Longitudinal association between home and community-based services provision and cognitive function in Chinese older adults: Evidence from the Chinese Longitudinal Healthy Longevity Survey.

Few studies have assessed the impact of home and community-based services (HCBSs) provision on cognitive function among older adults over time. This study examined the longitudinal association between HCBSs provision and cognitive function in Chinese older adults. The study included 5,134 participants aged 65 years and older in the Chinese Longitudinal Healthy Longevity Survey from 2008 to 2014. The Mini-Mental State Examination (MMSE) was used to evaluate cognitive function over the same time period. Participants were asked what kind of HCBSs were provided in his or her community. However, they were not asked whether services were utilised. The study used the number of HCBSs provided each wave to represent the strength of HCBSs, and used the MMSE score of each wave to represent the older adults' cognitive function status. A latent growth model was used to explore the relationship between HCBSs provision and cognitive function of older adults. The number of HCBSs provided was positively associated with older adults' cognitive function (2008: β = 0.03, p = 0.031; 2011: β = 0.06, p < 0.001; 2014: β = 0.06, p < 0.001) after controlling for gender, age, residence, education, income, medical insurance, activities of daily living disability, instrumental activities of daily living disability, serious illness, living arrangement and marital status. Results provided longitudinal evidence that an increase in HCBSs provision at a national level can result in better cognitive function in Chinese older adults.