Dataset Information

Urban-rural differentials in age-related biological risk among middle-aged and older Chinese.

ABSTRACT: OBJECTIVES:To assess urban-rural differentials in age-related biological risk among middle-aged and older Chinese and links to individual and community characteristics. METHODS:Data come from the national baseline survey of the China Health and Retirement Longitudinal Study. Biological risk is assessed using a set of measured biomarkers that reflect cardiovascular, metabolic, and inflammatory processes. RESULTS:Urban residents who are officially registered in urban areas have greater biological risk than rural residents. Having junior school or higher education provides an independent and persistent protective effect against biological risk and eliminates the effect of community-level measures. The reduced physical activity of urban dwellers with urban origins explains a substantial part of the difference in risk. CONCLUSIONS:Urban dwellers with urban household registration have elevated risk compared with their rural peers, indicating that lifetime exposure to urban areas is an important risk factor for increased biological risk in China. The urban-rural differential in risk is accounted for by adjusting for health behaviors, particularly physical activity. The reduced physical activity among urban dwellers with urban household registration appears to be highly related to their elevated risk. No significant associations between community-level characteristics and biological risk are found beyond individual characteristics.

SUBMITTER: Zhang YS

PROVIDER: S-EPMC6556141 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature

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Urban-rural differentials in age-related biological risk among middle-aged and older Chinese.

Zhang Yuan S YS Crimmins Eileen M EM

International journal of public health 20181208 6

<h4>Objectives</h4>To assess urban-rural differentials in age-related biological risk among middle-aged and older Chinese and links to individual and community characteristics.<h4>Methods</h4>Data come from the national baseline survey of the China Health and Retirement Longitudinal Study. Biological risk is assessed using a set of measured biomarkers that reflect cardiovascular, metabolic, and inflammatory processes.<h4>Results</h4>Urban residents who are officially registered in urban areas ha ...[more]

PMID: 30535932

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Project description:Awareness of Age-Related Change (AARC) describes to what extent people become aware of changes which they attribute to getting older. So far little is known regarding how different AARC dimensions change over time, to what extent these changes in different domains of AARC gains and losses are interrelated, and which predictors account for inter-individual differences in within-person longitudinal trajectories. Specifically, the extent to which individuals perceive age-related gains and losses might be shaped by their chronological age, their personality as well as by their general views on aging (i.e., their age stereotypes). We investigated changes in global and domain-specific AARC gains and losses over about five years in a sample of originally N = 423 participants aged 40 to 98 years at baseline. We analyzed the role of personality traits and age stereotypes for levels and changes of AARC, taking into account participants' age at baseline and controlling for gender, education, and subjective health. Based on longitudinal multilevel regression models, we observed mean-level declines in most AARC gain domains. In contrast, perceived general AARC losses, as well as AARC losses in health and physical functioning, in cognitive functioning and in social-cognitive/socio-emotional functioning remained, on average, stable over time. Baseline scores on AARC gains (global scale) were higher among individuals with higher neuroticism, openness, conscientiousness and more positive age stereotypes. Additionally, the association of higher neuroticism with higher AARC gain scores was stronger among individuals with more positive age stereotypes. Higher neuroticism and more negative age stereotypes also predicted higher baseline scores on AARC losses (global scale). At the same time, higher neuroticism was associated with a steeper decrease in AARC loss perceptions over time. Most of the intercorrelations within the intercepts and within the intra-individual trajectories of the different AARC domains were positive, but small in size. Our findings show the importance of considering trajectories of age-related gains and losses in parallel and across multiple developmental domains when investigating the subjective perception of the aging process. They also suggest that personality traits and general age stereotypes are related with individual experiences of aging.

Dataset Information

Urban-rural differentials in age-related biological risk among middle-aged and older Chinese.

Publications

Urban-rural differentials in age-related biological risk among middle-aged and older Chinese.

Similar Datasets

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