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Odds ratio for a history of gastrointestinal disease among children with autism (cases) compared with children without autism (controls)
| Cases (n=96)
|
Controls
(n=449)
|
Odds ratio* (95% CI)
|
|
|---|---|---|---|
| No (%) with no gastrointestinal disease | 87 (91) | 408 (91) | Reference group |
| No (%) with gastrointestinal disease | 9 (9) | 41 (9) | 1.0 (0.5 to 2.2) |
Controls matched to cases by age (within 2 months), sex, general practice, and index date.
