Effect of Elderly School Policy on Quality of Life among Thailand’s Senior Citizens: A Propensity Score Matching Approach

Background: As Thailand’s population ages, promoting senior citizens’ quality of life (QoL) is crucial. In 2017, the Ministry of Social Development and Human Security launched the “elderly school” initiative to foster lifelong learning and enhance the QoL among senior citizens. However, comprehensive evaluations of its impact on QoL remain limited. Methods This cross-sectional survey aimed to assess the policy’s effect on QoL in Phetchabun province, Thailand. Using quota and systematic sampling, 1,374 senior citizens aged 60-80 participated. Propensity score matching (PSM) with a 1:1 match was employed to estimate the average treatment effect (ATE) of attending the elderly school on QoL. Additionally, multiple linear regression was analyzed to assess the association between QoL and its associated factors. Results PSM were matched successfully, the standardized difference was less than 10 percent, and the baseline after matching indicated balances with 687 elderly people in each group. The mean QoL score of the non-attending group was 44.40 (SD = 7.11), and that of the attending group was 57.50 (SD = 7.53). The ATE for elderly people attending school was 10.67 scores (95% CI: 9.67 – 11.67 scores) higher than those unattended. Being female, having monthly income higher than 20,000, having employment, having a caregiver, and attendance at elderly school were positively associated with QoL, and the standardized beta coefficients were 0.078, 0.059, 0.094, 0.066, and 0.550, respectively. Additionally, higher education was positively associated with higher QoL. Conclusion The elderly school policy significantly enhanced the QoL of the attending senior citizens. Findings suggest continued collaboration among stakeholders to sustain and optimize this policy for improved seniors’ QoL, which has the potential to utilize lifelong learning to create an inclusive framework for healthy aging among senior citizens.