Table 6.
Percentage, valid N, and T-tests for early childhood illnesses and injuries factors.
| Early childhood illness or injury factors | SPD % (N) | ASD % (N) | t (p) |
|---|---|---|---|
| Significant childhood illness | 31.9 (988) | 26.4 (459) | 2.508 (0.012) |
| Serious injury | 12.7 (992) | 11.8 (458) | 0.489 (0.625) |
| Ear infections | 61.6 (991) | 68.5 (457) | −2.556 (0.011) |
| Insertion of tubes in ears | 13.9 (823) | 11.8 (458) | 1.047 (0.295) |
| Allergies | 23.6 (990) | 37.7 (459) | −5.593 (<0.001) |
| Seizures | 5.4 (992) | 7.9 (458) | −1.774 (0.076) |
| Asthma | 8.0 (993) | 7.4 (457) | 0.340 (0.734) |