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Table 1 Characteristics of the study population by migrant background

From: The association between persistent low parental income during preschool age and mental disorder in adolescence and early adulthood: a Norwegian register-based study of migrants and non-migrants

  Total Migrant background Region of origin
   Majority Migrants Non-EU Eastern Europe Middle East/ North Africa Sub-Saharan Africa South Asia East/South East Asia Western countries
N (%) 577,072 550,108 (95.3) 26,964 (4.7) 3,497 (0.6) 6,148 (1.1) 2,607 (0.5) 8,261 (1.4) 4,119 (0.7) 2,332 (0.4)
% of migrants    13.0 22.8 9.7 30.6 15.3 8.6
Age     a a a ns a a
Mean (SD) 1 20.0 (2.9) 20.0 (2.9) 19.8 (2.8) 19.8 (2.7) 19.5 (2.8) 19.3 (2.7) 19.9 (2.9) 20.2 (2.9) 19.6 (2.9)
Gender2     ns ns ns ns ns ns
Man 51.4 51.4 51.2 51.1 51.6 50.9 50.7 51.7 51.8
Woman 48.6 48.6 48.8 48.9 48.4 49.1 49.3 48.3 48.2
OPMH 3 service use 2    a a a a a b
Yes 15.4 15.7 9.2 8.0 11.7 8.0 7.7 8.0 12.9
PLI 4 at age 3–5 2   a a a a a a
Yes 6.8 5.5 32.4 38.7 44.2 25.6 30.3 25.9 18.2
PLI 4 at age 6–8 2   a a a a a a
Yes 6.3 5.2 29.1 24.6 42.7 25.9 29.5 21.0 16.4
PLI 4 at age 9–11 2   a a a a a a
Yes 6.5 5.3 30.4 21.4 44.5 31.8 31.9 21.5 16.1
PLI 4 at age 12–14 2   a a a a a a
Yes 6.8 5.6 32.8 23.6 48.3 37.5 32.7 23.9 15.9
Parental education 2    a a a a a a
Compulsory or lower 7.8 6.8 29.1 14.1 37.5 22.8 36.3 31.9 6.0
Upper-secondary 44.0 44.4 35.5 47.4 30.2 39.4 34.4 40.8 22.4
Tertiary 40.1 48.8 33.1 36.6 29.2 36.2 26.7 26.4 69.5
Unknown 0.1 0.0 2.2 1.9 3.0 1.7 2.7 0.9 2.1
  1. 1Measured last year observed in the study; 2%; 3 OPMH – outpatient mental healthcare; 4 PLI—persistent low parental income; P-values: a < 0.001; b < 0.01; c < 0.05; ns non-significant