Table 1.
Demographic, socioeconomic and genetic characteristics of participants according to their groups of alcohol use (N = 476).
| Pooled N = 476 (100%) |
Groups by alcohol use | ||||
|---|---|---|---|---|---|
| Never drinkers N = 184 (38.7%) |
Former drinkers N = 76 (16.0%) |
Moderate drinkers N = 165 (34.7%) |
Heavy drinkers N = 51 (10.7%) |
||
| % or mean (SD) | % or mean (SD) | % or mean (SD) | % or mean (SD) | % or mean (SD) | |
| Age | 49.4 (11.6) | 50.0 (11.4) | 51.5 (13.6) | 47.7 (10.6) | 50.0 (12.3) |
| Gender | |||||
| Male | 74.0% | 48.7% | 86.6% | 89.0% | 100.0% |
| Female | 26.0% | 51.3% | 13.4% | 11.0% | 0.0% |
| Drinking times during the past 30 days | 4.7 (6.4) | 0.0 (0.0) | 0.0 (0.0) | 8.8 (5.8) | 14.9 (2.3) |
| Weekly ethanol consumption (g) | 62.2 (113.7) | 0.0 (0.0) | 0.0 (0.0) | 71.6 (55.0) | 347.9 (96.0) |
| Depression or not | |||||
| Yes | 9.0% | 16.7% | 10.4% | 2.1% | 2.2% |
| No | 91.0% | 83.3% | 89.6% | 97.9% | 97.8% |
| Years of schooling | 8.2 (3.5) | 7.8 (3.9) | 7.9 (3.4) | 8.8 (3.1) | 8.8 (2.9) |
| Annual earnings (in 10,000 CNY) | 7.0 (10.8) | 6.1 (8.8) | 6.7 (8.2) | 8.2 (13.9) | 6.7 (9.1) |
| Smoking or not | |||||
| Yes | 38.3% | 18.5% | 40.3% | 52.1% | 62.2% |
| No | 61.7% | 81.5% | 59.7% | 47.9% | 37.8% |
| No. of parents that drink | |||||
| 0 | 19.8% | 26.5% | 22.4% | 12.3% | 15.6% |
| 1 | 65.0% | 59.3% | 59.7% | 72.6% | 68.9% |
| 2 | 15.2% | 14.2% | 17.9% | 15.1% | 15.5% |
| ALDH2 rs671 (no. of effect alleles) | |||||
| AA (2): | 4.5% | 11.1% | 1.5% | 0.0% | 0.0% |
| AG (1): | 31.0% | 41.4% | 46.3% | 17.8% | 13.3% |
| GG (0): | 64.5% | 47.5% | 52.2% | 82.2% | 86.7% |
| ADH1B rs1229984 (no. of effect alleles) | |||||
| AA (2): | 42.4% | 47.5% | 40.3% | 39.0% | 37.8% |
| AG (1): | 44.8% | 39.5% | 41.8% | 52.1% | 44.4% |
| GG (0): | 12.9% | 13.0% | 17.9% | 8.9% | 17.8% |
| Ancestral composition | |||||
| Northern Han | 49.9% | 48.9% | 43.7% | 53.1% | 52.7% |
| Southern Han | 19.0% | 21.2% | 21.3% | 16.9% | 14.5% |
| Mongolian | 10.0% | 8.3% | 11.9% | 10.4% | 12.1% |
| Japanese | 2.5% | 2.5% | 2.2% | 2.8% | 2.2% |
| Province | |||||
| Heilongjiang | 94 | 34 | 10 | 35 | 15 |
| Henan | 22 | 8 | 5 | 7 | 2 |
| Zhejiang | 41 | 18 | 6 | 12 | 5 |
| Yunnan | 182 | 78 | 33 | 54 | 17 |
| Xinjiang | 52 | 13 | 11 | 26 | 2 |
| Shandong | 16 | 7 | 1 | 6 | 2 |
| Anhui | 69 | 26 | 10 | 25 | 8 |