The impact of changes in different aspects of social capital and material conditions on self-rated health over time: A longitudinal cohort study

Individual aspects of social capital have been shown to have significant associations with health outcomes. However, research has seldom tested different elements of social capital simultaneously, whilst also adjusting for other well-known health determinants over time. This longitudinal individual-level study investigates how temporal changes in social capital, together with changes in material conditions and other health determinants affect associations with self-rated health over a six year period. We use data from the British Household Panel Survey, a randomly selected cohort which is considered representative of the United Kingdom's population, with the same individuals (N = 9303) providing responses to identical questions in 1999 and 2005. Four measures of social capital were used: interpersonal trust, social participation, civic participation and informal social networks. Material conditions were measured by total income (both individual and weighted household income), net of taxation. Other health determinants included age, gender, smoking, marital status and social class. After the baseline sample was stratified by health status, associations were examined between changes in health status and changes in all other considered variables. Simultaneous adjustment revealed that inability to trust demonstrated a significant association with deteriorating self-rated health, whereas increased levels of social participation were significantly associated with improved health status over time. Low levels of household and individual income also demonstrated significant associations with deteriorating self-rated health. In conclusion, it seems that interpersonal trust and social participation, considered valid indicators of social capital, appear to be independent predictors of self-rated health, even after adjusting for other well-known health determinants. Understandably, how trust and social participation influence health outcomes may help resolve the debate surrounding the role of social capital within the field of public health.     

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.     

Social determinants of health – A question of social or economic capital? Interaction effects of socioeconomic factors on health outcomes

Social structures and socioeconomic patterns are the major determinants of population health. However, very few previous studies have simultaneously analysed the "social" and the "economic" indicators when addressing social determinants of health. We focus on the relevance of economic and social capital as health determinants by analysing various indicators. The aim of this paper was to analyse independent associations, and interactions, of lack of economic capital (economic hardships) and social capital (social participation, interpersonal and political/institutional trust) on various health outcomes. Data was derived from the 2009 Swedish National Survey of Public Health, based on a randomly selected representative sample of 23,153 men and 28,261 women aged 16-84 year, with a participation rate of 53.8%. Economic hardships were measured by a combined economic hardships measure including low household income, inability to meet expenses and lacking cash reserves. Social capital was measured by social participation, interpersonal (horizontal) trust and political (vertical/institutional trust) trust in parliament. Health outcomes included; (i) self-rated health, (i) psychological distress (GHQ-12) and (iii) musculoskeletal disorders. Results from multivariate logistic regression show that both measures of economic capital and low social capital were significantly associated with poor health status, with only a few exceptions. Significant interactive effects measured as synergy index were observed between economic hardships and all various types of social capital. The synergy indices ranged from 1.4 to 2.3. The present study adds to the evidence that both economic hardships and social capital contribute to a range of different health outcomes. Furthermore, when combined they potentiate the risk of poor health.     

A multilevel analysis of social capital and self-rated health: Evidence from the British Household Panel Survey

Social capital is often described as a collective benefit engendered by generalised trust, civic participation, and mutual reciprocity. This feature of communities has been shown to associate with an assortment of health outcomes at several levels of analysis. The current study assesses the evidence for an association between area-level social capital and individual-level subjective health. Respondents participating in waves 8 (1998) and 9 (1999) of the British Household Panel Survey were identified and followed-up 5 years later in wave 13 (2003). Area social capital was measured by two aggregated survey items: social trust and civic participation. Multilevel logistic regression models were fitted to examine the association between area social capital indicators and individual poor self-rated health. Evidence for a protective association with current self-rated health was found for area social trust after controlling for individual characteristics, baseline self-rated health and individual social trust. There was no evidence for an association between area civic participation and self-rated health after adjustment. The findings of this study expand the literature on social capital and health through the use of longitudinal data and multilevel modelling techniques.     

Bonding versus bridging social capital and their associations with self rated health: a multilevel analysis of 40 US communities

STUDY OBJECTIVE: Few studies have distinguished between the effects of different forms of social capital on health. This study distinguished between the health effects of summary measures tapping into the constructs of community bonding and community bridging social capital. DESIGN: A multilevel logistic regression analysis of community bonding and community bridging social capital in relation to individual self rated fair/poor health. SETTING: 40 US communities. PARTICIPANTS: Within community samples of adults (n = 24 835), surveyed by telephone in 2000-2001. MAIN RESULTS: Adjusting for community sociodemographic and socioeconomic composition and community level income and age, the odds ratio of reporting fair or poor health was lower for each 1-standard deviation (SD) higher community bonding social capital (OR = 0.86; 95% = 0.80 to 0.92) and each 1-SD higher community bridging social capital (OR = 0.95; 95% CI = 0.88 to 1.02). The addition of indicators for individual level bonding and bridging social capital and social trust slightly attenuated the associations for community bonding social capital (OR = 0.90, 95% CI = 0.84 to 0.97) and community bridging social capital (OR = 0.96, 95% CI = 0.89 to 1.03). Individual level high formal bonding social capital, trust in members of one's race/ethnicity, and generalised social trust were each significantly and inversely related to fair/poor health. Furthermore, significant cross level interactions of community social capital with individual race/ethnicity were seen, including weaker inverse associations between community bonding social capital and fair/poor health among black persons compared with white persons. CONCLUSIONS: These results suggest modest protective effects of community bonding and community bridging social capital on health. Interventions and policies that leverage community bonding and bridging social capital might serve as means of population health improvement.     

Social capital and core network ties: a validation study of individual-level social capital measures and their association with extra- and intra-neighborhood ties, and self-rated health

Research on social capital and health has assumed that measures of trust, participation, and perceived cohesion capture aspects of people's neighborhood social connections. This study uses data on the personal networks of 2707 Montreal adults in 300 different neighborhoods to examine the association of socio-demographic and social capital variables with the likelihood of having core ties, core neighborhood ties, and high self-rated health (SRH). Persons with higher household income were more likely to have core ties, but less likely to have core neighborhood ties. Persons with greater diversity in extra-neighborhood network capital were more likely to have core ties, and persons with greater diversity in intra-neighborhood network capital were more likely to have core neighborhood ties. Generalized trust, perceived neighborhood cohesion, and extra-neighborhood network diversity were shown associated with high SRH. Conventional measures of social capital may not capture network mechanisms. Findings suggest a critical appraisal of the mechanisms linking social capital and health, and the further delineation of network and psychosocial mechanisms in understanding these links.     

Social inequality and health: the role of social capital

The aim of the article is to examine whether and to what degree the unequal distribution of social capital in the population explains the relationship between socioeconomic position and health in Norway. Theoretical insight and empirical evidence seem to suggest that social capital mediates the effect of socioeconomic position on health outcomes. However, only a few studies have addressed this question and those that have done so have used few and simple indicators of social capital. This study is based on a nationwide cross-sectional survey (N = 3190) commissioned by Statistics Norway. The survey was designed to cover a comprehensive set of variables measuring different aspects of the theoretical construct of social capital. Two health outcomes, self-perceived health and longstanding illness, were analysed. The results showed that the mediating role of social capital between socioeconomic position and health was negligible for both health outcomes. After controlling for socio-demographic variables and socioeconomic position, only neighbourhood satisfaction and generalised trust showed a significant association with self-perceived health, whereas none of the social capital variables had any significant association with longstanding illness. Some theoretical and methodological implications of the results are discussed.     

Social capital, the miniaturisation of community and self-reported global and psychological health

Social capital is often operationalised as social participation in the activities of the formal and informal networks of civil society and/or as generalised trust. Social participation and trust are two aspects of social capital that mutually affect each other, according to the literature. In recent years there has been an increased attention to the fact that generalised trust decreases for every new birth cohort that reaches adulthood in the USA, while social participation may take new forms such as ideologically much narrower single-issue movements that do not enhance trust. The phenomenon has been called "the miniaturisation of community". The effects of similar patterns in Sweden on self-reported health and self-reported psychological health are analysed. The odds ratios of bad self-reported global health are highest in the low-social capital category (low-social participation/low trust), but the miniaturisation of community and low-social participation/high-trust categories also have significantly higher odds ratios than the high-social capital category (high-social participation/high trust). The odds ratios of bad self-reported psychological health are significantly higher in both the low-social capital category and the miniaturisation of community category compared to the high-social capital category, while the low-social participation/high-trust category does not differ from the high-social capital reference group.     

Social capital and health. A study of adult twins in the U.S

BACKGROUND: A growing number of studies have suggested a link between social capital and health. However, the association may reflect confounding by factors, such as personality or early childhood environment, that are unmeasured prior common causes of both social capital and health outcomes. The purpose of this study was to investigate the impact of social capital on physical and mental health among adult twins in the U.S. METHODS: A cross-sectional national survey of twins within the National Survey of Midlife Development in the U.S. (MIDUS), 1995--1996 was analyzed in 2007. The study population included 944 twin pairs (37.2% monozygotic [MZ] and 62.8% dizygotic [DZ]). Data were obtained on individual-level social capital variables (social trust, sense of belonging, volunteer activity, and community participation); health outcomes (perceived physical and mental health, depressive symptoms and major depression); and individual covariates (age, gender, race, education, working status, and marital status). A fixed-effects model was used to examine health status among twin pairs who were discordant on levels of social capital. RESULTS: In the individual data analysis, social trust, sense of belonging, and community participation were each significantly associated with health outcomes. In the fixed-effects model, physical health remained significantly positively associated with social trust among MZ and DZ twins. However, major depression was not associated with social capital. CONCLUSIONS: The present study is the first to find the independent positive effect of social trust on self-rated physical health using fixed-effects models of twin data. The results suggest that the association between social capital and physical health status is not explained by unobserved confounds, such as personality or early childhood environment.     

Social capital: an individual or collective resource for health?

Although it is now widely acknowledged that the social environment plays an important role in people's health and well-being, there is considerable disagreement about whether social capital is a collective attribute of communities or societies, or whether its beneficial properties are associated with individuals and their social relationships. Using data from the European Social Survey (22 countries, N = 42,358), this study suggests that, rather than having a contextual influence on health, the beneficial properties of social capital can be found at the individual level. Individual levels of social trust and civic participation were strongly associated with self-rated health. At the same time, the aggregate social trust and civic participation variables at the national level were not related to people's subjective health after controlling for compositional differences in socio-demographics. Despite the absence of a main contextual effect, the current study found a more complex cross-level interaction for social capital. Trusting and socially active individuals more often report good or very good health in countries with high levels of social capital than individuals with lower levels of trust and civic participation, but are less likely to do so in countries with low levels of social capital. This suggests that social capital does not uniformly benefit individuals living in the same community or society.     

Social capital and lack of belief in the possibility to influence one's own health: a population-based study

OBJECTIVES: To study the impact of social capital (social participation and trust) on lack of belief in possibility to influence health. METHODS: The Scania 2000 public-health survey is a cross-sectional, postal questionnaire study including 13,604 persons aged 18-80 years which was conducted in 2000 by the regional healthcare authorities in Region Sk?ne, southern Sweden, to investigate health-related risk factors in the population. A logistic regression model was used to investigate the association between social capital and lack of belief in possibility to influence health. The multivariate analyses analysed the importance of confounders on the differences in lack of belief in possibility to influence health according to the social capital variables. RESULTS: In total, 31.0% of all men and 33.5% of all women lack belief in the possibility to influence their own health. Lack of belief in possibility to influence health was positively associated with both low social participation and low trust, although stronger for social participation than for trust. CONCLUSIONS: Low levels of social capital, particularly low social participation, is positively associated with lack of belief in the possibility to influence one's own health.     

Community health workers improving diabetes outcomes in a rural Appalachian population

Community health workers (CHWs) play a key role in the emerging health infrastructure. They are successful in identifying individual or family needs and matching resources to help overcome the social determinants of health, and the lack of trust in the health care system. This study captures the CHW experience as research assistants and evaluates the effectiveness of CHWs’ health coaching and support in improving diabetes health outcomes. By being immersed in the culture and values of the population, CHWs offer research support to assure more representative client samples, increased adherence to study protocols, and in reducing attrition rates.     

Measuring dimensions of social capital: evidence from surveys in poor communities in Nicaragua

A dominant perspective in social capital research emphasizes a "structural" dimension of social capital, consisting of network connections, and a "cognitive" dimension, consisting of attitudes toward trust. Correspondingly, membership in organizations (i.e., membership density) and general trust in people (i.e., social trust) are two indicators commonly used to relate structural and cognitive social capital, respectively, to a variety of health and other outcomes. This study analyzed relationships between membership density, social trust and a more comprehensive set of household-level social capital indicators as well as selected civic and health behaviors in the context of Nicaragua. The sample of respondents was drawn from 6 communities and interviews were conducted with 482 heads of households, resulting in data on 2882 individuals. Factor analyses suggest that membership density loaded strongly (loading=0.81) onto an "organizational participation" factor which contained a number of qualitative characteristics of involvement, including bridging social capital. Further, this structural dimension of social capital appears to be a construct consisting of more than just informal social networks. However, factor analyses suggest that distinctions between levels of trust are warranted in Nicaragua: social trust loaded weakly (loading=0.32) onto a factor characterized by institutional trust in a factor analysis of trust items, and well below 0.30 in a factor analysis of both structural and cognitive dimensions of social capital. A nuanced understanding of these household-level indicators of structural and cognitive social capital held implications for civic and health behaviors. While membership density and institutional trust were positively related to an index of political engagement, social trust was either not related or negatively associated (among urban respondents). Similarly, social trust was associated with over 50% reduced odds of an additional childhood vaccinations whereas institutional trust was associated with increased odds (OR=1.7) of an additional vaccination. The findings highlight the complexity of social capital and the importance of exploring more comprehensive indicators.     

The impact of neighborhood social capital on life satisfaction and self-rated health: A possible pathway for health promotion?

Neighborhood social capital has repeatedly been linked to favorable health-outcomes and life satisfaction. However, it has been questioned whether it’s impact on health has been over-rated. We aim to investigate relationships between neighborhood social capital and self-rated health (SRH) and life satisfaction (LS) respectively, both directly and indirectly mediated via Sense of Coherence and self-esteem. Based on a cross-sectional population-survey (N=865) in a medium size Norwegian municipality, we specified a structural equation model (SEM) including the above-listed variables, while controlling for gender, age, education, income, and employment status. The applied model explains more variance in LS (46%) than in SRH (23%). Social capital has a stronger impact on life satisfaction than on health. The indirect pathway via SOC had the highest impact on life satisfaction, but no significant relationship to SRH. Self-rated health was more tightly linked to personal background variables. Enhancing social capital in the neighborhood might be a beneficial strategy to promote life satisfaction, as well as strengthening sense of coherence even in healthy communities     

Social capital and health and well-being in East Asia: a population-based study

How individual-level social capital relates to adult health and well-being was examined using data from a cross-sectional interview survey in East Asia (Japan, South Korea, Singapore, five areas in Mainland China, and Taiwan) in 2002-2004. The number of self-reported somatic symptoms, subjective health satisfaction, life satisfaction and social capital indicators, as well as socio-economic status (SES), were analyzed by a logistic regression model. Adjusting for SES, social capital measured by belonging to organizations and weakness in "norms of reciprocity" were related to a greater number of self-reported somatic symptoms (p<0.001 for both). Lack of trust in organizations (p<0.001) and of a person to consult (p=0.012) were related to poor health satisfaction. Lower "interpersonal trust" (p=0.016), weakness in "norms of reciprocity" (p<0.001) and lack of trust in organizations (p<0.001) were related to poor life satisfaction. Gender inequality was observed across countries, but the relationships varied according to the health indicator. Specifically, self-reported somatic symptoms were more numerous and health satisfaction was worse in women (p<0.001), but life satisfaction was worse in men (p=0.017). The analyses provide evidence that dimensions of social capital are positively associated with self-reported somatic symptoms and overall well-being in East Asian countries.     

Does social capital determine health? Evidence from eight transition countries

There is growing interest in the role of social relationships in explaining patterns of health. We contribute to this debate by investigating the impact of social capital on self‐reported health for eight countries from the Commonwealth of Independent States. We rely on three indicators of social capital at the individual level (trust, participation in local organisations, social isolation) and employ alternative procedures to estimate consistently the impact of social capital on health. The three social capital indicators are choice variables and are hence, by definition, endogenously determined. We attempt to circumvent the endogeneity problems by using instrumental variable estimates. Our results show that the individual degree of trust is positively and significantly correlated with health, this being true with least squares estimators as well as when relying on instrumental variable estimators with (and without) community fixed effects. Similarly, social isolation is negatively and significantly associated with health, irrespective of the procedure of estimation. On the other hand, the effect of being a member of a Putnamesque organisation is more ambiguous and usually not significantly related to health. Copyright © 2009 John Wiley & Sons, Ltd.     

Individual social capital, neighbourhood deprivation, and self-rated health in England

Individual social capital is increasingly considered to be an important determinant of an individual's health. This study examines the extent to which individual social capital is associated with self-rated health and the extent to which individual social capital mediates t.he relationship between neighbourhood deprivation and self-rated health in an English sample. Individual social capital was conceptualized and operationalized in both the social cohesion- and network resource tradition, using measures of generalized trust, social participation and social network resources. Network resources were measured with the position generator. Multilevel analyses were applied to wave 2 and 3 of the Taking Part Surveys of England, which consist of face-to-face interviews among the adult population in England (N(i) = 25,366 respondents, N(j) = 12,388 neighbourhoods). The results indicate that generalized trust, participation with friends and relatives and having network members from the salariat class are positively associated with self-rated health. Having network members from the working class is, however, negatively related to self-rated health. Moreover, these social capital elements are partly mediating the negative relationship between neighbourhood deprivation and self-rated health.     

Individual-level analysis of social capital and health: a comparison of Arab and Jewish Israelis

Discrepancies exist in existing research regarding the association between social capital and self-rated health, most of which has been undertaken in the developed world. The aim of this study is first to assess the levels of the various variables describing individual social capital in Jews and Arab residing in Israel, and second to assess the association between individual social capital and self-rated health in these two population groups. The data were obtained from an Israeli health interview survey (knowledge, attitudes and practices (KAP)) conducted during 2004-2005, which is based on 3,365 interviews with adult Jews and 985 adult Arabs. Social capital measures included social trust, neighborhood safety, perceived helpfulness, trust in local and national authorities and social support. Data were also obtained on self-rated health and socioeconomic and demographic variables. Multivariate logistic regression revealed that Jews reported higher levels of social trust, perceived helpfulness, trust in authorities, and social support compared to Arabs, after adjusting for demographic and socioeconomic variables. Social contacts, however, were reported more frequently in the Arab population. Neighborhood safety was similar in the two population groups. Among Jews, those reporting higher levels of individual social capital reported better self-rated health after adjusting for demographic and socioeconomic variables. Among Arabs, only those reporting higher levels of social support reported better self-rated health. In Israel, individual levels of social capital seem to be lower in the Arab minority than in the Jewish majority. Individual social capital was associated with better self-rated health mainly in the Jewish population and less so in the Arab population. Social capital factors may be associated with health to a higher extent in affluent populations with relatively high social capital and less so in low social capital and more traditional communities. More research is needed to verify these differences.     

Neighborhood economic conditions, social processes, and self-rated health in low-income neighborhoods in Texas: a multilevel latent variables model

This paper develops and tests a comprehensive model to explain the relationships of neighborhood economic indicators to multiple dimensions of neighborhood social and physical organization as well as the pathways through which neighborhood social and physical characteristics influence individual health outcomes. We hypothesized that neighborhood poverty would be associated with lower collective efficacy, lower social capital, higher degrees of social and physical disorder, worse social processes pertaining to children such as trust, and higher degrees of fear of crime and racism. Neighborhood social and physical characteristics were hypothesized to mediate the effect of neighborhood poverty on self-rated health, both directly and indirectly through their influence on neighborhood differences in social support and health behaviors, which in turn affect individual health. The results, based on data from low-income neighborhoods in Texas, USA generally supported the model and indicated that the effect of neighborhood impoverishment on health is mediated by social and physical neighborhood characteristics.     

Does area-based social capital matter for the health of Australians? A multilevel analysis of self-rated health in Tasmania

BACKGROUND: Material circumstances and collective psychosocial processes have been invoked as potential explanations for socioeconomic inequalities in health; and, linking social capital has been proposed as a way of reconciling these apparently opposing explanations. METHODS: We conducted multilevel logistic regression of self-rated health (fair or poor vs excellent, very good, or good) on 14 495 individuals living within 41 statistical local areas who were respondents to the 1998 Tasmanian Healthy Communities Study. We modelled the effects of area-level socioeconomic disadvantage and social capital (neighbourhood integration, neighbourhood alienation, neighbourhood safety, social trust, trust in public/private institutions, and political participation), and adjusted for the effects of individual characteristics. RESULTS: Area-level socioeconomic disadvantage was associated with poor self-rated health (beta = 0.0937, P < 0.001) an effect that was attenuated, but remained significant, after adjusting for individual characteristics (beta = 0.0419, P < 0.001). Social trust was associated with a reduction in poor self-rated health (beta = -0.0501, p = 0.008) and remained significant when individual characteristics (beta = -0.0398, P = 0.005) were included. Political participation was non-significant in the unadjusted model but became significant when adjusted for individual characteristics (beta = -0.2557, P = 0.045). The effects of social trust and political participation were attenuated and became non-significant when area-level socioeconomic disadvantage was included. CONCLUSION: Area-based socioeconomic disadvantage is a determinant of self-rated health in Tasmania, but we did not find an independent effect of area-level social capital. These findings suggest that in Tasmania investments in improving the material circumstances in which people live are likely to lead to greater improvements in population health than attempts to increase area-level social capital.