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