Previous studies have suggested an association between celiac disease and schizophrenia.
In this study, researchers identified people who were admitted to Danish psychiatric units for the first time between 1981 and 1998 with a diagnosis of schizophrenia.
They identified 7997 patients.
For each of these cases, the team randomly selected 25 matched controls.
|There was a moderately strong risk relation between celiac disease and schizophrenia.|
|British Medical Journal|
The team looked for any history of celiac disease, ulcerative colitis, or Crohn's disease in the cases, controls, and their parents.
The researchers identified a moderately strong risk relation between celiac disease and schizophrenia.
Prof. William Eaton and colleagues stress that this association reflects a small proportion of cases, since both disorders are rare.