A Study on the Factors Affecting Drug Users’ Intention to Use Treatment Services: Applying the Gelberg-Andersen Behavioral Model for Vulnerable Populations

Abstract

The purpose of this study was to investigate the factors and paths affecting Korean drug users’ intention to use treatment services. The Behavioral Model for Vulnerable Populations was used as the theoretical framework. The survey originally included 714 drug users, 694 of whom were analyzed after the removal of multivariate outliers. Data were analyzed using structural equation modeling and effect decomposition. Factors with a statistically significant effect were as follows: from the traditional domain - gender; from the vulnerable domain - previous treatment experience, years of drug use, and drug abuse severity. There was a distinct difference between genders regarding users" intention to use treatment services. Previous treatment experience influenced users" intention to use treatment services directly, as well as indirectly, via drug abuse severity. Years of drug use did not have a direct effect on intention to use treatment services, but it had an indirect effect via drug networks and drug abuse severity. Drug abuse severity was found to have a direct effect on intention to use treatment services and functioned as a buffering and mediating factor. There should be a careful consideration of gender and other vulnerable characteristics of drug users in treatment settings in order to encourage their voluntary use of treatment services.