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Table 2 Strengths and Difficulties Questionnaire (SDQ) in the 10th grade by gender, type of track and completion of upper secondary school after 5 years

From: Mental health problems in the 10thgrade and non-completion of upper secondary school: the mediating role of grades in a population-based longitudinal study

  Boys Girls
Mental health Completers (3348) Non-completers (2082) Completers (4000) Non-completers (1380)
  Mean SD (95% CI) Mean SD (95% CI) Mean SD (95% CI) Mean SD (95% CI)
General tracks                 
  SDQ externalising 4.91 2.96 4.79 5.04 6.45 3.07 6.17 6.72* 5.04 2.64 4.94 5.14 6.81 3.15 6.49 7.14*
  SDQ internalising 3.08 2.56 2.97 3.19 3.72 2.90 3.46 3.98* 4.34 2.94 4.22 4.45 5.39 3.27 5.05 5.73*
Vocational tracks                 
  SDQ externalising 5.99 3.04 5.82 6.15 7.29 3.26 7.13 7.46* 6.03 2.82 5.88 6.18 7.58 3.11 7.38 7.78*
  SDQ internalising 3.40 2.57 3.26 3.54 3.87 2.93 3.73 4.02* 5.15 3.12 4.99 5.31 6.06 3.35 5.84 6.28*
  1. *Statistically significant difference between completers and non-completers, p0.001.