Characteristics of subjects by age group
| Variable | Age group (y) | P-value | |||
|---|---|---|---|---|---|
| <20 | 20–29 | 30–39 | ≥40 | ||
| Exercise (yes) | 71 (29.8) | 122 (25.1) | 26 (15.4) | 65 (29.0) | 0.050 |
| Drinking (yes) | 163 (68.5) | 307 (63.0) | 93 (55.0) | 13 (50.4) | <0.001 |
| BMI (kg/m2) | 20.49±3.83 | 20.60±3.41 | 20.85±3.42 | 22.25±6.28 | <0.001 |
| WC (inch) | 27.30±3.58 | 27.60±3.61 | 29.69±19.68 | 28.78±3.92 | 0.010 |
| Cigarettes smoked per day | 11.57±8.59 | 9.44±5.65 | 10.02±5.93 | 9.73±7.22 | 0.001 |
| Total smoking period | 2.57±2.01 | 5.92±3.88 | 13.66±4.86 | 20.70±10.60 | <0.001 |
| Pack years | 1.56±1.70 | 3.08±2.91 | 7.18±5.92 | 11.19±11.42 | <0.001 |
| Age at which first cigarette was smoked | 15.47±2.34 | 17.95±2.94 | 20.93±4.77 | 29.02±9.97 | <0.001 |
| FTND scores | 3.17±2.46 | 3.00±2.33 | 2.99±2.25 | 3.13±2.34 | 0.770 |
| CO (ppm) | 6.20±6.90 | 8.38±7.49 | 9.66±7.82 | 8.06±8.26 | <0.001 |
| Importance | 6.74±2.27 | 7.17±2.18 | 7.21±2.19 | 7.70±2.24 | 0.002 |
| Confidence | 5.53±2.46 | 5.80±2.35 | 5.80±2.16 | 6.27±2.33 | 0.049 |
| NRT | 58 (24.4) | 204 (41.9) | 76 (45.0) | 74 (33.0) | <0.001 |
| Number of counseling sessions | 3.62±3.24 | 3.88±3.82 | 4.34±4.42 | 6.22±5.87 | <0.001 |
| Smoking abstinence prevalence rates | |||||
| 4 weeks | 41 (17.2) | 162 (33.3) | 59 (34.9) | 97 (43.3) | <0.001 |
| 12 weeks | 31 (13.0) | 127 (26.1) | 37 (21.9) | 81 (36.2) | <0.001 |
| 6 months | 21 (8.8) | 66 (13.6) | 20 (11.8) | 59 (26.3) | <0.001 |
Values are presented as number (%) or mean±standard deviation.
BMI, body mass index; WC, waist circumference; FTND, Fagerström Test for Nicotine Dependence; CO, carbon monoxide; NRT, nicotine replacement therapy.
P-values from χ2 test or ANOVA test.