Chunk #12 — Methods — Discovery sample from TAG consortium

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Polygenic risk scores for smoking: predictors for alcohol and cannabis use?

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yes

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Ever versus never regular smokers (Ever): Regular smokers (1) were defined as those who reported having smoked ≥100 cigarettes during their lifetime and never regular smokers (0) were defined as those who reported having smoked between 0 and 99 cigarettes during their lifetime. Total sample size N=69.409.