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Percentage, valid N, and T-tests of pre-natal/pregnancy factors for SPD and ASD children.
| Factor | SPD % (N) | ASD % (N) | t (p) |
|---|---|---|---|
| Maternal stress | 17.8 (982) | 20.7 (421) | 0.656 (0.211) |
| Maternal illness | 25.4 (988) | 23.8 (421) | 0.656 (0.512) |
| Maternal use of medications | 26.1 (980) | 28.4 (416) | −0.865 (0.387) |
Note: No comparable normative data was available on these factors.
