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Table 6 The effect of a 2-point change in the SDQ subscales on non-completion of upper secondary school, and the mediating effect of grades

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

  Model 1a Model 2b Model 3c
  Total effect Proportion via mediation Total effect Proportion via mediation Total effect Proportion via mediation
  Estimate 95% CI Estimate 95% CI Estimate 95% CI Estimate 95% CI Estimate 95% CI Estimate 95% CI
Boys                   
SDQ externalising 0.068 0.059 0.077 0.702 0.611 0.801 0.069 0.060 0.079 0.714 0.629 0.813 0.047 0.038 0.058 0.831 0.692 1.032
SDQ internalising 0.021 0.010 0.031 0.540 0.324 0.938* −0.00056 −0.010 0.010 0.428 −12.90 14.00 0.0031 −0.006 0.013 −0.740 −14.20 22.90*
Girls                   
SDQ externalising 0.067 0.057 0.077 0.716 0.628 0.833* 0.063 0.053 0.073 0.732 0.624 0.860* 0.044 0.033 0.055 0.755 0.610 0.976*
SDQ internalising 0.031 0.023 0.039 0.622 0.488 0.823* 0.012 0.005 0.020 0.412 0.185 0.952* 0.012 0.005 0.020 0.310 0.108 0.687*
  1. aModel 1: Adjusted for ethnic background, county of residence, parents education, income and marital status.
  2. bModel 2: SDQ externalising and SDQ internalising adjusted for each other, and for ethnic background, county of residence, parents education, income and marital status.
  3. cModel 3: Like model 2, in addition adjusted for physical activity, smoke and alcohol habits.
  4. *Direct effect statistically significant (p < 0.05).
  5. The total effect estimate is the change in the probability of non-completion.