Estimated probability of becoming a case of drug dependence in relation to duration of drug‐taking experience: a functional analysis approach

This study's novel estimates for cocaine users one month after first use show 2–4% with cocaine dependence; 12–17% are dependent when use has persisted. Corresponding cannabis estimates are 0–1% after one month, but 10–23% when use persists. Duration or persistence of cannabis smoking beyond an initial interval of a few months of use seems to be a signal of noteworthy risk for, or co‐occurrence of, rapid‐onset cannabis dependence, not too distant from cocaine estimates, when we sort newly incident users into subgroups defined by elapsed time from first to most recent use. Copyright © 2016 John Wiley & Sons, Ltd.
Source: International Journal of Methods in Psychiatric Research - Category: Psychiatry Authors: Tags: Original Article Source Type: research