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Table 3 Sleeping quality for difference types of drug users

From: Sleeping problems in Chinese illicit drug dependent subjects

Drugs of users

n,%

PSQI total score, M ± SD

PSQI > 5

PSQI > 8

n,%

n,%

heroin

1012, 46.5%

9.18 ± 4.047

812, 80.24%

559, 55.24%

“ice”

962, 44.2%

6.60 ± 4.476

521, 54.16%

314, 32.64%

ketamine

172, 7.9%

8.75 ± 3.762

141, 81.98%

79, 45.93%

others

32, 1.5%

7.03 ± 3.478

19, 59.36%

7, 21.88%

  1. M: mean; SD: standard deviation; n: number; %: the percentage of subjects. “ice”: methamphetamine.