National trends in alcohol and substance use among adolescents from 2005 to 2021: a Korean serial cross-sectional study of one million adolescents.

World J Pediatr · 2023 · PMC10049906 · PMID 36977821

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a decreasing trendno p-value reported

A decreasing trend was presented in the proportions of current alcohol drinkers and substance users with different slopes at each period.

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