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This study examined whether exposure to chronic loneliness is associated with a persistent decline in hand grip strength among community-dwelling older adults in Korea, and this association varies by gender.

This study analyzed data from 2,570 adults aged 65 or older collected over the course of 7 waves (12 years) of the Korean Longitudinal Study of Ageing from 2006 to 2018 (1,403 women and 1,167 men). Exposure to chronic loneliness was assessed by the experience of loneliness over a period of years, and hand grip strength was measured by an objective diagnostic tool. Gender-stratified fixed effects models were estimated to determine whether the association between chronic loneliness and hand grip strength differs by gender while accounting for time-invariant individual heterogeneity.

Chronic loneliness was …