Chunk #14 — METHODS — Socio-demographic factors

Source

TTC12-ANKK1-DRD2 and CHRNA5-CHRNA3-CHRNB4 influence different pathways leading to smoking behavior from adolescence to mid-adulthood.

Embedded

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Text

Cohort members’ socio-economic status based on occupation was collected at 31 years and classified as: professionals; skilled-workers; unskilled-workers; farmers; and others (students, pensioners, unemployed, and unknown).