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Table 4 Binary logistic regression analyses of correlates of autism among children aged 18 and 30 months with interaction term

From: Prevalence of autism spectrum disorders and their relation to selected socio-demographic factors among children aged 18–30 months in northern Vietnam, 2017

  Odds ratio Lower level of 95% CI Upper level of 95% CI
Province
 Ha Noi 1   
 Thai Binh 0.78 0.49 1.22
 Hoa Binh 0.85 0.53 1.35
Gender * Area
 Girl * Rural 1   
 Boy * Rural 3.13 1.79 5.45
 Girl * Urban 1.54 0.61 3.92
 Boy * Urban 9.46 5.03 17.80
Age (months)
 18–23 1   
 24–30 1.00 0.70 1.42
Mother age
 Less than 29 1   
 29 to 39 1.13 0.71 1.79
 40 and older 0.72 0.33 1.57
Mother’s education
 Primary education 1   
 Secondary education 1.07 0.62 1.85
 High school 1.28 0.65 2.55
 University/College 0.75 0.31 1.78
Mother’s occupation
 Government staff 1   
 Private sector staff 1.60 0.79 3.23
 Farmer 4.71 2.03 10.94
 Unstable job 1.50 0.72 3.11
 Others 1.82 0.70 4.74
Father’s age
 Less than 29 1   
 29 to 39 1.24 0.79 1.94
 40 and older 0.89 0.30 2.61
Father’s education
 Primary education 1   
 Secondary education 1.10 0.64 1.89
 High school 1.29 0.63 2.60
 University/College 1.34 0.58 3.13
Father’s occupation
 Government staff 1   
 Private sector staff 1.73 0.83 3.61
 Farmer 0.64 0.25 1.66
 Unstable job 1.86 0.87 3.94
 Others 2.74 0.93 8.08
Number of children in the family
 1 1   
 2 1.14 0.75 1.74
 3 1.17 0.63 2.19
Economic status
 Non-poor 1   
 Near poor/poor 1.06 0.56 2.00