AUTHOR=Pardoel Zinzi E. , Reijneveld Sijmen A. , Lensink Robert , Postma Maarten , Thuy Tran B. , Viet Nga C. , Phuong Lien N. T. , Koot Jaap A. R. , Landsman Jeanet J. A. TITLE=The implementation of community-based programs in Vietnam is promising in promoting health JOURNAL=Frontiers in Public Health VOLUME=Volume 11 - 2023 YEAR=2023 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2023.1182947 DOI=10.3389/fpubh.2023.1182947 ISSN=2296-2565 ABSTRACT=Background: Low and middle-income countries mostly have ageing populations with many unmet economic, social or health-related needs, Vietnam being an example. Community based support in Vietnam organised as Intergenerational Self-Help Clubs (ISHCs) based on the Older People Associations (OPA) model, can help to meet these needs by provision of services regarding various aspects of life. This study aims to assess the implementation of the ISHCs and whether successful implementation is associated with more member reported positive health. Methods: We used the RE-AIM (Reach, Effectiveness, Adoption, Implementation and Maintenance) framework to evaluate implementation, using multiple data sources: ISHC board surveys (n=97), ISHC member surveys (n=5080 in 2019 and n=5555 in 2020), focus group discussions (6; n=44) and interviews with members and board leaders (n=4). Results: Reach ranged between 46%-83% of ISHCs reaching target groups, with a majority of women and older people participating. Regarding Effectiveness, members indicated high satisfaction with the ISHCs. Adoption scores were high, with 74%-99% for healthcare and community support activities, and in 2019, higher adoption scores were associated with more members reporting good positive health. In 2020, reported positive health slightly decreased, probably due to the influence of the Covid-19 pandemic. 61 ISHCs had consistent or improving Implementation from 2019 to 2020 and confidence in Maintenance was high. Conclusion: The implementation of the OPA-model in Vietnam is promising regarding promotion of health and may help to tackle the problems of an ageing population. This study further shows that the RE-AIM framework helps to assess community health promotion approaches.