Chunk #14 — Methods — Statistical analyses — Individual-level analyses

Source

A total-population multigenerational family clustering study of autoimmune diseases in obsessive-compulsive disorder and Tourette's/chronic tic disorders.

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First, we estimated the risk of any AD in individuals with a diagnosis of OCD, and separately in individuals with a diagnosis of TD/CTD. Individuals born between 1940 and 2007 with a lifetime diagnosis of OCD or TD/CTD were considered exposed and those without these disorders were considered unexposed. We also examined the risk of individual AD in patients with OCD and TD/CTD (those with >10 observations). All analyses adjusted for birth year and gender.