Widowhood Shock,Family Reconstruction,and Mild Cognitive Impairment Among Older Adults: A Prospective Cohort Study

Abstract

Mild cognitive impairment (MCI), especially among widowed older adults, is increasingly urging public concern. This study aimed to investigate the association of widowhood, remarriage, and widowed life characteristics with the MCI risk among Chinese older adults. With an average age of 86.49 ± 10.20, a sample of 5377 participants aged between 65 and 116 was collected from four waves of the Chinese Longitudinal Healthy Longevity Survey between 2008 and 2018. Cox proportional hazards models and restricted cubic spline models were employed to estimate and plot the associations. Results showed that widowhood is associated with an increasing MCI risk, which could not be alleviated by remarriage. This negative impact was pronounced among women and those at older age. The association of living alone duration after widowhood and MCI onset displayed an inverse U-shape, with a peak risk at the 10^th year. These findings have practical implications for pointing out the most vulnerable groups to MCI.

Keywords

widowhood remarriage mild cognitive impairment

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