Case-control study identifies sociodemographic and environmental risk factors for dengue in Indonesia, suggesting urgent prevention strategies.
Key Points
To evaluate sociodemographic and structural risk factors for dengue infection in a rapidly developing district of Indonesia.
Conducted a case-control study in Deli Serdang, North Sumatra.
Compared laboratory-confirmed dengue cases to non-dengue febrile controls screened via medical records.
Assessed housing conditions and sociodemographic characteristics with a validated electronic questionnaire.
39 dengue cases and 78 controls were enrolled from 238 screened individuals.
Male sex (aOR 6.7, 95% CI 1.3–33.7) and student status (aOR 7.8, 95% CI 1.1–56.5) were risk factors.
Absence of window screens (aOR 12.9, 95% CI 3.1–53.8) and surrounding vegetation (aOR 7.3, 95% CI 1.7–31.9) were also significantly associated with dengue infection.