Gender differences in treatment outcomes among participants in a mixed-gender substance abuse aftercare program

Utilization of Substance Abuse Treatment: Gender Differences among Participants in an Aftercare Program

This study examined gender differences in the utilization of substance abuse treatment including inpatient, outpatient, and self-help services, using existing data sets from a National Institute on Drug Abuse study that enrolled 78 females and 141 males in a mixed-gender aftercare program in Massachusetts for a 2-year follow-up period. This study found that women came to the study in greater need of treatment than men. Women utilized significantly more outpatient treatment services than men. The characteristic of female per se led to more utilization of outpatient services, whereas the baseline characteristics of employed status and alcohol use led to less utilization of outpatient services.

Adolescent substance use treatment: the moderating effects of psychopathology on treatment outcomes

The present study tested the influence of co-occurring mental health diagnoses on the relationship between length of stay and treatment outcome among adolescents residing in an inpatient substance abuse treatment facility. Data were collected via record review. Follow-up information was obtained at 7 days and 3 months post-discharge. Treatment outcome was defined as abstinence and engagement in recovery activities. Hierarchical linear regression demonstrated that comorbidities differentially moderated the relationship between length of stay and treatment outcome. Results suggest that these adolescents attempt to engage in recovery activities independent of abstinence and may need supplemental aftercare assistance to maintain their efforts.

Predictors and moderators of outcomes of HIV/STD sex risk reduction interventions in substance abuse treatment programs: a pooled analysis of two randomized controlled trials

Background

The objective of the current study was to examine predictors and moderators of response to two HIV sexual risk interventions of different content and duration for individuals in substance abuse treatment programs.

Methods

Participants were recruited from community drug treatment programs participating in the National Institute on Drug Abuse Clinical Trials Network (CTN). Data were pooled from two parallel randomized controlled CTN studies (one with men and one with women) each examining the impact of a multi-session motivational and skills training program, in comparison to a single-session HIV education intervention, on the degree of reduction in unprotected sex from baseline to 3- and 6- month follow-ups. The findings were analyzed using a zero-inflated negative binomial (ZINB) model.

Results

Severity of drug use (p < .01), gender (p < .001), and age (p < .001) were significant main effect predictors of number of unprotected sexual occasions (USOs) at follow-up in the non-zero portion of the ZINB model (men, younger participants, and those with greater severity of drug/alcohol abuse have more USOs). Monogamous relationship status (p < .001) and race/ethnicity (p < .001) were significant predictors of having at least one USO vs. none (monogamous individuals and African Americans were more likely to have at least one USO). Significant moderators of intervention effectiveness included recent sex under the influence of drugs/alcohol (p < .01 in non-zero portion of model), duration of abuse of primary drug (p < .05 in non-zero portion of model), and Hispanic ethnicity (p < .01 in the zero portion, p < .05 in the non-zero portion of model).

Conclusion

These predictor and moderator findings point to ways in which patients may be selected for the different HIV sexual risk reduction interventions and suggest potential avenues for further development of the interventions for increasing their effectiveness within certain subgroups.