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Table 3 Maternal and paternal region of birth by childhood autism in cases and controls

From: The risk of childhood autism among second-generation migrants in Finland: a case–control study

  Cases Controls OR (95% CI) p AdjustedaOR (95% CI) p
  n % n %     
Mothers         
Finnish 1 058 93.9 4 340 96.2 Ref.   Ref.  
Western countries 10 0.9 29 0.6 1.4 (0.7-2.9) 0.36 1.4 (0.7-2.9) 0.37
Former Soviet Union and former Yugoslavia 29 2.6 65 1.4 1.8 (1.2-2.8) 0.008 1.8 (1.2-2.9) 0.007
Sub-Saharan Africa 10 0.9 36 0.8 1.2 (0.6-2.4) 0.68 1.2 (0.6-2.6) 0.57
North Africa, Middle East 2 0.2 14 0.3 0.6 (0.1-2.6) 0.49 0.6 (0.1-2.7) 0.50
Asia 18 1.6 28 0.6 2.6 (1.4-4.7) 0.002 2.6 (1.4-4.7) 0.002
Fathers         
Finnish 1 069 94.9 4 344 96.3 Ref.   Ref.  
Western countries 8 0.7 43 1.0 0.7 (0.4-1.6) 0.46 0.7 (0.4-1.6) 0.45
Former Soviet Union and former Yugoslavia 15 1.3 35 0.8 1.7 (0.95-3.2) 0.07 1.8 (0.97-3.3) 0.06
Sub-Saharan Africa 13 1.2 38 0.8 1.4 (0.7-2.8) 0.29 1.5 (0.8-3.0) 0.21
North Africa, Middle East 9 0.8 38 0.8 1.0 (0.5-2.0) 0.90 1.0 (0.5-2.1) 0.98
Asia 13 1.2 12 0.3 4.4 (2.0-9.6) <0.001 4.4 (2.0-9.5) <0.001
  1. aAdjusted for parental age. OR=odds ratio, CI=confidence interval.