Table A1.
Distribution of demographic characteristics between included and excluded volunteers.
| Demographic Characteristics | Included | Excluded | p Value |
|---|---|---|---|
| N = 471 | N = 55 | ||
| Age (Years) mean ± SD | 30.8 ± 4.1 | 31.1 ± 3.5 | 0.69 |
| BMI (Kg·m−2) mean ± SD | 24.0 ± 3.1 | 24.0 ± 3.3 | 0.93 |
| Education (Years) | 0.91 | ||
| ≤15 | 129 (27.4%) | 13 (23.6%) | |
| 16 | 232 (49.3%) | 30 (54.5%) | |
| ≥17 | 110 (23.4%) | 12 (21.8%) | |
| Income (¥104/y) | 0.97 | ||
| <10 | 161 (34.2%) | 19 (34.5%) | |
| 10–30 | 234 (49.7%) | 28 (50.9%) | |
| >30 | 42 (8.9%) | 5 (9.1%) | |
| Refuse to answer | 30 (7.2%) | 3 (5.5%) | |
| Current Smoking (No./day) | 0.11 | ||
| 0 | 361 (76.6%) | 44 (80.0%) | |
| 1–10 | 83 (17.7%) | 5 (9.1%) | |
| >10 | 27 (5.7%) | 6 (10.9%) | |
| Drinking a | 0.83 | ||
| Never | 164 (34.8%) | 20 (36.4%) | |
| Seldom | 281 (59.7%) | 33 (60.0%) | |
| Frequent | 26 (5.5%) | 2 (3.6%) | |
| Abstinence time (days) | 0.99 | ||
| ≤3 | 138 (29.4%) | 12 (30.0%) | |
| >3, ≤5 | 154 (32.8%) | 13 (32.5%) | |
| >5 | 178 (37.9%) | 15 (37.5%) |
a Drinking status definition: Never (<1/month), Seldom (≥1/month, <1/week), Frequent (≥1/week).