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Meta-analysis was used to establish the efficacy of various controlled alcohol misuse treatments in maintaining abstinence over short-term, 6-month, and 12-month follow-ups. Effect sizes were measured by odds ratio. Aggregate effect size differences between experimental and control groups were negligible. Only three of 15 studies found a clinically significant difference between treatment abstinence outcomes.
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Vito Agosti (1994) studied this question.
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