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Table 1 Indications of mental health problems at one-year follow-up. The data are presented as percentages. Gender differences were tested using a Chi2 test (ns = not significant)

From: Adolescents with substance use problems in outpatient treatment: a one-year prospective follow-up study focusing on mental health and gender differences

  Total (%) Girls (%) Boys (%) Cramér’s V
  N = 455 n = 133 n = 322  
Indications of mental health problems 42 55 37 0.168***
Outpatient treatment, psychiatry 30 41 25 0.164***
In-patient treatment, psychiatry 6 8 6 ns
Medical treatment, mental illness 31 42 26 0.154***
  1. *p < 0.05
  2. **p < 0.01
  3. ***padj < 0.05