Table D.
Crude and adjusted odd ratio (OR) and 95% confidence interval from multivariable logistic regression of autistic spectrum disorder (ASD) for season of conception, by socioeconomic status (SES)
| Season of conception | SES median-high |
SES median - low |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OR crude | 95% CI | OR adjusted* | 95% CI | OR crude | 95% CI | OR adjusted* | 95% CI | |||||
| Winter | 1 (ref.) | 1 (ref.) | 1 (ref.) | 1 (ref.) | ||||||||
| Spring | 1.00 | 0.75 | 1.34 | 0.99 | 0.74 | 1.33 | 0.96 | 0.75 | 1.22 | 0.96 | 0.75 | 1.23 |
| Summer | 1.00 | 0.74 | 1.35 | 0.99 | 0.73 | 1.33 | 0.96 | 0.75 | 1.22 | 0.97 | 0.76 | 1.24 |
| Fall | 1.09 | 0.82 | 1.45 | 1.08 | 0.82 | 1.44 | 1.05 | 0.83 | 1.33 | 1.06 | 0.83 | 1.34 |
*Adjusted for child’s age, father’s age, mother’s age, district, birth weight, age with imputation.