Table 1 Demographic and phenotypic characteristics of Jincheng and Taiyuan samples.
Characteristic | Jincheng | Taiyuan | Total |
|---|---|---|---|
Sample size | 2,848 | 2,207 | 5,055 |
Smoking rate (%) | 51.4 | 52.2 | 51.7 |
FTND in smokers only (SD) | 5.14 (1.42) | 5.83 (1.30) | 5.45 (1.41) |
Age, years (SD) | 36.4 (9.6) | 41.8 (10.6) | 38.8 (10.4) |
BMI (SD) | 24.4 (3.1) | 24.0 (3.2) | 24.2 (3.1) |
Years of working (SD) | 11.1 (9.2) | 14.3 (12.1) | 12.5 (10.7) |
No. of smoking family member (SD) | 1.7 (0.7) | 1.8 (0.9) | 1.8 (0.8) |
