Differences between completers and early dropouts from 2 HIV intervention trials: a health belief approach to understanding prevention program attrition.
- 1 July 1998
- journal article
- Published by American Public Health Association in American Journal of Public Health
- Vol. 88 (7), 1068-1073
- https://doi.org/10.2105/ajph.88.7.1068
Abstract
OBJECTIVES: The purpose of this study was to identify factors predicting program attrition among participants in human immunodeficiency virus (HIV) risk reduction trials. METHODS: Participants were gay/bisexual men and severely mentally ill adults recruited to take part in HIV risk reduction small-group interventions. Program completers were compared with participants who were assessed at baseline but then failed to attend any sessions. The health belief model provided a framework for selection of possible predictors of program attrition. RESULTS: Younger age was associated with early dropout in both samples. Other predictors among gay/bisexual men included involvement in an exclusive sexual relationship, minority ethnicity, injection drug use, and higher perceived severity of AIDS. Severely mentally ill dropouts were less knowledgeable about safer sex methods and more likely to hold positive outcome expectancies for condom use. CONCLUSIONS: Evaluation of intervention effectiveness among vulnerable population segments is threatened if there is selective attrition. Better methods are needed to attract and maintain participation in HIV prevention programs. Alternatively, wider application of "intention to treat" analysis of intervention outcomes is recommended to minimize selection bias due to program dropout.Keywords
This publication has 29 references indexed in Scilit:
- A randomized controlled trial of an HIV sexual risk-reduction intervention for young African-American womenJAMA, 1995
- Demographic and Behavioral Differences Among Participants, Nonparticipants, and Dropouts in a Cohort Study of Men who Have Sex with MenSexually Transmitted Diseases, 1995
- Behavioural interventions for HIV/AIDS preventionAIDS, 1995
- Can We Get People to Participate in a Study of Sexual Behavior?Sexually Transmitted Diseases, 1995
- Cognitive)ehavioral intervention to reduce African American adolescents' risk for HIV infection.Journal of Consulting and Clinical Psychology, 1995
- Reducing inner-city women's AIDS risk activities: A study of single, pregnant women.Health Psychology, 1994
- The reliability of self-reported sexual behaviourAIDS, 1991
- Behavioral intervention to reduce AIDS risk activities.Journal of Consulting and Clinical Psychology, 1989
- Self-efficacy: Toward a unifying theory of behavioral change.Psychological Review, 1977
- Self-efficacy: Toward a unifying theory of behavioral change.Psychological Review, 1977