A peer group intervention implemented by community volunteers increased HIV prevention knowledge

Area of Science:

• Public Health
• Health Education
• Community-Based Interventions

Background:

• Low HIV prevention knowledge is a significant issue in sub-Saharan Africa.
• The Mzake (Friend-to-Friend) peer group intervention, previously delivered by health workers, improved HIV prevention knowledge in Malawi.
• This study evaluated the effectiveness of the Mzake intervention when implemented by trained community volunteers to expand HIV prevention approaches.

Purpose of the Study:

• To determine if the Mzake intervention remained effective in improving HIV prevention knowledge when delivered by community volunteers.
• To assess the impact of a community-based HIV prevention program on knowledge levels in rural Malawi.

Main Methods:

• A stepped wedge design was employed, with three communities implementing the Mzake program sequentially.
• Repeated surveys assessed HIV prevention knowledge using UNAIDS comprehensive knowledge and a 9-item HIV/PMTCT Knowledge Index.
• Multivariate regression models controlled for sociodemographic factors to analyze knowledge changes.

Main Results:

• The Mzake intervention significantly increased HIV prevention knowledge, as measured by both UNAIDS comprehensive knowledge and the HIV/PMTCT Knowledge Index.
• The intervention demonstrated a significantly higher increase in correct responses compared to the control group.
• The program was particularly effective in increasing HIV prevention knowledge among youth.

Conclusions:

• The Mzake intervention is effective in increasing HIV prevention knowledge when delivered by community members.
• Community-based approaches offer a viable strategy to enhance HIV prevention in rural settings without overburdening healthcare systems.
• The findings support the scalability and sustainability of community-led HIV prevention programs.