Contextual effect of different components of social capital on health in a suburban city of the greater Tokyo area: A multilevel analysis

Social Capital Promotes a Healthier Diet among Young Adults by Reducing Psychological Distress

Studies have revealed the links between social capital and diet. However, the mediating role of psychological distress in this relationship has been understudied. This study aims to identify direct and indirect relationships between social capital and adherence to the Mediterranean diet among Lithuanian young adults and identify the mediating role of psychological distress in this relationship. Data were collected from 1336 young adults, aged 18-36 years; 40.5% were males. MEDAS was used to measure adherence to a healthy diet. Social capital was measured by eight separate items in terms of family support, social support, social cohesion, social trust, communication, collaboration, participation, and distant communication. Kessler's six-item scale was used to assess psychological distress. Higher family support (β = 0.105), higher social participation (β = 0.294), and lower psychological distress (β = 0.073) directly predicted higher adherence to the Mediterranean diet. Social capital was indirectly related to adherence to the Mediterranean diet, with standardized effect sizes of 0.02-0.04, indicating small effect sizes. Thus, psychological distress mediates the relationship between social capital and a healthy diet. Given that social capital is related to psychological health and both directly and indirectly predicts healthy behavior in young adults, further longitudinal and experimental research is required to measure the effects of the intervention on incorporating, facilitating, encouraging, and implementing measures to strengthen the social connection between people and groups of people within the community, neighborhood, and organizations.

Neighborhood social capital and self-rated mental health: Disparities between migrants and native residents in Beijing

Introduction

Although the impact of neighborhood social capital on mental health has long been recognized, the extent to which the impact differs between immigrants and local residents remains a puzzle. This study aims to bridge the gap by comparing internal migrants who are restricted by their household registration (hukou) status, and urban natives in China.

Methods

Using self-rated mental health and social capital survey data collected in 26 neighborhoods in Beijing, this study examines the mental health outcomes of three types of neighborhood social capital, including social networks, shared norms and mutual trust, and social support.

Results

The study finds that the hukou status of immigrants moderates the effect of neighborhood social capital on mental health, and that the internal migrants in China experience less mental health benefit of neighborhood social capital than urban natives. Compared with urban natives, neighborhood social networks have less positive effect on migrants' mental health than that of urban natives.

Conclusion

The findings suggest that policy makers can improve the mental health of migrants through social capital building on the premise of eliminating the restrictions of hukou system on the migrants' right to participate in neighborhood activities and to access neighborhood services.

Online social capital, offline social capital and health: Evidence from China

The fast-developing Internet is changing the way people interact, this new phenomenon helps people build and accumulate online social capital. However, the influence of online social capital on individual health is controversial. Based on the social capital theory, this study examined the effect of online social capital on health in subgroups with different levels of offline social capital. Data from the China Family Panel Studies of 2016 were used (N = 13,910), and the propensity score matching approach was used to address potential endogeneity problems. The results show that offline social capital had significant positive associations with individual health; although online social capital had few effects on individual health overall, significant health effects of online social capital were observed in subgroups with different offline social capital levels. In subgroups with less general trust and neighborhood social capital, more online social capital was associated with less depression; while in subgroups with more neighborhood social capital, more online social capital was associated with an elevated probability of two-week morbidity. Our findings further clarify the relationship between online/offline social capital and individual health. Online social capital can be considered as a supplement of offline social capital when it comes to health promotion, and more online contact should be encouraged when offline social capital of individuals or within the community is scarce.

Are both individual-level and county-level social capital associated with individual health? A serial cross-sectional analysis in China, 2010-2015

OBJECTIVES

We aimed to examine the associations of both individual-level and county-level social capital with individual health in China during a period of rapid economic growth.

DESIGN AND SETTING

A serial cross-sectional study in China.

PARTICIPANTS AND METHODS

The participants were 42 829 Chinese adults (aged ≥18 years) from the 2010, 2012, 2013 and 2015 Chinese General Social Survey. The outcomes were self-rated physical and mental health in all time points. We assessed social capital by the individual-level and county-level indicators, including frequency of socialising, civic participation and trust. We conducted multilevel binary logistic regression models to examine the associations of individual-level and county-level social capital with self-rated physical and mental health.

RESULTS

At the individual level, high frequency of socialising (2010-OR: 1.49, 95% CI: 1.33 to 1.66; 2012-OR: 1.39, 95% CI: 1.26 to 1.54; 2013-OR: 1.28, 95% CI: 1.15 to 1.42; 2015-OR: 1.36, 95% CI: 1.23 to 1.50) and high trust (2010-OR: 1.34, 95% CI: 1.22 to 1.47; 2012-OR: 1.30, 95% CI: 1.18 to 1.42; 2013-OR: 1.21, 95% CI: 1.10 to 1.33; 2015-OR: 1.41, 95% CI: 1.28 to 1.55) was significantly associated with good physical health in all years. At the individual level, high frequency of socialising (2010-OR: 1.27, 95% CI: 1.14 to 1.42; 2012-OR: 1.21, 95% CI: 1.09 to 1.34; 2013-OR: 1.30, 95% CI: 1.17 to 1.45; 2015-OR: 1.35, 95% CI: 1.22 to 1.50) and high trust (2010-OR: 1.47, 95% CI: 1.34 to 1.61; 2012-OR: 1.42, 95% CI: 1.30 to 1.56; 2013-OR: 1.36, 95% CI: 1.24 to 1.49; 2015-OR: 1.43, 95% CI: 1.30 to 1.57) was also significantly associated with good mental health in all years. No evidence showed that the associations of individual-level frequency of socialising and trust with physical and mental health changed over time. There were no consistent associations of individual-level civic participation or any county-level social capital indicators with physical or mental health.

CONCLUSION

The positive associations of individual-level social capital in terms of socialising and trust with physical and mental health were robust during a period of rapid economic growth. Improving individual-level socialising and trust for health promotion could be a long-term strategy even within a rapidly developing society.

Small but protective social capital against suicide ideation in poor communities: A community-based cross-sectional study

Coupled with the lowest level of social connectedness, South Korea has the highest suicide rate among the Organization for Economic Co-operation and Development countries. A possible link between community and suicide is social capital imprinted in social connectedness. This study explores whether social capital is protective against suicide ideation in relation to the poverty level of communities, and whether the associations are specific to certain elements of social capital.A total of 908 participants were included to assess cross-sectional association of social capital at individual level with suicide ideation by comparing between poor (government-leased apartments) and non-poor communities (nongovernment-leased apartments). Logistic regression analyses were performed to examine various social capital dimensions in relation to suicide ideation.Suicide ideation was far higher among those living in the poor communities (poor communities 12%; non poor communities 6.3%) and the level of social capital was lower in the poor communities. Nevertheless, the protective effect of social capital, in particular, the cognitive dimension against suicide ideation was demonstrated only in the poor communities (eg, odds ratio = 0.27, 95% confidence interval: 0.12-0.58 for trust in the poor communities). Low income was significantly associated with suicide ideation only in the poor communities, but depression and resilience were associated with suicide ideation both in the poor and non-poor communities.To increase the reliability of the results, established measures based on relevant literature were utilized, but measures on bridging social capital and social network might have relatively low reliability.As to protection against suicide ideation, the extent of reliance on social capital was higher in poor communities than in non-poor communities, in particular, the cognitive dimension was likely to activate in this regard.

Association between Neighborhood Environment and Quality of Sleep in Older Adult Residents Living in Japan: The JAGES 2010 Cross-Sectional Study

Poor sleep is associated with lifestyle, however, few studies have addressed the association between sleep quality and the neighborhood environment. This study aimed to investigate the associations between living environment factors and sleep quality in older people. Participants were community-dwelling people aged ≥65 years who participated in the 2010 Japanese Gerontological Evaluation Study. The data of 16,650 people (8102 men, 8548 women) were analyzed. Sleep quality (good or poor) was evaluated using a self-administered questionnaire. Multilevel Poisson regression analysis stratified by depressive status (measured by the Geriatric Depression Scale-15 [GDS]) was conducted with sleep quality as the dependent variable and social and physical environmental factors as explanatory variables. The 12,469 non-depressive respondents and 4181 depressive respondents were evaluated. The regression analysis indicated that non-depressive participants slept better if they lived in environments with few hills or steps (prevalence ratio [PR] = 0.75, 95% CI: 0.56–0.9) and with places where they felt free to drop in (PR = 0.51, 95% CI: 0.26–0.98). For depressive participants, these associations were not evident. Living alone, poor self-rated health, low income, and unemployment were associated with poor sleep quality. In addition to support with these individual factors, improving environmental factors at the neighborhood level may improve the sleep quality of community-dwelling older adults.

Social capital and physical health: An updated review of the literature for 2007-2018

PURPOSE

Social capital is frequently indicated as a determinant of population health. Despite an increase in the frequency of public health studies including such measures, our understanding of social capital's effects on health remains unclear. In 2008, a systematic review of the "first decade" of research on social capital and health was published in the textbook Social Capital and Health. Our study intends to update and expand upon this original review to account for developments in the literature over the second decade of research on social capital and health.

METHODS

We employed a systematic review of empirical studies investigating the relationship between measures of social capital and physical health outcomes published between January 1, 2007 and December 31, 2018. To identify potential studies, we conducted searches of PubMed, Embase, and PsychINFO databases in January 2019 using combinations of "social capital" and "physical health" search terms.

RESULTS

We identified 1,608 unique articles and reviewed 145 studies meeting our inclusion criteria. The most frequently examined health condition was self-reported health (57%), followed by mortality (12%), cardiovascular diseases (10%), obesity (7%), diabetes (6%), infectious diseases (5%), and cancers (3%). Of these studies, 127 (88%) reported at least partial support for a protective association between social capital and health. However, only 41 (28%) reported exclusively positive findings. The majority (59%) of results were mixed, suggesting a nuanced relationship between social capital and health. This finding could also be indicative of differences in study design, which showed substantial variation.

CONCLUSIONS

Despite limitations in the literature, our review chronicles an evolution in the field of social capital and health in terms of size and sophistication. Overall, these studies suggest that social capital may be an important protective factor for some physical health outcomes, but further research is needed to confirm and clarify these findings.

Social capital in Japan: What characteristics do public health nurses see in their communities?

AIM

A concept of social capital that accounts for a community's cultural background and incorporates social capital into public health nursing practice are needed. This study aimed to describe the characteristics of social capital in the context of public health nursing in Japan.

METHODS

The study interviewed 11 veteran public health nurses from five municipalities across Japan and undertook a qualitative research analysis. A digital voice recorder was used to collect qualitative data by using a background data sheet and semistructured interviews. Trustworthiness in interpreting the data was ensured by conducting 13 additional interviews with residents and collating the two sets of results.

RESULTS

All the participants were female: 10 were veterans with ≥15 years' experience. Nine worked in management. The methods yielded six categories: (i) the richness of the interactions among the residents; (ii) the community residents who showed concern for those in need; (iii) community civic activities; (iv) the residents' willingness to contribute to the community; (v) the health promotion volunteers who work alongside the public health nurses; and (vi) an enriched community environment.

CONCLUSION

The results contribute to an understanding of social capital in the context of public health nursing activities and further research on social capital. It also is discussed how social capital can be incorporated into public health nursing activities in the future.

Positive and negative associations of individual social capital factors with health among community-dwelling older people

AIM

Previous literature has found positive correlations between social capital and health in older adults, fewer studies have investigated the subdimension's effects of social capital on health. We aimed to determine the individual social capital subfactors in community-dwelling older adults in Japan, and to analyze the associations of these factors with physical and mental health.

METHOD

We sent a self-administered questionnaire assessing their perception of social group activity as the individual social capital, and mental and physical health (measured by the Medical Outcomes Study Short Form-36) to 4320 randomly selected older people.

RESULTS

There were 1836 valid responses. We clarified that people who participated in any social activity group were in significantly better physical and mental health compared with the people who did not. By the factor analysis of the perception for the social group activity, we identified three components of the individual social capital aspect that we termed harmonious, hierarchic and diversity. Using multiple linear regression, we found the hierarchic aspect was significantly negatively associated with mental health, whereas the harmonious aspect was significantly positively associated with mental and physical health, and diversity was significantly positively associated with mental health.

CONCLUSION

As the previous research literature on social capital has mainly emphasized its positive health consequences, the present findings provide a novel demonstration that some aspects of individual social capital can have negative associations with health outcomes in community-dwelling older people. For the practical application of promoting a healthier society, it is important to consider both the positive and negative sides of social capital. Geriatr Gerontol Int 2017; 17: 2427-2434.

Relationships of Community and Individual Level Social Capital with Activities of Daily Living and Death by Gender

This study determined whether there is an association between social capital and a composite outcome of decline in Activities of Daily Living (ADL) and death by gender. A prospective 3.5 year cohort study was conducted in a rural town in Japan. The study participants were 984 individuals aged 65 years and older with not impaired on ADL at 2010 baseline survey. Social participation and generalized trust were measured as social capital. The individual level responses were dichotomized and aggregated into the community level (eight areas). Multilevel logistic regression adjusting for covariates revealed that social participation at the individual level was significantly associated with higher odds of composite outcome (OR of “not participate” = 1.97, 95% CI = 1.38–2.81). Regarding generalized trust, only in men, there was an inverse association at the community level (OR of “low” = 0.55, 95% CI = 0.32–0.96), and a positive association at the individual level (OR of “tend to be careful” = 2.22, 95% CI = 1.27–3.90). These results suggest that social capital were associated with a decline in ADL and death and that the association may differ by gender.

Relations of participation in organized activities to smoking and drinking among Japanese youth: contextual effects of structural social capital in high school

OBJECTIVES

This cross-sectional study examined the effect of school-level structural social capital on smoking and drinking among Japanese youth.

METHODS

Self-administered anonymous questionnaires were distributed to 3248 students at 29 high schools across Okinawa, Japan in 2008. Structural social capital was measured by students' participation in organized activities: student council, extracurricular activities, volunteer activities, community sports clubs, and youth associations. Contextual-level social capital was measured by aggregated school-level individual responses.

RESULTS

At the individual level, extracurricular activity participation was negatively associated with smoking and drinking, whereas participation in youth associations was positively associated with smoking and drinking. School-level extracurricular activity participation was negatively associated with smoking among boys, whereas school-level participation in youth associations was positively associated with smoking among boys and girls and drinking among boys.

CONCLUSIONS

This study suggests that structural social capital measured by participation in organized activities, especially extracurricular activities, might be an important way for youths to attain good health. This study also supports the idea that particular type of activities, such as youth associations, can lead to the so-called "dark side of social capital".

Cross-sectional analysis of self-efficacy and social capital in a community-based healthy village project in Santa Cruz, Bolivia

BACKGROUND

An assessment of self-efficacy and social capital may have the potential to detect an effect of dynamic, complex and comprehensive collective actions in community-based health promotion. In 2003, a healthy village project was launched in Santa Cruz, Bolivia with technical assistance from the Japan International Cooperation Agency (JICA). The originally developed FORSA (Fortalecimiento de Redes de Salud) model accounted for participatory processes in which people could improve their health and well-being through individual behavioral changes and family/community-driven activities. This study aimed to examine the extent of self-efficacy and social capital obtained via project activities by a cross-sectional analysis.

METHODS

We randomly selected 340 subjects from the healthy village project site and 113 subjects from a control area. Both groups were interviewed using the same structured questionnaire. Self-efficacy was assessed with a General Self-Efficacy Scale (GSES), while social capital was measured as the frequency of formal group participation in community meetings during the past three months, perceived social solidarity, and general trust.

RESULTS

The study results showed that the participants in the project site had higher self-efficacy and social capital compared to those in the control site. The number of times a subject participated in the health committee activities was positively associated with the self-efficacy scale. Regarding social capital, females and lower-educated people were more likely to have had more frequent participation in formal groups; males and higher-educated participants showed less formal group participation, but more generosity to contribute money for the community. The main perceived benefit of participation in formal group activities varied among individuals.

CONCLUSION

The findings suggest that people in the healthy village project site have higher self-efficacy, especially those with active participation in the health committee activities. To recruit more participants in future healthy village projects, we should consider the gender and level of education, and match the perceived benefits of participants accordingly.

Social capital, socioeconomic status, and health-related quality of life among older adults in Bogotá (Colombia)

OBJECTIVE

The main goal of this study was to evaluate the relationship between levels of cognitive social capital and health-related quality of life (HRQOL).

METHODS

A multilevel, cross-sectional study was conducted in 2007 in Bogotá Colombia. A total of 1,907 older adults completed the Spanish version of the Short Form of Health Survey (SF-8) to assess HRQOL. Cognitive dimension of social capital was assessed. Hierarchical linear regressions were conducted to determine the associations between social capital variables and HRQOL.

RESULTS

Only 20% to 25% of the population reported trust in others and shared values. A total of 93% percent reported that people in their neighborhood would try to take advantage of them if given a chance. Higher social capital indicators were positively associated with the mental and physical dimensions of HRQOL.

DISCUSSION

Results from this study support evidence on the disintegration of the Colombian society, which may be influenced by high levels of social inequality.

Neighborhood contextual factors for smoking among middle-aged Japanese: a multilevel analysis

The purpose of this study is to explore neighborhood contextual factors in terms of smoking behaviors among middle-aged Japanese, by using a multilevel analysis. Subjects were Japanese men and women, between 40 and 59 years of age (40,961 for the cross-sectional analysis, and 9,177 for the longitudinal analysis), nested in 39 neighborhoods (Kyuson). The results showed that women in a less residentially stable neighborhood were more likely to be smokers. No associations were seen between current smoking and neighborhood deprivation; however, women in the most deprived neighborhood were more likely to quit smoking. This study is the first to demonstrate the associations between neighborhood environment and current smoking or smoking cessation, in a Japanese setting. The findings imply that policy makers should consider targeting neighborhood conditions in order to help reduce smoking prevalence, especially among women.

Social capital and health: implication for health promotion by lay citizens in Japan

A non-profit organization was formed in 2009 by lay citizens of Nagahama, Japan in response to a community-based genome-epidemiologic study, the ‘Nagahama Zero(0)-ji Prevention Cohort Project (N0PCP)’. This organization aims to promote health by taking advantage of citizens’ social networks. The Ottawa Charter for Health Promotion affirms the importance of creating supportive environments and coordinating social relationships. Supportive environments (infrastructure) and social relationships (resources) work together as aspects of social capital. This study sought to examine the association between self-rated health and social capital, at both individual and neighborhood levels, and to discuss suitable health promotion strategies for local circumstances.

A cross-sectional survey was conducted in 2011, using a self-administered postal questionnaire. Social capital indicators included aspects of support in the environment (social support, neighborhood connectedness, informal social controls, neighborhood trust, general trust, and attachment to place) and social relationships (number of activities; participation in neighborhood activities; participation in recreational activities; and social leverage regarding physical health, mental health, and acquisition of health information). Neighborhood-level social capital was calculated as the percentage of individuals in a neighborhood in the ‘high social capital’ category. At the individual level, participation in recreational activities, high general trust, and discussion regarding mental health problems with family members were associated with self-rated health positively, whereas discussion of mental health problems with acquaintances had a negative correlation. At the neighborhood level, a highly supportive environment did not contribute to good health, whereas aggregated attachment to place had a positive correlation. There were no significant inter-regional health differences.

The results of this study suggest that health promotion activities should aim at promoting the formation of empathetic friendships through individual networks, based on bringing individuals who need support to compatible places. Attachment to place should be incorporated into activities as an important and effective tool.

A multilevel analysis of social capital and self-rated health: evidence from China

We investigate relationship between social capital and self-rated health (SRH) in urban and rural China. Using a nationally representative data collected in 2005, we performed multilevel analyses. The social capital indicators include bonding trust, bridging trust, social participation and Chinese Communist Party membership. Results showed that only trust was beneficial for SRH in China. Bonding trust mainly promoted SRH at individual level and bridging trust mainly at county level. Moreover, the individual-level bridging trust was only positively associated with SRH of urban residents, which mirrored the urban-rural dual structure in China. We also found a cross-level interaction effect of bonding trust in urban area. In a county with high level of bonding trust, high-bonding-trust individuals obtained more health benefit than others; in a county with low level of bonding trust, the situation was the opposite.