Chunk #33 — Results — Family studies

Source

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

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Regarding definite and subthreshold OCD, the pooled data among adult samples revealed slightly lower familial loading (OR = 4.06, 95% CI 2.91–5.66, p < 0.00001) than the analyses including only definite OCD. There was no heterogeneity between the studies pooled for this analysis (I2 = 0%).