The association between family members’ migration and cognitive function among people left behind in China

Autoři: Yosuke Inoue aff001;  Annie Green Howard aff001;  Bo Qin aff003;  Aki Yazawa aff004;  Andrew Stickley aff005;  Penny Gordon-Larsen aff001
Působiště autorů: Carolina Population Center, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America aff001;  Department of Biostatistics, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America aff002;  Department of Population Science, Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey, United States of America aff003;  Department of Social and Behavioral Sciences, Harvard T. H. Chan School of Public Health, Harvard University, Boston, Massachusetts, United States of America aff004;  The Stockholm Center for Health and Social Change (SCOHOST), Södertörn University, Huddinge, Sweden aff005;  Department of Nutrition, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America aff006
Vyšlo v časopise: PLoS ONE 14(9)
Kategorie: Research Article
doi: 10.1371/journal.pone.0222867


While internal migration is widely occurring in countries across the world and older people are more likely to be left behind by family members who out-migrated to other locations, little attention has been paid to the cognitive health of those people who have been left behind (PLB). Understanding how these demographic patterns relate to older persons’ cognitive health may inform efforts to reduce the disease burden due to cognitive decline. Data came from the China Health and Nutrition Survey in 1997, 2000 and 2004. Participants aged 55 to 93 who participated in a cognitive function screening test (score range: 0–31) in two or more waves and provided information on family members’ migration (n = 1,267) were included in the analysis. A mixed linear model was used to investigate the association between being left behind by any members who had not resided in the household for at least 6 months at baseline and cognitive function. Approximately 10% of the participants had been left behind by family members who migrated out of their communities. A significant interaction was observed in relation to cognitive function between being left behind and the number of years from the first test. Specifically, there was a less steep decline in cognitive function of PLB compared to people not left behind. This longitudinal study showed that PLB tended to have a higher cognitive function compared to those not left behind due to their relatively stable transition in cognitive function during the study period.

Klíčová slova:

Cognitive impairment – Elderly – Geriatric depression – Geriatrics – Human families – China – Schools – Socioeconomic aspects of health


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