Table 1 Basic characteristics of the study participants by sex
From: AHRR cg05575921 methylation in relation to smoking and PM2.5 exposure among Taiwanese men and women
Variable | Men (n = 488) | Women (n = 460) | P value |
|---|---|---|---|
AHRR cg05575921 (beta-value) | 0.7832 ± 0.0042 | 0.8376 ± 0.0023 | < 0.0001 |
F2RL3 cg03636183 (beta-value) | 0.6334 ± 0.0025 | 0.6514 ± 0.0016 | < 0.0001 |
Smoking status |  |  | < 0.0001 |
 Never | 279 (57.17%) | 429 (93.26%) |  |
 Former | 117 (23.98%) | 18 (3.91%) |  |
 Current | 92 (18.85%) | 13 (2.83%) |  |
Area/PM2.5 levels (μg/m3) |  |  | 0.7115 |
 North/26.53 | 163 (33.40%) | 167 (36.30%) |  |
 North-center/30.06 | 81 (16.60%) | 80 (17.39%) |  |
 Center/36.91 | 102 (20.90%) | 87 (18.91%) |  |
 South/40.68 | 142 (29.10%) | 126 (27.39%) |  |
Exercise | Â | Â | 0.6106 |
 No | 271 (55.53%) | 263 (57.17%) |  |
 Yes | 217 (44.47%) | 197 (42.83%) |  |
Age (years) | 50.1004 ± 0.5173 | 49.3391 ± 0.5108 | 0.2959 |
BMI (Kg/m2) | 25.0637 ± 0.1507 | 23.5313 ± 0.1702 | < 0.0001 |
Alcohol drinking |  |  | < 0.0001 |
 No | 396 (81.15%) | 452 (98.26%) |  |
 Former | 32 (6.56%) | 4 (0.87%) |  |
 Current | 60 (12.30%) | 4 (0.87%) |  |
Secondhand smoke exposure | Â | Â | 0.3259 |
 No | 426 (87.30%) | 411 (89.35%) |  |
 Yes | 62 (12.70%) | 49 (10.65%) |  |