| Reported Illnesses or Responses to Exposures | Children With ADHD | Children With ASD | ||||
|---|---|---|---|---|---|---|
| OR | 95% CI | P Value* | OR | 95% CI | P Value* | |
| Reactions to vaccinations that prompted a call to the doctor | 0.75 | 0.32–1.7 | .484 | 3.7 | 1.8–7.5 | <.001 |
| Ear infections requiring tubes placed in the ears | 1.4 | 0.8–2.2 | .242 | 1.7 | 1.1–2.7 | .020 |
| Multiple infections requiring prolonged use of antibiotics | 1.74 | 0.9–3.2 | .072 | 4.9 | 2.7–8.6 | <.001 |
| Sensitivity to odors such as smoke, nail polish remover, exhaust, gasoline, air fresheners, or cleaning supplies. By sensitive we mean, does this child become nauseated, get headaches, have trouble breathing, feel dizzy, or try to move away from the odor? | 2.00 | 1.1–4.0 | .041 | 3.5 | 1.9–6.8 | <.001 |
| Exhibited food allergies or intolerances | 1.07 | 0.6–1.8 | .790 | 3.3 | 2.1–5.1 | <.001 |
| Strong food preferences/cravings such as cheese, chips, bread, pasta, rice, sugar, salt, and chocolate | 2.00 | 1.3–3.1 | .003 | 4.8 | 3.2–7.5 | <.001 |
| Became sick from an environmental exposure | 0.49 | 0.12–2.1 | .320 | 2.2 | 0.77–7.8 | .176 |
| Allergies | 2.00 | 1.3–3.1 | .002 | 1.6 | 1.1–2.4 | .020 |
| Asthma | 1.1 | 0.6–1.6 | .980 | 1.38 | 0.82–2.2 | .250 |
Analysis was adjusted for marital status and comorbid conditions.
↵* P values compare cases to controls. Bold values indicate statistical significance.
ADHD, attention deficit hyperactivity disorder; ASD, autism spectrum disorder; CI, confidence interval; OR, odds ratio.