Table 1 Demographic, cigarette smoking and alcohol drinking characteristic of participants
From: Sleeping problems in Chinese illicit drug dependent subjects
| Â | 2178 Drug users | 2236 Nondrug users | |
|---|---|---|---|
Age, M ± SD | 30.04 ± 7.134 | 30.58 ± 11.145 | |
Educational levels, M ± SD* | 10.63 ± 2.975 | 12.10 ± 3.225 | |
Gender (n, %) | Male | 1875, 86.1% | 1910, 85.4% |
Female | 303, 13.9% | 326, 14.6% | |
Ethnicity (n, %) | Han Chinese | 2149, 98.8% | 2156, 96.5% |
Minorities | 26, 1.2% | 79, 3.5% | |
Employment status (n, %) | Employed | 1214, 56.0% | 1360,61.1% |
Unemployed | 953, 44.0% | 866, 38.9% | |
Marital status (n, %) | Married | 942, 43.3% | 1136, 51.5% |
Unmarried | 1227, 56.6% | 1071, 48.5% | |
Cigarette smoking (n, %) | Smokers | 2104, 96.7% | 895, 40.3% |
Nonsmokers | 71, 3.3% | 1328, 59.7% | |
Alcohol drinking (n, %) | Drinkers | 758, 34.9% | 686, 30.9% |
Nondrinkers | 1413, 65.1% | 1535, 69.1% | |