) | 75.8 ± 5.6 | 75.6 ± 6.1 | 0.834 |
Heart rate (beats/m) | 67.5 ± 7.9 | 67.1 ± 10.3 | 0.841 |
Pressure-rate product | 8308 ± 1235 | 8312 ± 1363 | 0.989 |
Glucose (mmol/l) | 4.51 ± 0.34 | 4.44 ± 0.35 | 0.410 |
Total cholesterol (mmol/l) | 4.85 ± 0.21 | 4.77 ± 0.30 | 0.177 |
LDL cholesterol (mmol/l) | 2.99 ± 0.23 | 2.91 ± 0.26 | 0.175 |
HDL cholesterol (mmol/l) | 1.38 ± 0.15 | 1.38 ± 0.18 | 0.943 |
Triglycerides (mmol/l) | 1.05 ± 0.14 | 1.04 ± 0.18 | 0.693 |
Ejection fraction (%) | 63 ± 5 | 62 ± 4 | 0.463 |
LA diameter (mm) | 35 ± 4 | 34 ± 3 | 0.359 |
LV mass index (g/m2) | 64 ± 10 | 65 ± 13 | 0.663 |