Table 1 Demographic and clinical characteristics of participants
From: Time-dependent affective disturbances in abstinent patients with methylphenidate use disorder
Mean | Standard deviation | N | ||
|---|---|---|---|---|
Gender | 61: 10 females; 51 males | |||
Marriage | Single: 55; married: 2; divorced: 4 | |||
Education level | Primary:4; junior high:14; high:32; undergraduate:10; unclear:1 | |||
Occupation | Jobless: 22; self-employed: 2; farmer: 12; other: 24 | |||
Sites | Rural area:20; city: 41 | |||
Provence | Northeast: 51; Shandong:1; Shanxi:1; Tianjing:6; Wuhan:2 | |||
Sources of first use | Parents given:18; friends given: 19; themselves:24 | |||
Age (year) | 19.607 | 1.8910 | 61 | |
Addiction years | 4.410 | 2.8070 | 61 | |
Age of first use | 16.803 | 2.1257 | 61 | |
Daily dosage | 5.984 | 2.6863 | 61 | |
BMI | 23.288 | 2.2823 | 61 | |
DSM-5 | 9.426 | 0.8388 | 61 | |