Impact of community-based multidomain preventive health program on healthcare utilisation among elderly persons in Singapore: a propensity score matched and difference-in-differences study

ObjectivesAgeing populations present substantial challenges for healthcare systems. Community-based health worker (CHW) interventions for promoting healthy ageing and preventing/managing non-communicable diseases have gained considerable attention in recent years. This study aimed to assess the impacts of a multidomain preventive health initiative delivered by CHWs, specifically the ‘My Health Map (MHM)’ programme, on participants’ health service utilisation using a propensity score matching methodology.Design, setting and participantsThe multidomain MHM programme, which was implemented in Bukit Batok township, encompassed screenings, vaccinations, chronic disease management, counselling and socio-environmental interventions. Individuals, aged ≥40 years old, who received care at Ng Teng Fong General Hospital and were enrolled in the MHM programme constituted the intervention group. Outcomes of the intervention group were compared with a 1:1 propensity-matched comparison group at enrolment and 1-year follow-up. The outcome measures were emergency department (ED) utilisation and hospital admissions. Statistical evaluations were performed using χ2/non-parametric tests and difference-in-difference (DiD) estimation with a bias-adjusted generalised estimating equation (α=0.05).ResultsA comparable comparison group was formed with no significant differences in baseline characteristics between groups. Data from a total of 299 MHM participants (mean age 70.7 (SD 9.6); 62.5% women) and 299 matched comparisons (mean age 72.1 (SD 16.6); 61.5% women) were appraised. DiD analysis indicated a significant reduction in ED attendance (−16.7%, p