<![CDATA[Background: Dengue prevention in Southeast Asia requires a comprehensive understanding of diverse factors to support context-tailored public health interventions, encompassing both source reduction and personal protection. Objective: This scoping review maps the multidimensional factors (demographic, socioeconomic, psychological, and behavioral) associated with dengue prevention behaviors in Southeast Asia. Methods: Following PRISMA-ScR guidelines, this review used a PCC framework with general populations as the population, demographic, socioeconomic, psychological, and behavioral determinants as the concept, and Southeast Asia as the context. Searches across PubMed, Scopus, and ProQuest covered primary studies published from January 1, 2020, to September 11, 2025. Title and abstract screening was initially conducted by one reviewer, followed by independent full-text screening by two reviewers, with data extraction and cross-checking using a standardized charting template. Results: After systematic screening and feasibility assessment of 843 records, we included 16 studies from four countries in the final analysis. The findings indicate that community dengue prevention behaviors were frequently associated with psychological constructs, specifically self-efficacy and cues to action. However, a persistent "knowledge-practice gap" frequently co-occurs alongside socioeconomic and structural barriers, such as income constraints, high-density housing, and unreliable infrastructure, which are inversely associated with routine vector control practices. Conclusion: Because dengue prevention in Southeast Asia is shaped by socio-ecological realities rather than individual choice, future strategies should integrate psychological empowerment with routine breeding-site elimination. Practically, these findings underscore the need for national programs, such as Indonesia’s “1 Rumah 1 Jumantik”, to incorporate psychological approaches to achieve sustainable vector control.]]>
