Abstract
COVID-19-related social restrictions provided an opportunity to evaluate the impact of social isolation on Parkinson's disease. This study aimed to explore changes in social isolation and their associations with PD symptoms using the Lubben Social Network Scale-Revised (LSNS-R). Data from 80 participants of the Early Parkinson's Disease Longitudinal Singapore cohort were collected from April 2019 to April 2023, covering the periods before and after the imposition of COVID-19 restrictions. Individuals with LSNS-R scores≤24 were considered socially isolated. Data were stratified into strata 1 (improved LSNS-R scores) and strata 2 (worsened/unchanged scores). Linear regression was used to identify predictors of LSNS-R change, and MANCOVA was used to examine associations between LSNS-R change and motor/ non-motor symptoms. Mean LSNS-R scores decreased (p=0.014), and proportions of social isolation increased (p<0. 001) during COVID-19 restrictions. However, 35% showed improved LSNS-R scores, while 65% had worsened/unchanged scores. The regression model was significant in strata 1 (R2=0.806, p=0.001), with age, marital status, and social isolation status being significantly associated with change in LSNS-R scores. LSNS-R. Results of MANCOVA indicated that LSNS-R improvements in LSNS-R were significantly associated with outcomes (Roy's Largest Root statistic=126.638, p<0.001), particularly for changes in PDQ8, HADS-Anxiety, and HADS-Depression scores. The regression model was not significant in strata 2 (R2=0. 279, p=0.206), wherein motor and non-motor symptoms worsened. While worsening LSNS-R scores were associated with poorer outcomes, improvements in social networks were associated with improved non-motor symptoms and quality of life. These findings underscore the complexity of social isolation in PD and the need for targeted interventions.
Published Version
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