Table 2.
Immigration status by childhood autism in cases and controls
| Cases n (%) | Controls n (%) | OR (95% CI) | p | Adjusted a OR (95% CI) | p | |
|---|---|---|---|---|---|---|
|
Both parents Finnish |
1 035 (91.4) |
4 265 (94.5) |
Ref. |
|
Ref. |
|
|
Mother only immigrated |
35 (3.1) |
80 (1.8) |
1.8 (1.2-2.7) |
0.004 |
1.8 (1.2-2.7) |
0.004 |
|
Father only immigrated |
23 (2.0) |
77 (1.7) |
1.2 (0.8-2.0) |
0.39 |
1.3 (0.8-2.1) |
0.34 |
| Both parents immigrated | 39 (3.5) | 93 (2.1) | 1.8 (1.2-2.6) | 0.004 | 1.8 (1.2-2.7) | 0.002 |
aAdjusted for parental age. OR=odds ratio, CI=confidence interval.