Chunk #45 — Results — Population-based cohorts (post hoc)

Source

The genetic epidemiology of obsessive-compulsive disorder: a systematic review and meta-analysis.

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yes

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Brander et al. [10] studied the same population between 1967 and 2007. They reported that full siblings of individuals with tic-related OCD (HD = 10.63, 95% CI = 7.92–14.27) had a higher risk for OCD than the relatives of non-tic-related OCD (HD = 4.52, 95% CI 4.06–5.02).