Table 3 Emotional and behavioural difficulties, suicidal ideation and suicide attempt by migration backgrounda
Non-migrants (n=9018)First-generation migrants (European origin) (n=428)Second-generation migrants (European origin) (n=887)First-generation migrants (non-European origin) (n=230)Second- generation migrants (non-European origin) (n=355)P: overall group differences
SDQ Total Difficulties Score, mean (95% CI)10.39 (10.28–10.49)10.76 (10.30–11.28)10.63 (10.30–10.98)12.69 (12.05–13.33)11.90 (11.37–12.46)<0.0005
SDQ Emotional Score, mean (95% CI)2.8 (2.75–2.85)2.83 (2.60–3.06)2.90 (2.77–3.04)3.31 (3.02–3.62)3.15 (2.91–3.38)<0.0005
SDQ Hyperactivity/inattention Score, mean (95% CI)3.58 (3.54–3.62)3.73 (3.51–3.94)3.58 (3.45–3.73)4.34 (4.03–4.62)3.97 (3.73–4.24)<0.0005
SDQ Conduct Score, mean (95% CI)2.3 (2.27–2.33)2.39 (2.23–2.55)2.38 (2.28–2.49)2.52 (2.33–2.72)2.74 (2.54–2.93)<0.0005
SDQ Peer Problems Score, mean (95% CI)1.71 (1.67–1.74)1.80 (1.66–1.98)1.77 (1.67–1.87)2.53 (2.30–2.75)2.04 (1.88–2.21)<0.0005
SDQ Pro-social Score, mean (95% CI)7.46 (7.42–7.50)7.48 (7.29–7.76)7.63 (7.51–7.74)7.38 (7.13–7.63)7.69 (7.49–7.90)0.013
Serious suicidal ideation, n (%)289 (3.2)24 (5.7)30 (3.4)15 (6.7)34 (9.6)<0.0005
Suicide attempt (lifetime history) n (%)276 (3.1)29 (6.9)27 (3.1)20 (9.0)25 (7.1)<0.0005
  • SDQ, Strengths and Difficulties Questionnaire.

  • a Confidence intervals based on bootstrapping (1000 samples).

  • Tukey’s post hoc comparisons: the only significant differences between the subgroups in terms of SDQ scores were for peer problems, with first-generation European and first-generation non-European migrants differing from non-migrants (Tukey’s post hoc comparisons, P=0.047 and P=0.035 respectively).

  • No significant differences between migrant groups.