Clinical characteristics of poly-drug abuse among heroin dependents and association with other psychopathology in compulsory isolation treatment settings in China

Abstract

Objective: To investigate clinical characteristics and associations of polydrug abuse among heroin-dependent patients in compulsory isolation settings in China.Methods: Structured interviews were conducted in 882 heroin-dependent patients in two compulsory isolation settings in Changsha, China. Descriptive statistics were employed to report prevalence and general information of polydrug abuse among the participants. Bivariate associations were examined between polydrug abuse and variables regarding demographics, heroin use profile and psychopathology. Multivariate logistic regressions were conducted to determine independent factors associated with polydrug abuse.Results: Of all the participants, 40.6% reported abuse of/dependence on at least one other type of drug/alcohol than heroin/opioids during the month preceding admission, with benzodiazepines and alcohol being the most common type of drugs abused apart from heroin. Antisocial and depressive personality disorders, as well as more severe heroin use patterns, including younger age at initiate use and larger amount used per day, were found to be independently associated with polydrug abuse.Conclusions: The prevalence of polydrug abuse and its associated severe heroin use patterns and personality disorders suggests an urgent need of promoting treatment policies and strategies for heroin patients in China to address these issues.