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| Study II N = 202 n (%) |
Study III N = 273 n (%) |
|
|---|---|---|
| Sex | ||
| Male | 111 (55) | 60 (22.0) |
| Female | 91 (45) | 213 (78.0) |
| Mean age (standard deviation) | 15.7 (1.2) | 19.9 (3.7) |
| Education | ||
| Junior high school | 116 (57.4) | 42 (15.4) |
| Senior high school | 86 (42.6) | 121 (44.3) |
| College/University | 0 | 110 (40.3) |
