Self-determination and Physical Functioning as Mediators of the Association between Self-reported Sensory Impairments and Happiness among Older Adults.

Introduction: The prevalence of vision and hearing impairments increases through age. This development is individually associated with physical functioning difficulties, self-determination issues, and lower levels of happiness. Method: This study examined how self-reported sensory impairments relate to happiness with physical autonomy and social engagement as mediators using structural equation modelling. Using the nationally representative 2017 Survey of Older Persons in Thailand, the analytic sample size was 34,195 with an age range of 60-103 years and a mean age of 69.6 years. Results: A negative association between subjective vision impairment and happiness was observed through the mediation of limitations in physical functioning and community activity. Subjective hearing impairment was observed to lack association with happiness taking into account all the mediating factors. Conclusion: The care needs of older adults in Thailand where the ageing of the population progresses could then differ depending on their health and well-being status.