Loneliness is a psychosocial problem commonly experienced by older adults, particularly those living in social care institutions. This condition can affect physical, psychological, and social health, thereby contributing to a decline in quality of life. This study aimed to analyze the effect of loneliness levels on the quality of life of older adults at the UPTD Geunaseh Sayang Social Care Institution for Older Adults in Banda Aceh. This study employed a quantitative analytical design with a cross-sectional approach. The study population consisted of 55 older adults, with a sample of 30 respondents selected using purposive sampling. Loneliness levels were measured using the UCLA Loneliness Scale Version 3, while quality of life was assessed using the WHOQOL-OLD instrument. Data were analyzed using univariate and bivariate analyses with Somers’ D test at a 95% confidence level (α = 0.05). The results showed that most respondents experienced moderate loneliness, accounting for 18 respondents (60.0%), followed by low loneliness in 10 respondents (33.3%) and high loneliness in 2 respondents (6.7%). Most respondents had a moderate quality of life, accounting for 29 respondents (96.7%), while 1 respondent (3.3%) had a low quality of life. The Somers’ D test showed a p-value of 0.025 and a coefficient of 0.288, indicating a statistically significant relationship between loneliness levels and quality of life among older adults. Higher levels of loneliness were associated with lower perceived quality of life. This study is expected to serve as a basis for developing programs to strengthen social support and psychosocial care services for older adults in social care institutions, thereby improving their quality of life.
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