From: Sleeping problems in Chinese illicit drug dependent subjects
Variables | PSQI total score | ||||
---|---|---|---|---|---|
n | M ± SD | p | |||
Non users | Smoking | Yes | 895 | 4.38 ± 2.583 | 0.004 |
No | 1328 | 4.07 ± 2.378 | |||
Alcohol drinking | Yes | 686 | 4.57 ± 2.463 | <0.001 | |
No | 1535 | 4.03 ± 2.449 | |||
Drug users | Smoking | Yes | 2104 | 7.94 ± 4.427 | 0.01 |
No | 71 | 8.94 ± 3.112 | |||
Alcohol drinking | Yes | 758 | 6.99 ± 5.027 | <0.001 | |
No | 1413 | 8.51 ± 3.916 |