Chunk #8 — Materials and Methods — Variables

Source

Suicide in obsessive-compulsive disorder: a population-based study of 36 788 Swedish patients.

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yes

Text

Parental education level was used as a proxy for the participants’ socioeconomic status.28 The highest attained education among the parents of patients and controls was categorized into three groups: elementary education (⩽9 years), secondary education (10–12 years) and higher education (>12 years).