Bidirectional associations between depression/anxiety and bowel disease in a population based cohort: Table 1

Kurina and colleagues1 reported that neurotic disorders preceded inflammatory bowel disease (IBD), adding credence to the suggestion that depression/anxiety may either play an aetiological part in the onset of IBD or that both conditions share a common abnormality.2 As their findings were based on record linkage of people with neurotic disorder who received treatment in mental health services, representing only a small minority of such cases, replication independent of mental health service treatment setting is necessary to exclude the well known bias attributable to selection of the most severely ill with the highest comorbidity rates. This analysis is a part of the Netherlands mental health survey and incidence study (NEMESIS), a …