Neighborhood Effects on the Health of Chinese Older Adults: Beyond the Rural and Urban Dichotomy

The association between neighborhood socioeconomic deprivation and mental health in low- and middle-income countries: A scoping review

BACKGROUND

Environmental research on mental health primarily originates from high-income countries, while information about the rest of the world remains limited.

AIMS

This study examined: (1) the available published research evidence regarding the association between neighborhood-level deprivation and indicators of mental health and illness in low- and middle-income countries (LMICs), and (2) the gaps in the relevant research in LMIC settings that should be addressed in future studies.

METHOD

First, we systematically searched for relevant primary studies in electronic databases (Ovid Medline, Scopus, Socindex, and PsycINFO) and citations in the reference lists. Then, a two-stage screening procedure was employed to select the relevant studies by screening the titles and abstracts and reviewing the selected full texts by independent researchers. After charting the data from the selected study reports, we collated, summarized, and discussed the results.

RESULTS

We retrieved 51 studies across 19 LMICs, with only one study originating from a low-income country. Most studies focused on adult mental health topics and few explored children's mental health. Notably, a significant majority of these studies (N = 37) reported a positive association between neighborhood deprivation and mental health/disorder. However, the research methods used varied significantly, and there were several methodological limitations.

CONCLUSIONS

This review highlights the need for more original studies in LMICs on the association between neighborhood deprivation and mental health, employing stronger methodologies.

Perceived Neighborhood Conditions, Psychosocial Factors, and Sleep Problems Among Urban and Rural Older Adults in China

OBJECTIVES

To examine the associations between perceived neighborhood conditions and older Chinese adults' sleep problems, and whether these associations are mediated by psychosocial factors and moderated by urban-rural residence.

METHODS

Data were from the World Health Organization Study on global Ageing and Adult Health. We used OLS, binary, and multinomial logistic regression analyses. Karlson-Holm-Breen decomposition method was used to test mediation effects.

RESULTS

Positively perceived neighborhood social cohesion was associated with fewer insomnia symptoms and decreased odds of poor sleep quality, sleepiness, lethargy, and short sleep duration. Positively perceived neighborhood safety was related to decreased risks of poor sleep quality and sleepiness. Depression and perceived control partially mediated the effects of perceived neighborhood on sleep. Furthermore, the protective effects of neighborhood cohesion against sleep problems were more pronounced among older urban adults than their rural counterparts.

DISCUSSION

Interventions that make neighborhoods safer and more integrated will improve late-life sleep health.

The dilution effect of healthy lifestyles on the risk of cognitive function attributed to socioeconomic status among Chinese older adults: A national wide prospective cohort study

Background

Lower socioeconomic status (SES) is a risk factor for poor cognitive function, while a healthy lifestyle is associated with better cognitive function. We examined the complex relationship between SES and a healthy lifestyle and cognitive function among older Chinese adults.

Methods

We used a national prospective cohort of the Chinese Longitudinal Healthy Longevity Survey (CLHLS) from 2008-18, aged 65 years and older with normal cognition at baseline. Participants were categorised into the favourable group if they had four to six healthy lifestyle factors and the unfavourable group for zero to three factors. SES was classified as higher and lower by assessing the socioeconomic vulnerability index (SEVI) with six components. Cognitive function was measured using the Mini-Mental State Examination (MMSE) scores and the standardised Z-scores. We applied the linear mixed effects and time-dependent Cox regression models to explore associations and further stratified the analysis by healthy lifestyles.

Results

A total of 6851 participants were included (the mean age was 80.87, 43.44% had a favourable lifestyle, and 49.29% had higher SES). Over the 10-year follow-up period, SES status and lifestyle profiles significantly affected the decline in the standardised Z-scores (P < 0.05). The higher SES group with favourable lifestyles exhibited a slower cognitive decline than those with lower SES (by 0.031 points per year, P < 0.05). The association was not observed in those in the unfavourable group (0.010 points per year, P > 0.05). During a follow-up, 25.06% of participants developed cognitive impairment (MMSE<18). We also observed a significant interaction between SES and healthy lifestyles (P < 0.05), with the corresponding associations of SES being more pronounced among participants with unfavourable lifestyles (hazard ratio (HR) = 0.821; 95% confidence interval (CI) = 0.701-0.960) than those with favourable lifestyles (HR = 1.006; 95% CI = 0.844-1.200).

Conclusions

A healthy lifestyle may attenuate the adverse impacts of lower SES on cognitive function among older adults. This study might provide important information for protecting cognitive function, especially in low- and middle-income countries.

How Neighborhood Structural and Individual Characteristics Affect Frailty Progression: Evidence from the China Health and Retirement Longitudinal Study

OBJECTIVES

(1) To characterize the average trajectories of frailty over time in Chinese community-dwelling older adults; (2) To assess the effects of neighborhood structural and individual characteristics on frailty progression.

DESIGN

A nationally representative prospective cohort study.

SETTING

Communities in 28 provinces, China.

PARTICIPANTS

6238 respondents aged 60 and above in 447 communities from four waves of the China Health and Retirement Longitudinal Study.

MEASUREMENTS

Frailty was measured using the 61-item Frailty Index (FI).

RESULTS

The trajectory of FI was nonlinear, with an average growth rate of 0.025 that significantly slows down at the rate of 0.002 per year. Older, male, and uninsured respondents showed faster rates of growth in FI over time than younger, female, and insured counterparts. Respondents living in neighborhoods with a higher percentage of the older population and rural villages showed slower rates of growth in FI over time.

CONCLUSION

Expanding health insurance coverage and keeping a high clustering of the elderly in neighborhoods may be the potential strategies for population-level frailty prevention and interventions.

Do Age-Friendly Community Policy Efforts Matter in China? An Analysis Based on Five-Year Developmental Plan for Population Aging

(1) Background: The study will examine whether local governments' policy efforts on age-friendly communities (AFC) promote older adults' social participation in China. The extensive scope of AFC makes measuring policy efforts very challenging. The study attempts to introduce the developmental planning and goal-setting theory in public policy literature to answer this question. (2) Methods: We look at the Eleventh Five-Year Developmental Plan for Population Aging in subnational governments and CHARLS (the China Health and Retirement Longitudinal Study) baseline dataset from 2011, with data on policy strength and social participation of older adults. By using multilevel linear models, we regress social participation at the individual level on the policy strength of age-friendly communities at the provincial level. (3) Results: The results show that policy strength on AFC does vary substantially among provinces within China. And the interaction between policy strength of physical environment of local governments and community infrastructures is positively associated with social participation of rural older adults in China. (4) Conclusions: We conclude that policy efforts of local governments on the physical environment of age-friendly communities have effectively promoted the social participation of rural older adults in China. Policy makers could integrate physical infrastructures into their rural revitalization strategy to improve the wellbeing of Chinese older adults.

The association between community-level socioeconomic status and cognitive function among Chinese middle-aged and older adults: a study based on the China Health and Retirement Longitudinal Study (CHARLS)

Background

Although numerous studies focused on the relationship between area socioeconomic status (SES) and health, only a few of them investigated how community-level SES was linked to late-life cognitive function as well as the potential pathways underlying this association, and very few of them focused on the context of China. This study examined how community-level SES was linked to cognitive function and the potential pathways underlying this association among middle-aged and older adults in China.

Methods

Data was drawn from the waves 1–4 of China Health and Retirement Longitudinal Study. We measured cognitive function with the components of the Telephone Interview of Cognitive Status battery. Community-level SES was derived from a sum of z scores of the percentage of the illiterate and the per-capita net income status within communities. We adopted two-level hierarchical linear regression models to explore the associations between community-level SES and cognitive function. A multilevel mediation analysis with structural equation modeling was undertaken to disaggregate the direct and indirect pathways of the associations.

Results

Higher community-level SES was associated with better cognitive function (β = 0.562, 95% CI = 0.390, 0.734), and this significant association was only present in rural participants, not in urban participants. Furthermore, we discovered the mediating effects of outdoor exercise facilities within communities (β = 0.023, 95% CI = 0.000, 0.056) and individual-level SES (β = 0.108, 95% CI = 0.057, 0.156) to explain the relationship between community SES and cognitive function.

Conclusions

These findings highlight the importance of community environmental interventions in maintaining individuals’ cognitive health in China, especially for older adults. Our results provided solid empirical evidence for reducing mental health inequalities in China, and suggested that developing an aging-friendly environment and properly distributing community resources are important to improve cognitive function of older adults.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12877-022-02946-3.

COVID-19 Protective Behaviors: The Role of Living Arrangements and Localities

Objectives:

Guided by the human-ecological model, we aimed to identify contextual factors related to protective behaviors during the COVID-19 outbreak.

Method:

Data are based on a nationally representative survey of adults aged 50+ in Israel during the COVID-19 outbreak (N = 1,019). Regression models predicted three behaviors: using hand sanitizers and masks, stocking up food, and avoiding social meetings. The independent variables were living arrangements (microsystems) and type of localities (macrosystems).

Results:

Participants who lived alone or lived in rural localities were less likely to adopt protective measures.

Conclusion:

Policy makers should pay particular attention to adults who live alone or live in rural areas as they might be less likely to adopt protective behaviors and face higher health risks during the pandemic.