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

Does Sport Participation Protect Adolescents from Alcohol Consumption? A Scoping Review

(1) Background: Participation in youth sports is believed to protect against alcohol consumption. Although this concept has been questioned for over 40 years, the review of methodologically reliable evidence data is scarce. This review summarizes the state of knowledge on the association between practicing sports and alcohol consumption among adolescents (10-19 years old) and its moderators. (2) Methods: The review covers only random-sample-based and population research. A systematic search was conducted on Scopus, PubMed, and WoS, for articles published between 2000 and 2021. From the 1944 identified records, 139 advanced to the full-text review, and 32 to the final data extraction and quality review. (3) Results: About two-thirds of the studies, including all the longitudinal ones, showed a positive association between sport participation and alcohol consumption. The most common mediators were gender (males were at higher risk), discipline (odds for team sports were higher, but professionalization could reduce it), and race, which intersected with gender, putting white males at the highest risk. (4) Conclusions: Further longitudinal research based on random samples using standardized indicators, including psychological and social variables, may provide more consistent outcomes and allow for the identification of mediating mechanisms.

School- and community-level protective factors for resilience among chronically maltreated children in Japan

PURPOSE

Few studies have investigated how school- and community-level modifiable factors might enhance resilience, defined as an ability to recover from and cope with adversity, among chronically maltreated pre-adolescent children. This study aims to investigate school and community factors that can increase children's resilience following maltreatment.

METHODS

We used data from the Adachi child health impact of living difficulty (A-CHILD) Study, a population-based prospective longitudinal study starting with first-grade children in all public elementary schools in Adachi City, Tokyo, Japan in 2015. Children who experienced chronic maltreatment while in 1st and 4th grades and whose resilience scores were available at those grades were included in the analysis (N = 789). Crude and multiple regressions were used to examine associations of child-reported school factors (i.e., school social capital, number of friends to consult with) and community factors (i.e., having a non-parental role model and supportive adult, having a third place, which is defined as a place other than home to spend time after school) with parent-reported resilience at 4th grade. These regressions were also performed stratified by sex.

RESULTS

School social capital and having a non-parental role model at 4th grade were positively associated with resilience after adjusting covariates, including resilience at 1st grade [coefficient = 3.63, 95% confidence intervals (CI) 2.26-4.99; coefficient = 2.52, 95% CI 0.57-4.38, respectively]. Analysis by sex revealed that having a supportive adult, but not a role model, was associated with resilience among girls (coefficient = 5.50, 95% CI 0.20-10.8).

CONCLUSIONS

The findings suggest that school and community factors can promote resilience following child maltreatment, and these factors are different between boys and girls.

Multiple Group Membership, Optimistic Bias, and Infection Risk in the Context of Emerging Infectious Diseases

Abstract. Background: Understanding psychosocial factors which impact responses to emerging infectious diseases (EIDs) is vital in managing epidemics and pandemics. Two under-researched areas in this field are the interactive roles of optimistic bias (underestimation of the likelihood of negative events occurring to the self, relative to others) and group membership (a factor observed to be psychologically protective, but infection risk enhancing). Aims: The current study aimed to test the relationships between optimistic bias and membership of multiple groups upon EID-related emotional and psychological responses and behavioral intentions. Methods: Participants from the UK and US ( N = 360) rated how they would evaluate and respond to a fictitious EID immediately before the 2020 COVID-19 lockdowns in a correlational study. Results: Negative relationships were observed between optimistic bias and perceived infection vulnerability, infection prevention strategies, and perceived EID severity. Multiple group membership correlated negatively with germ avoidance, but positively with emotional responses such as disgust and increased perceived vulnerability to infection – factors linked to avoiding infection. Multiple group memberships and optimistic bias were unrelated. Limitations: The study focussed on a fictitious disease and relies on cross-sectional data and behavioral intentions. Conclusions: These findings build upon the small evidence base on the role of optimistic bias in EID management and suggest that multiple group membership is unlikely to increase optimistic bias. The theoretical and practical implications of the findings for EID management are discussed.

The Association of Gender Role Attitudes and Risky Drinking: Changes in the Relationship between Masculinity and Drinking in Korean Young Men

Recently, younger men in Korean society tend not to view drinking as a proud feature of men who work. The relationship between gender role attitudes and high-risk drinking is expected to change accordingly. An online survey was conducted in January-February 2022, and the frequency of drinking, the amount of drinking, and traditional gender role attitudes, such as "men should be independent and women should take care of the children", were measured. Participants were 786 men aged between 19 and 69 years. When comparing men in their 20s and 30s with those in their 40s to 60s, the younger men reported drinking relatively high amounts of alcohol in one place, and older men had a relatively high frequency of drinking. High-risk drinking was significantly higher in the older group. Gender role attitudes were more traditional in the older group and were a predictor of high-risk drinking in older men, but there was no significant relationship between the two variables in the younger age group. The results indicate that different generations have different perceptions of how men should drink. In addition to more detailed qualitative research on drinking motivation by generation, research on whether similar changes are occurring in other countries is needed.

Social capital and health information seeking in China

Background

People’s potentials to seek health information can be affected by their social context, such as their social networks and the resources provided through those social networks. In the past decades, the concept of social capital has been widely used in the health realm to indicate people’s social context. However, not many such studies were conducted in China. Chinese society has its special quality that many Western societies lack: people traditionally render strong value to family relations and rely heavily on strong social ties in their social life. Therefore, the purpose of this study was to examine the association between different types of social capital and health information-seeking behavior (HISB) in the Chinese context. The different types of social capital were primarily bonding and bridging, as well as cognitive and structural ones.

Methods

Our analysis is based on a total of 3090 cases taken from the Health Information National Trends Survey (HINTS) – China, 2017. Dataset was weighted due to the overrepresentation of female respondents and hierarchical multiple regression analyses as well as binary logistic regression tests were operated to examine the associations between people’s social capital and their HISB.

Results

Some aspects of social capital emerged as positive predictors of HISB: information support (standing in for the cognitive component of social capital) promoted health information seeking, organization memberships (standing in for the structural component) encouraged cancer information seeking, and both the use of the internet and of traditional media for gaining health information were positively linked with bridging networks and organization memberships. Bonding networks (structural component) were not correlated with any other of the key variables and emotional support (cognitive social capital) was consistently associated with all health information-seeking indicators negatively.

Conclusions

Social capital demonstrated significant and complex relationships with HISB in China. Structural social capital generally encouraged HISB in China, especially the bridging aspects including bridging networks and organization memberships. On the other hand, emotional support as cognitive social capital damaged people’s initiatives in seeking health-related information.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12889-022-13895-2.

Organized Sport Activities of 11 to 15-Year-Old Adolescents: Trends from 2010-2018 and Socioeconomic Context

The aim of this paper was to analyse the trends in the participation of Czech adolescents in organized sport activities in relation to the socioeconomic status (SES) of their families. The sample consisted of 11, 13 and 15-year-old children (N = 4425 (2010), 10,361 (2014) and 13,377 (2018)); the data were collected as part of the HBSC Study in the Czech Republic. The findings suggest that adolescents from affluent families tend to participate more often in organized sports—both team activities and individual activities. Fifteen-year-old adolescents from families with a high SES are 3.01 times more likely to participate in individual organized sports than adolescents from low-SES families. The gap between participation in sport activities increases with the children’s age but does not change significantly during the observed period. The findings suggest that public health policy should be oriented towards children from less-affluent families.

Dark Side or Bright Side: The Impact of Alcohol Drinking on the Trust of Chinese Rural Residents

Existing studies have explored the causal effect of social capital on harmful drinking, while the effect of drinking habits on trust is scant. In China, drinking rituals and drinking culture are considered important ways of promoting social interaction and trust, especially in rural areas where traditional culture is stronger. Based on a field survey in rural China in 2019, this paper explores the relationship between drinking habits and trust. First, we found a negative relationship between drinking habits and trust, indicating that those people who drink alcohol are more likely to have a lower trust. Second, we found significant heterogeneity in the effect of alcohol consumption on social trust across various groups. Specifically, the negative effects of alcohol consumption on trust were stronger for the females than for males; drinking alcohol did not reduce the level of trust among the Chinese Communist Party (CCP) in rural China; compared with the Han nationality, we found that the effect of drinking on trust was not significant for the ethnic minority. Third, we observed that the negative effects of alcohol consumption on trust had thresholds across age and income. Among people under 51, the risk of trust from drinking was greater than for those over 51; the negative effect of drinking on residents’ trust was more obvious in low-income families, but not significant in the group with an annual household income of more than CNY 40,000. Our empirical study provides a deeper understanding of drinking culture in rural China from a dialectical perspective.

Local Ties, Trans-Local Ties, and Substance Use among Rural-to-Urban Migrants in China

China has witnessed unprecedented rural-to-urban migration since the early 1980s. While trying to assimilate into the city, rural-to-urban migrants still maintain close ties with their home communities. This study examines how local ties and trans-local ties of rural-to-urban migrants affect their alcohol and tobacco use. Data were obtained from the 2016 and 2018 China Labor-force Dynamics Survey, a nationally representative sample of adults aged over 15 in 29 provinces in China. Participants included 1426 rural-to-urban migrant workers and 6438 urban residents in China. We found that compared to urban natives, rural-to-urban migrants had higher tobacco use prevalence (logit = 0.19, 95% CI = [0.03, 0.35]; p < 0.05) and more frequent alcohol use (logit = 0.27, 95% CI = [0.11, 0.42]; p < 0.001) after adjusting for sociodemographic characteristics. Migrants with more local social ties engaged in more frequent drinking (having >10 local friends vs. having 0 local friends: logit = 0.58, [0.10, 1.06], p < 0.05), whereas trans-local ties were not a significant correlate. In contrast, migrants who returned to their hometown more times (an indicator of trans-local ties) were more likely to be current tobacco users (logit = 0.01, 95% CI = [0.00, 0.02], p < 0.01) after adjusting for sociodemographic variables. These findings extended the research on social networks and health behaviors by identifying how local and trans-local ties differentially affected the vulnerabilities of tobacco and alcohol use among rural-to-urban migrants in China. The findings suggested that policies and interventions on reducing migrants’ health risk behaviors should focus on the role of different types of social ties.

The association of social capital with depression and quality of life in school-aged children

Social capital is an important factor that affects mental health. The purpose of this study was to examine the relationship between social capital and depression and between social capital and quality of life (QoL) in children in elementary and junior high school and to examine how this relationship differs in relevant patterns at both the individual- and school-level. The study was conducted in all elementary and junior high schools in a single municipality; the subjects consisted of 3,722 elementary school and 3,987 junior high school students (aged from 9 to 15). A multilevel linear mixed effect model analysis revealed that all three subscales of social capital were associated with depression and QoL at the individual-level: The school social capital at the individual-level showed the strongest association with depression and QoL. We also found that some of social capital at the school-level was associated with depression and QoL. An interactive effect was observed between educational stage (elementary and junior high) and some of social capital subscales. Specifically, the inverse association between school social capital and depression was stronger among the junior high students, while the positive association between school and neighborhood social capital and QoL was stronger among the elementary students. These interactions suggest that social capital impacts depression and QoL differently in elementary and junior high students. These findings suggest that the degree of association of social capital domains differs in mental health among the educational stage.

The role of social capital in COVID-19 deaths

Background

The COVID-19 pandemic has shown a continuously increasing trend with a large variation in the number of COVID-19 deaths across countries. In response, many countries have implemented non pharmaceutical methods of intervention, such as social distancing and lockdowns. This study aims to investigate the relationship of four dimensions of social capital (community attachment, social trust, family bond, and security) and several control variables with COVID-19 deaths.

Methods

We retrieved data from open access databases and a survey. COVID-19 death-related data were collected from the website “Centre for Systems Science and Engineering (CSSE) at Johns Hopkins University”. Social capital-related data were collected from a large-scale survey that included web-based and face-to-face surveys covering 100,956 respondents across all regions/provinces/states of 37 countries in 2017. Data regarding population density, number of hospital beds, and population aged 65 or older were retrieved from the World Development Indicators (WDIs). Data on country lockdowns were obtained from the website “National responses to the 2019-20 coronavirus pandemic”. Linear regressions were applied to identify the relationship between social capital and COVID-19 deaths.

Results

We found that COVID-19 deaths were associated with social capital both positively and negatively. Community attachment and social trust were associated with more COVID-19 deaths, and family bond and security were associated with fewer deaths. COVID-19 deaths were positively associated with population density, ageing population, and interactions between four dimensions of social capital-related factors and the ageing population. Furthermore, the number of hospital beds and early lockdown policy were negatively associated with COVID-19 deaths.

Conclusions

The results indicate that the role of social capital in dynamically evolving threats, such as the current COVID-19 pandemic, is not always negative or positive. Therefore, people’s behaviour should be changed to support countries’ response to the COVID-19 threat.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12889-021-10475-8.

Time trends of socioeconomic inequalities in adolescent smoking in Okinawa, Japan, 2008-2016: a repeated cross-sectional study

Background

Smoking among Japanese adolescents has decreased noticeably. However, little is known whether the decreasing trend in adolescent smoking can be seen across all socioeconomic status (SES) groups. This study aimed to examine trends in socioeconomic inequalities in smoking among Japanese adolescents between 2008 and 2016.

Methods

We conducted a repeated cross-sectional study using data from three surveys of high school students in Okinawa, Japan, in 2008, 2012, and 2016. The study participants consisted of 7902 students in grades 10 through 12 (15–18 years). Smoking was assessed as current cigarette use. SES indicators included familial SES (parental education and family structure) and student’s own SES (school type). To evaluate absolute and relative inequalities, prevalence differences (PDs) and ratios (PRs) between low and high SES groups were estimated. The slope index of inequality (SII) and relative index of inequality (RII) were also calculated.

Results

Smoking prevalence among boys and girls significantly declined from 11.5% and 6.2% in 2008 to 4.7% and 1.9% in 2016, respectively. Similar decreasing trends in smoking were found among most of the SES groups. The PDs and SII for parental education in boys and family structure in girls decreased over time while those for school type persisted among boys and girls. The PRs and RII for school type in boys increased while those for other SES indicators among both sexes remained stable over time.

Conclusions

Smoking among Japanese adolescents has been declining and time trends of socioeconomic inequalities in smoking varied by absolute and relative measures. Further policies and/or interventions to reduce smoking inequalities should focus on the context of schools, especially in vocational high schools.

The Contribution of Organised Leisure-Time Activities in Shaping Positive Community Health Practices among 13-and 15-Year-Old Adolescents: Results from the Health Behaviours in School-Aged Children Study in Italy

Background and Objective: Participation in organised out-of-school leisure-time activities (OLTAs) has been shown to have a positive impact on community health practices and to lessen inequities in social and environmental opportunities among youths. According to the social capital theory, OLTAs foster bridging ties that allow individuals to forge new, wider-ranging social connections, increasing social integration and opportunities for identity-related exploration. This study aimed to describe participation in different types of OLTAs and its association with perceived life satisfaction, physical activity, tobacco use, alcohol consumption, and drunkenness in a representative sample of youths. Methods: A representative sample of 11-, 13- and 15-year-old students (n = 47,799) was recruited throughout all Italian regions within the Italian 2013/2014 Health Behaviours in School-aged Children (HBSC) study. Data were collected according to the HBSC study protocol. Participants were compared on outcomes according to OLTA participation type (i.e., non-sport, sport-only, and mixed vs. no-OLTA). In accordance with the study sampling procedures, hierarchical logistic regression models were used. Results: Participation in OLTAs was significantly associated with high life satisfaction in all ages (sport-only: odds ratio (OR) = 1.67, 1.48 and 1.55 for 11- 13- and 15-year-olds; mixed: OR = 1.95, 1.60 and 1.45, respectively). Youths participating in OLTAs were more likely to meet physical activity recommendations and report lower rates of tobacco use and drunkenness. Conclusions: Participation in OLTAs showed a favourable impact on health behaviours. Thus, community organisations and clubs, whether supported by public investments, could contribute to the enhancement of beneficial health practices, by engaging and serving the community as a whole and further reducing inequities in both social and environmental opportunities.

Perceived social capital and binge drinking in older adults: The Health and Retirement Study, US data from 2006-2014

OBJECTIVE

Social capital has been described as having both positive influences as well as negative influences ("the dark side") on health behaviors. We sought to test the association of perceived social capital on the risk of binge drinking among older adults, using a longitudinal design.

METHODS

We used HRS (Health and Retirement Study) data, a nationally representative sample of US adults aged ≥50 years evaluated every two years (from 2006 to 2014). We investigated the relationship between perceived social capital (neighborhood social cohesion and neighborhood physical disorder, positive social support and negative social support) and binge drinking over time, with a multilevel structural equation modelling (MSEM) approach, modelling number of binge-drinking days as hurdle negative binomial. We used MSEM estimating the associations at person level (overall) and within waves.

RESULTS

The sample included 19,140 individuals. At baseline mean age was 66.8 (SD 10.3). Over time, the number of binge drinking days decreased. Negative social support increased the average number of binge drinking days among those who drink, where one unit increase was associated with an increase of 37 % in the expected number of days binge drinking in the same wave. The association of positive social support on the number of binge drinking days was stronger for females (-0.59 (SE = 0.12)), while neighborhood social cohesion was significantly associated with binge drinking in females (-0.05 (SE = 0.01)), but not in males.

CONCLUSIONS

Negative social support favored binge drinking. Positive social support and neighborhood social cohesion are protective factors for binge drinking, especially for women.

Does participation in voluntary organizations protect against risky alcohol and tobacco use? Findings from the UK panel data

Drawing on the literature that posits heterogeneous influences of social networks on health behaviors, we tested whether different forms of participation in voluntary organizations predicted more or less alcohol and tobacco consumption over time. (Access preregistration at https://osf.io/guzem/) We used panel data from younger (aged 14–29 at baseline), middle-aged (aged 40–50), and older (aged 65–75) UK adults, Ns = 1280–9073, followed from 1991 to 2014. Annual measures of smoking included status and intensity. Frequency of pub attendance was assessed biennially between 1996 and 2008. In 2010 and 2013, more precise measures of alcohol consumption were available. We conducted two-level regression analyses for the outcomes measured more than twice and residual change analyses for other outcomes. Over time (within persons), there were no significant effects on smoking. Activity in voluntary organizations predicted slightly less frequent pub attendance in younger adults. In residual change analyses, activity in voluntary organizations decreased last-week ethanol consumption and risk of heavy episodic drinking in younger women. These effects pertained mainly to service-orientated organizations. In middle-aged adults, membership and attendance at meetings of voluntary organizations predicted slightly more frequent pub attendance. Residual change analyses showed volunteering to reduce the risk of heavy episodic drinking in middle-aged men. In older adults, few significant effects emerged. Between persons, all indicators of participation were associated with less smoking, whereas membership was associated with more and activity with less frequent pub attendance. Thus, most associations between participation in voluntary organizations and substance use reflected interindividual differences.

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Light/moderate drinkers and nonsmokers were civically engaged much more often.

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Volunteering had isolated protective effects against heavy episodic drinking.

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Participation in service-orientated organizations had similar effects.

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There were no protective effects against smoking.

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Few age and sex differences emerged.

Effects of voluntary memberships and volunteering on alcohol and tobacco use across the life course: Findings from the German Socio-Economic Panel

BACKGROUND

It is unclear whether specific components of individual social capital promote or protect against substance use and whether such effects vary across the life course. In this study, we investigated the effects of voluntary memberships and volunteering on alcohol and tobacco consumption in age comparison.

METHODS

Preregistration is accessible at https://osf.io/qhkrn/. We used data from the German Socio-Economic Panel (1984-2015), where alcohol consumption was assessed in 2006, 2008, and 2010 and smoking was assessed at least biennially since 1998. We divided participants into three age groups (14-29, 40-50, and 65-75 years of age at baseline). To disentangle intraindividual change over time and interindividual differences (potential selection effects), we employed multilevel analysis.

RESULTS

At the within level, voluntary memberships at one occasion predicted higher alcohol consumption a year later in middle-aged and older adults, but memberships had no significant longitudinal effects on smoking. Several positive effects of volunteering on alcohol and tobacco use one year later were found in males. No significant differences in the longitudinal effects between age groups or between nonpolitical and political volunteering emerged. At the between level, voluntary memberships and volunteering were usually associated with more alcohol consumption at low and moderate levels but with less smoking.

DISCUSSION

Over time, voluntary memberships and volunteering in Germany appear to promote, rather than to protect against, alcohol and tobacco use. On average, more engaged individuals drink more (at moderate levels) and smoke less, which may be due to selection effects.

Unhealthy eating habits and participation in organized leisure-time activities in Czech adolescents

A healthy lifestyle habits in adolescents consist of healthy eating patterns and active ways of spending leisure time. This study aimed to examine the relationship between organized leisure-time activities (OLTA) and eating habits in adolescence. Data from the 2013/2014 Health Behaviour in School-aged Children (HBSC) study on 10,494 Czech adolescents aged 11-15 years was used. The associations of participation in OLTA with ten specific eating habits were analyzed using logistic regression. Involvement in any type of OLTA was associated with higher consumption of daily breakfast, fruit, and vegetables and a lower intake of soft drinks. Participants in non-sport and sport and other activity reported lower rates of unhealthy eating habits (e.g., lower rates of eating crisps and eating in front of the TV or computer). Participation only in sport was related to more frequent eating at fast food restaurants but less frequent snacking in front of the computer and intake of crisps.

CONCLUSION

Participation in OLTA was associated with healthier eating habits (e.g., consumption of fruit and vegetables) and a lower occurrence of unhealthy eating habits (e.g., consumption of soft drinks). Alternatively, our findings indicate that non-participation in OLTA can serve as an indicator of an unhealthy lifestyle in adolescence. What is Known • Unhealthy eating habits in youth tend to persist into adulthood and are related to adverse health consequences later in life. • The type of the leisure-time activity (participation in sport, non-sport, sport, and other activities) affects the strength of developmental outcomes in adolescents. What is New • Youth participating in non-sport activity and sport and other activity concurrently reported lower rates of unhealthy eating habits (e.g., eating junk food, eating in front of the TV/computer). • Non-participation in OLTA could be viewed as a potential risk factor for an unhealthy lifestyle in adolescents.

Cardiovascular disease mortality in relation to physical activity during adolescence and adulthood in Japan: Does school-based sport club participation matter?

We examined potential associations of sport club participation during adolescence and sports-related physical activity during adulthood with mortality from cardiovascular diseases (CVD) in a Japanese population. Between 1988 and 1990, 29,526 men and 41,043 women aged 40-79 years responded to a questionnaire including questions about the frequency of sports participation at baseline and sport club participation during junior/senior high school. Subjects were followed-up until the end of 2009, and 4230 cardiovascular deaths (870 CHD, 1859 stroke) were identified. Cox proportional-hazard regression models were used to estimate hazard ratios (HR). During the first-two thirds of the follow-up - where the proportional hazards assumption was met - the multivariate-adjusted HR (95% confidence interval) for total CVD mortality was 0.77 (0.61-0.98) among men and 0.82 (0.61-1.10) among women who were physically active at baseline (≥5 h/week versus 1-2 h/week). The corresponding HRs for coronary heart disease (CHD) mortality were 0.65 (0.39-1.07) and 0.40 (0.17-0.91), respectively. The combined associations of sports participation during adulthood and adolescence were also examined. Among men who participated in sports for ≥5 h/week at baseline, the multivariate-adjusted HR for those who also engaged in sport club activities during adolescence was 0.89 (0.61-1.30) for total CVD mortality and 0.24 (0.08-0.71) for CHD mortality when compared to non-participants. Among women, no statistically significant differences were found between sport club participants and non-participants. In conclusion, participating in sport clubs during adolescence might lead to a more pronounced risk-reduction for CHD mortality among men who also participate in sport activities during adulthood.

Can organized leisure-time activities buffer the negative outcomes of unstructured activities for adolescents' health?

Objectives

We aimed to assess the associations of involvement in selected unstructured activities (UA) with health-risk behaviours and academic achievement and the degree to which the participation in organized leisure-time activities (OLTA) changes these associations.

Methods

Using a sample of 6935 Czech adolescents aged 13 and 15 years, we investigated adolescents’ weekly involvement in hanging out, visiting shopping malls for fun and meeting friends after 8 p.m., OLTA and engagement in three health-risk behaviours and academic achievement.

Results

Weekly involvement in the selected UA was associated with higher odds for regular smoking, being drunk, having early sexual intercourse and low academic achievement. Concurrent participation in OLTA did not buffer these negative outcomes, except for sexual experience. However, those highly engaged only in UA were more likely to participate in the health-risk behaviours and report worse academic achievement than those participating in any OLTA concurrently.

Conclusions

The selected UA are strongly associated with an increased occurrence of adolescents’ health-risk behaviours and low academic achievement. Concurrent participation in OLTA does not buffer these negative outcomes significantly, but adolescents engaged only in UA consistently report the least favourable outcomes.

The dark side of social capital: A systematic review of the negative health effects of social capital

There is a growing literature demonstrating the health benefits of social capital (defined as the resources accessed through social connections). However, social capital is also acknowledged to be a "double-edged" phenomenon, whose effects on health are not always positive. We sought to systematically review studies that have found a negative (i.e. harmful) association between social capital and health outcomes. Our objective was to classify the different types of negative effects, following a framework originally proposed by Portes (1998). We conducted a literature search in Pubmed, Embase and PsychInfo. We identified 3530 manuscripts. After detailed review, we included 44 articles in our systematic review. There are at least two negative consequences of social capital besides the classification proposed by Portes: behavioral contagion and cross-level interactions between social cohesion and individual characteristics. When leveraging the concept of social capital for health promotion interventions, researchers need to take account of these potential "downsides" for health outcomes.

Do family environment factors play a role in adolescents' involvement in organized activities?

The study assessed the association of family environment factors with adolescents' participation in organized leisure-time activities (OLTA). We used data on 10,472 Czech adolescents aged 11-15 years (49.2% boys) from the 2013/2014 Health Behaviour in School-aged Children study. The associations of family support, the presence of parental screen-time rules and joint family activities with participation in at least one OLTA were assessed using logistic regression. High family support and the presence of parental screen-time rules were associated with higher odds of OLTA participation. Moreover, adolescents playing sports, indoor games and going for walks with their families at least weekly were more likely to participate in OLTA. Conversely, those spending time in joint family TV/video watching on most days were less likely to do so. A supportive family environment and direct parental involvement in their adolescent children's leisure are associated with OLTA participation in early to middle adolescence.

Prevalence of Cigarette Smoking and Associated Factors among Male Citizens in Tehran, Iran

BACKGROUND

Cigarette smoking is as the leading cause of cancer mortality and other chronic diseases in males worldwide. The prevalence of cigarette smoking is different across and within countries by age, education level, occupation, and so on. This study aimed to determine the prevalence of cigarette smoking and its relationship with individuals' demographic factors and BMI in adolescent men living in Tehran, Iran.

MATERIALS AND METHODS

This study involved secondary analysis of the 'Urban Health Equity Assessment and Response Tool-2' survey conducted in Tehran, Iran, among men aged 20+, 2011-2012. Using a multistage sampling method, 45,990 men were included in the study. The cigarette smoking status, BMI and demographic factors measured through a self-administered questionnaire. Chi-square, t-test, and logistic regression model were used to examine the relationships between the independents variables and cigarette smoking behavior, using SPSS software version 21.

RESULTS

In the total of 45,990 men, the overall prevalence of cigarette smoking was 14.6% (CI 95%: 14.29- 14.94). Age (OR=0.96; CI 95%:0.94-0.98), house ownership (OR=0.68; CI 95%: 0.64-0.72), job status (OR=0.60; CI 95%: 0.46-0.86), marital status (OR=0.42; CI 95%: 0.39-0.47) and educational levels (OR=0.50; CI95%: 0.45-0.54) were associated with the prevalence of cigarette smoking. However, associations with BMI, family size, residency years, and district were not statistically significant.

CONCLUSIONS

Given the relatively high prevalence of cigarette smoking in the study population, policy interventions are required to address this major public health issue, with a focus on the population demographic influences.

Participation in organized leisure-time activities and risk behaviors in Czech adolescents

Objectives

The study aimed to assess the associations between participation in organized leisure-time activities (OLTA) and risk behaviors, and whether the associations differed by gender, age, and pattern of OLTA involvement.

Methods

Data from the 2013/2014 Health Behaviour in School-Aged Children study on 10,279 11-, 13-, and 15-year-old Czech adolescents (49.2% boys) were used. We assessed the associations between OLTA participation and risk behaviors, and modification by age and gender.

Results

OLTA participants were less likely to smoke, get drunk repeatedly, or skip school and, in contrast, more likely to get injured and fight repeatedly. The associations with lower occurrence of risk behaviors were the strongest for artists, while none was significant for adolescents participating only in team sports. Girls participating in OLTA had lower odds to smoke, get drunk, or skip school than boys, and these boys had higher odds to get injured or fight.

Conclusions

OLTA participation is associated with lower occurrence of repeated substance use and truancy and inversely with higher odds for physical fights and injuries. Girls, in general, are at lower risk when participating in OLTA than boys.

Military service and smoking in a cohort of northern Vietnamese older adults

OBJECTIVES

Wide-ranging scholarship demonstrates war's impacts on US veterans' health. We ask whether, among Vietnamese men of a certain age, wartime experiences contributed to initiating smoking, and thus shaped one behavioral pathway linking war exposure and older adult health.

METHODS

We analyze the Vietnam Health and Aging Pilot Study (VHAPS), a survey of adults ages 55 and older (N = 405) conducted in one commune of northern Vietnam. We implement Cox discrete-time proportional hazards models to discern the effects of military service upon the initiation of smoking.

RESULTS

Military service results in a heightened risk of initiating smoking within this cohort (HR 2.13, [CI 1.36, 3.35]). Smoking initiation is also significantly gendered and age graded. Socioeconomic position and social capital variables in the models are statistically insignificant.

CONCLUSIONS

This study finds that, among older northern Vietnamese men whose early adulthood coincided with mass mobilization in the Vietnam War, involvement in formal military service significantly increased the risk of initiating smoking. Military-induced smoking emerges where tobacco products were not provided by the military institution, but where social availability of tobacco was widespread.