Evaluating Methods for Mapping Historical Redlining to Census Tracts for Health Equity Research.

Neighborhood characteristics including housing status can profoundly influence health. Recently, increasing attention has been paid to present-day impacts of "redlining," or historic area classifications that indicated less desirable (redlined) areas subject to decreased investment. Scholarship of redlining and health is emerging; limited guidance exists regarding optimal approaches to measuring historic redlining in studies of present-day health outcomes. We evaluated how different redlining approaches (map alignment methods) influence associations between redlining and health outcomes. We first identified 11 existing redlining map alignment methods and their 37 logical extensions, then merged these 48 map alignment methods with census tract life expectancy data to construct 9696 linear models of each method and life expectancy for all 202 redlined cities. We evaluated each model's statistical significance and R2 values and compared changes between historical and contemporary geographies and populations using Root Mean Squared Error (RMSE). RMSE peaked with a normal distribution at 0.175, indicating persistent difference between historical and contemporary geographies and populations. Continuous methods with low thresholds provided higher neighborhood coverage. Weighting methods had more significant associations, while high threshold methods had higher R2 values. In light of these findings, we recommend continuous methods that consider contemporary population distributions and mapping overlap for studies of redlining and health. We developed an R application {holcmapr} to enable map alignment method comparison and easier method selection.

Young Adult Sexual Behavior in South Africa: How Important is Parental Social Support?

Risky sexual behavior exposes young adults to poor reproductive health outcomes. Parental social support is associated with reduced incidence of risky sexual behavior, but this association has not been adequately investigated in South Africa. We used data from Waves 1 and 3 of the Cape Area Panel Study (a longitudinal study of adolescents and young adults aged 14-22 years and living in the Cape Town metropolitan area) to investigate the associations between parental social support and young adult risky sexual behavior in South Africa. We conducted multivariable logistic regression analyses to assess whether lack of specific categories of parental social supports at wave 1 (baseline) are associated with higher risky sexual behaviors by young adults at wave 3 (follow-up). We found that young adults who never ate meals with their mothers and those who never discussed personal matters with their fathers had increased risks of multiple sexual partnerships. Also, young adults who never got pocket money or money for gifts from their mothers had increased risk to engage in unprotected sex during their first sexual encounter. Our findings suggest that eating family meals, discussing personal matters with youth, and providing them with pocket money, may protect young adults in South Africa from risky sexual behavior.

Integrating children's physical activity enjoyment into public health dialogue (United States).

Physical activity engagement during childhood is associated with positive health outcomes in adulthood. Exercise and sport science research links physical activity enjoyment with physical activity adoption and maintenance, among other positive health behaviors. However, public health researchers rarely measure enjoyment or discuss its role in interventions or theory. In this paper, we present the rationale for bringing enjoyment to the forefront of public health dialogue and action to increase physical activity in children and across the life course. We outline five potential explanations for the lack of physical activity enjoyment research in public health, and offer solutions and action steps for each. Enjoyment research has the potential to improve people's health by working on multiple levels, from individuals to schools to public sectors, and could have positive implications for various health behaviors.

Cigarette graphic health warning labels and information avoidance among individuals from low socioeconomic position in the U.S.

PURPOSE: Although graphic health warning labels (GHWs) on cigarette packs have influenced cessation behaviors in other countries, no U.S. studies have explored the impact of avoidance of GHW content among individuals from low socioeconomic position (SEP). The purpose of this study was to determine the predictors of intention to avoid GHWs, and how avoidance impacts cessation intention, in a low SEP sample in the U.S. METHODS: Data come from low SEP smokers (n = 541) involved in a field experiment. The participants responded to questions pre- and post viewing of GHWs assessing SEP, intention to avoid them, emotional reactions, and intention to seek health information or quit smoking. Backwards stepwise logistic regression determined the predictors for intention to avoid GHWs. Simple and adjusted logistic regression analyzed the association between avoidance and its main predictors and outcomes of intentions to seek information or quit smoking. RESULTS: Predictors for avoidance included being somewhat addicted to cigarettes (OR 2.3, p = 0.002), younger than 25 (OR 2.6, p = 0.008), and having medium (OR 3.4, p < 0.001) or high (OR 4.7, p < 0.001) levels of negative emotional reaction to the labels. Intention to avoid GHWs was positively associated with the intent to look for health information about smoking (OR 2.2, p = 0.002). Higher levels of negative emotional reaction were positively associated with cessation behaviors, with high negative emotional reaction associated with nine times the odds of quitting (p < 0.001). CONCLUSIONS: Results indicate avoidance of GHWs does not detract from the labels' benefit and that GHWs are an effective means of communicating smoking risk information among low SEP groups.

Decrements in health-related quality of life associated with gender nonconformity among U.S. adolescents and young adults.

PURPOSE: Gender nonconformity, that is, transgressing conventionally "masculine" vs. "feminine" characteristics, is often stigmatized. Stigmatization and discrimination are social stressors that raise risk of adverse mental and physical health outcomes and may drive health inequities. However, little is known about the relationship between such social stressors and health-related quality of life (HRQOL). This paper aimed to examine associations between perceived gender nonconformity and HRQOL in a cohort of U.S. adolescents and young adults. METHODS: Using data from 8408 participants (18-31 years) in the U.S. Growing Up Today Study (93% white, 88% middle-to-high income), we estimated risk ratios (RRs) for the association of gender nonconformity (three levels: highly gender conforming, moderately conforming, and gender nonconforming) and HRQOL using the EuroQol questionnaire (EQ-5D-5L). Models were adjusted for demographic characteristics, including sexual orientation identity. RESULTS: Gender nonconformity was independently associated with increased risk of having problems with mobility [RR (95% confidence interval): 1.76 (1.16, 2.68)], usual activities [2.29 (1.67, 3.13)], pain or discomfort [1.59, (1.38, 1.83)], and anxiety or depression [1.72 (1.39, 2.13)], after adjusting for sexual orientation and demographic characteristics. Decrements in health utility by gender nonconformity were observed: compared to persons who were highly gender conforming, mean health utility was lower for the moderately gender conforming [beta (SE): -0.011 (.002)] and lowest for the most gender nonconforming [-0.034 (.005)]. CONCLUSIONS: In our study, HRQOL exhibited inequities by gender nonconformity. Future studies, including in more diverse populations, should measure the effect of gender-related harassment, discrimination, and violence victimization on health and HRQOL.

Marginal structural modelling of associations of occupational injuries with voluntary and involuntary job loss among nursing home workers.

OBJECTIVES: Qualitative studies have highlighted the possibility of job loss following occupational injuries for some workers, but prospective investigations are scant. We used a sample of nursing home workers from the Work, Family and Health Network to prospectively investigate association between occupational injuries and job loss. METHODS: We merged data on 1331 workers assessed 4 times over an 18-month period with administrative data that include job loss from employers and publicly available data on their workplaces. Workers self-reported occupational injuries in surveys. Multivariable logistic regression models estimated risk ratios for the impact of occupational injuries on overall job loss, whereas multinomial models were used to estimate OR of voluntary and involuntary job loss. Use of marginal structural models allowed for adjustments of multilevel lists of confounders that may be time varying and/or on the causal pathway. RESULTS: By 12 months, 30.3% of workers experienced occupational injury, whereas 24.2% experienced job loss by 18 months. Comparing workers who reported occupational injuries to those reporting no injuries, risk ratio of overall job loss within the subsequent 6 months was 1.31 (95% CI 0.93 to 1.86). Comparing the same groups, injured workers had higher odds of experiencing involuntary job loss (OR 2.19; 95% CI 1.27 to 3.77). Also, compared with uninjured workers, those injured more than once had higher odds of voluntary job loss (OR 1.95; 95% CI 1.03 to 3.67), while those injured once had higher odds of involuntary job loss (OR 2.19; 95% CI 1.18 to 4.05). CONCLUSIONS: Despite regulatory protections, occupational injuries were associated with increased risk of voluntary and involuntary job loss for nursing home workers.

Entertainment or Health? Exploring the Internet Usage Patterns of the Urban Poor: A Secondary Analysis of a Randomized Controlled Trial.

BACKGROUND: Important gaps remain in our knowledge of how individuals from low socioeconomic position (SEP) use the Internet for resources and in understanding the full range of activities they perform online. Although self-report data indicate that low SEP individuals use the Internet less than high SEP people for health information and for other beneficial capital-enhancing activities, these results may not provide an accurate overall view of online use. OBJECTIVE: The aim of this study was to determine the ways in which low SEP individuals use the Internet, including for entertainment, social networking, and capital-enhancing functions, and how they are associated with health information seeking. METHODS: Detailed Web tracking data were collected from 118 low SEP individuals who participated in the intervention group of a randomized controlled trial that provided Internet access. Websites were grouped by topic, including categories of capital-enhancing websites that provided access to resources and information. Different types of online activities were summed into an Internet use index. Single and multiple negative binomial regression models were fitted with the Internet use index as the predictor and health information seeking as the outcome. Next, models were fitted with low, medium, and high Web usage in capital-enhancing, entertainment, and social network categories to determine their associations with health information seeking. RESULTS: Participants used the Web for diverse purposes, with 63.6% (75/118) accessing the Internet for all defined types of Internet use. Each additional category of Internet use was associated with 2.12 times the rate of health information seeking (95% CI 1.84-2.44, P<.001). Higher use of each type of capital-enhancing information was associated with higher rates of health information seeking, with high uses of government (incident rate ratio [IRR] 8.90, 95% CI 4.82-16.42, P<.001) and news (IRR 11.36, 95% CI 6.21-20.79, P<.001) websites associated with the highest rates of health information seeking compared to their lowest use categories. High entertainment website use (IRR 3.91, 95% CI 2.07-7.37, P<.001) and high social network use (IRR 2.06, 95% CI 1.08-3.92, P=.03) were also associated with higher health information seeking. CONCLUSIONS: These data clearly show that familiarity and skills in using the Internet enhance the capacity to use it for diverse purposes, including health and to increase capital, and that Internet usage for specific activities is not a zero sum game. Using it for one type of topic, such as entertainment, does not detract from using it for other purposes. Findings may inform ways to engage low SEP groups with Internet resources.

Incarceration and Current Tobacco Smoking Among Black and Caribbean Black Americans in the National Survey of American Life.

OBJECTIVES: We examined the relationship between having a history of incarceration and being a current smoker using a national sample of noninstitutionalized Black adults living in the United States. METHODS: With data from the National Survey of American Life collected between February 2001 and March 2003, we calculated individual propensity scores for having a history of incarceration. To examine the relationship between prior incarceration and current smoking status, we ran gender-specific propensity-matched fitted logistic regression models. RESULTS: A history of incarceration was consistently and independently associated with a higher risk of current tobacco smoking in men and women. Formerly incarcerated Black men had 1.77 times the risk of being a current tobacco smoker than did their counterparts without a history of incarceration (95% confidence interval [CI] = 1.20, 2.61) in the propensity score-matched sample. The results were similar among Black women (prevalence ratio = 1.61; 95% CI = 1.00, 2.57). CONCLUSIONS: Mass incarceration likely contributes to the prevalence of smoking among US Blacks. Future research should explore whether the exclusion of institutionalized populations in national statistics obscures Black-White disparities in tobacco smoking.

Incarceration and adult weight gain in the National Survey of American Life (NSAL).

BACKGROUND: The United States has the unenviable distinction of having both the highest obesity rate among Organisation for Economic Co-operation and Development (OECD) member countries and the highest incarceration rate in the world. Further, both are socially patterned by race/ethnicity and socioeconomic position. Incarceration involves various health behaviors that could influence adult weight trajectory. METHODS: We evaluated the associations between history and duration of adult incarceration and weight gain using the National Survey of American Life (N=6082 adults residing in the 48 contiguous states between February 2001 and March 2003). We propensity score-matched individuals to control for the probability of having a history of incarceration. To examine the relation between prior incarceration and adult weight gain, we fit gender-stratified generalized estimating equations controlling for propensity of incarceration history, age, education, income, race/ethnicity, and marital status. RESULTS: For males (N=563), incarceration was associated with about a 1.77 kg/m(2) lower gain in body mass index (BMI) during adulthood, after adjusting for age, education, income, race/ethnicity, and marital status in addition to the propensity of having a history of incarceration (95% CI: -2.63, -0.92). For females (N=286), no significant overall relationship was found between a history of incarceration and adult weight gain. In subgroup analyses among those with an incarceration history, we found no overall association between duration of incarceration and adult weight gain in men or women. In sensitivity analyses, neither tobacco smoking nor parity changed the results. CONCLUSIONS: The results of this study indicate that incarceration is associated with a lower transition of weight gain in males, but not in females..

Association between clean indoor air laws and voluntary smokefree rules in homes and cars.

OBJECTIVES: This study examines the influence that smokefree workplaces, restaurants and bars have on the adoption of smokefree rules in homes and cars, and whether there is an association with adopting smokefree rules in homes and cars. METHODS: Bivariate probit models were used to jointly estimate the likelihood of living in a smokefree home and having a smokefree car as a function of law coverage and other variables. Household data were obtained from the nationally representative Social Climate Survey of Tobacco Control 2001, 2002 and 2004-2009; clean indoor air law data were from the American Nonsmokers' Rights Foundation Tobacco Control Laws Database. RESULTS: 'Full coverage' and 'partial coverage' smokefree legislation is associated with an increased likelihood of having voluntary home and car smokefree rules compared with 'no coverage'. The association between 'full coverage' and smokefree rule in homes and cars is 5% and 4%, respectively, and the association between 'partial coverage' and smokefree rules in homes and cars is 3% and 4%, respectively. There is a positive association between the adoption of smokefree rules in homes and cars. CONCLUSIONS: Clean indoor air laws provide the additional benefit of encouraging voluntary adoption of smokefree rules in homes and cars.

Effect of stressful life events on changes in smoking among the French: longitudinal findings from GAZEL.

BACKGROUND: Changes in life events may play a contributing role in changes in smoking behaviors. The objective was to examine the impact of stressful life events (SLEs) on smoking among French adults. METHODS: We examined smoking prevalence in 20 625 employees of the French GAZEL cohort for up to 5 years before and after a SLE during three time periods (years -1 vs. -5; years +1 vs. -1; years +5 vs. +1). Repeated measures analysis of time series data indexed to events were used, employing generalized estimating equations. RESULTS: For women, comparing 1 year after vs. 1 year before SLEs, decreased odds of smoking were found for employment promotion (OR: 0.80; 95% CI = 0.67-0.95), marriage (OR: 0.57; 95% CI = 0.48-0.68) and divorce (OR: 0.78; 95% CI = 0.68-0.90). Comparing 5 years after to 1 year after SLEs, women had decreased odds of smoking for important purchase (OR: 0.87; 95% CI = 0.79-0.96), children leaving home (OR: 0.83; 95% CI = 0.74-0.93), retirement (OR: 0.73; 95% CI = 0.64-0.83) and death of loved one (OR: 0.86; 95% CI = 0.79-0.93). For men, decreased odds of smoking were observed in all three time periods for all SLEs except when comparing 1 year before to 5 years before marriage (OR: 1.66; 95% CI = 1.09-2.52) and divorce (OR: 1.49; 95% CI = 1.25-1.77). CONCLUSION: Time surrounding SLEs during which individuals are susceptible to changing smoking behaviors may be an important consideration.

Length of time spent working on a commercial construction site and the associations with worker characteristics.

BACKGROUND: Construction workers move frequently from jobsite to jobsite, yet little is documented about length of stay on-site and associations with worker characteristics. METHOD: Using cross-sectional data, we investigated associations between worker characteristics (including trade and musculoskeletal pain) and length of stay on-site (dichotomized as < 1 month, n = 554, and ≥ 1 month, n = 435). RESULTS: Approximately, 56% of workers remained on the worksite for at least 1 month. Length of stay was significantly associated with workers' race/ethnicity, union status, title, trade, and musculoskeletal pain (P-values < 0.05). Trades associated with longer length of stay included pipefitters and plumbers. Trades associated with shorter length of stay included operators and piledrivers. Workers with single-location pain had 2.21 times (95%CI: 1.52, 3.19) the odds of being short-term versus long-term, adjusting for trade, title, and race/ethnicity. CONCLUSION: The length of stay and associated characteristics provide important insight into how workers come and go on construction sites and the methodological challenges associated with traditional intervention evaluations.

Validity of a practitioner-administered observational tool to measure physical activity, nutrition, and screen time in school-age programs.

BACKGROUND: Nutrition and physical activity interventions have been effective in creating environmental changes in afterschool programs. However, accurate assessment can be time-consuming and expensive as initiatives are scaled up for optimal population impact. This study aims to determine the criterion validity of a simple, low-cost, practitioner-administered observational measure of afterschool physical activity, nutrition, and screen time practices and child behaviors. METHODS: Directors from 35 programs in three cities completed the Out-of-School Nutrition and Physical Activity Observational Practice Assessment Tool (OSNAP-OPAT) on five days. Trained observers recorded snacks served and obtained accelerometer data each day during the same week. Observations of physical activity participation and snack consumption were conducted on two days. Correlations were calculated to validate weekly average estimates from OSNAP-OPAT compared to criterion measures. Weekly criterion averages are based on 175 meals served, snack consumption of 528 children, and physical activity levels of 356 children. RESULTS: OSNAP-OPAT validly assessed serving water (r = 0.73), fruits and vegetables (r = 0.84), juice >4oz (r = 0.56), and grains (r = 0.60) at snack; sugary drinks (r = 0.70) and foods (r = 0.68) from outside the program; and children's water consumption (r = 0.56) (all p <0.05). Reports of physical activity time offered were correlated with accelerometer estimates (minutes of moderate and vigorous physical activity r = 0.59, p = 0.02; vigorous physical activity r = 0.63, p = 0.01). The reported proportion of children participating in moderate and vigorous physical activity was correlated with observations (r = 0.48, p = 0.03), as were reports of computer (r = 0.85) and TV/movie (r = 0.68) time compared to direct observations (both p < 0.01). CONCLUSIONS: OSNAP-OPAT can assist researchers and practitioners in validly assessing nutrition and physical activity environments and behaviors in afterschool settings. TRIAL REGISTRATION: Phase 1 of this measure validation was conducted during a study registered at clinicaltrials.gov NCT01396473.

Racial and non-racial discrimination and smoking status among South African adults 10†years after apartheid.

BACKGROUND: Despite a long history of discrimination and persisting racial disparities in smoking prevalence, little research exists on the relationship between discrimination and smoking in South Africa. METHODS: This analysis examined chronic (day-to-day) and acute (lifetime) experiences of racial and non-racial (eg, age, gender or physical appearance) discrimination and smoking status among respondents to the South Africa Stress and Health study. Logistic regression models were constructed using SAS-Callable SUDAAN. RESULTS: Both chronic racial discrimination (RR=1.45, 95% CI 1.14 to 1.85) and chronic non-racial discrimination (RR=1.69, 95% CI 1.37 to 2.08) predicted a higher risk of smoking, but neither type of acute discrimination did. Total (sum of racial and non-racial) chronic discrimination (RR=1.46, 95% CI 1.20 to 1.78) and total acute discrimination (RR=1.28, 95% CI 1.01 to 1.60) predicted a higher risk of current smoking. CONCLUSIONS: Racial and non-racial discrimination may be related to South African adults' smoking behaviour, but this relationship likely varies by the timing and frequency of these experiences. Future research should use longitudinal data to identify the temporal ordering of the relationships studied, include areas outside of South Africa to increase generalisability and consider the implications of these findings for smoking cessation approaches in South Africa.

Contractor-, steward-, and coworker-safety practice: associations with musculoskeletal pain and injury-related absence among construction apprentices.

OBJECTIVES: This paper sought to assess organizational safety practices at three different levels of hierarchical workplace structure and to examine their association with injury outcomes among construction apprentices. METHODS: Using a cross-sectional sample of 1,775 construction apprentices, three measures of organizational safety practice were assessed: contractor-, steward-, and coworker-safety practice. Each safety practice measure was assessed using three similar questions (i.e., on-the-job safety commitment, following required or recommended safe work practices, and correcting unsafe work practices); the summed average of the responses ranged from 1 to 4, with a higher score indicating poorer safety practice. Outcome variables included the prevalence of four types of musculoskeletal pain (i.e., neck, shoulder, hand, and back pain) and injury-related absence. RESULTS: In adjusted analyses, contractor-safety practice was associated with both hand pain (OR: 1.27, 95 % CI: 1.04, 1.54) and back pain (OR: 1.40, 95 % CI: 1.17, 1.68); coworker-safety practice was related to back pain (OR: 1.42, 95 % CI: 1.18, 1.71) and injury-related absence (OR: 1.36, 95 % CI: 1.11, 1.67). In an analysis that included all three safety practice measures simultaneously, the association between coworker-safety practice and injury-related absence remained significant (OR: 1.68, 95 % CI: 1.20, 2.37), whereas all other associations became non-significant. CONCLUSIONS: This study suggests that organizational safety practice, particularly coworker-safety practice, is associated with injury outcomes among construction apprentices.

Association between perceived inadequate staffing and musculoskeletal pain among hospital patient care workers.

OBJECTIVE: To examine association between perceived inadequate staffing and musculoskeletal pain and to evaluate the role of work-related psychosocial and physical work factors in the association among hospital patient care workers. METHODS: A cross-sectional study was conducted among 1,572 patient care workers in two academic hospitals. Perceived inadequate staffing was measured using the "staffing adequacy subscale" of Nursing Work Index, which is a continuous scale that averages estimates of staffing adequacy by workers in the same units. Musculoskeletal pain (i.e., neck/shoulder, arm, low back, lower extremity, any musculoskeletal pain, and the number of area in pain) in the past 3 months was assessed using a self-reported Nordic questionnaire. Multilevel logistic regression was applied to examine associations between perceived inadequate staffing and musculoskeletal pain, considering clustering among the workers in the same units. RESULTS: We found significant associations of perceived inadequate staffing with back pain (OR 1.50, 95 % CI 1.06, 2.14) and the number of body area in pain (OR 1.42, 95 % CI 1.01, 2.00) after adjusting for confounders including work characteristics (job title, having a second job or not, day shift or not, and worked hours per week). When we additionally adjusted for physical work factors (i.e., use of a lifting device, and the amount of the time for each of five physical activities on the job), only the association between perceived inadequate staffing and back pain remained significant (OR 1.50, 95 % CI 1.03, 2.19), whereas none of the associations was significant for all of musculoskeletal pains including back pain (OR 0.96, 95 % CI 0.66, 1.41) when we additionally adjusted for work-related psychosocial factors (i.e., job demands, job control, supervisor support, and co-worker support) instead of physical work factors. CONCLUSIONS: Perceived inadequate staffing may be associated with higher prevalence of back pain, and work-related psychosocial factor may play an important role in the potential pathway linking staffing level to back pain among hospital workers.

Discrimination, harassment, abuse, and bullying in the workplace: contribution of workplace injustice to occupational health disparities.

BACKGROUND: This paper synthesizes research on the contribution of workplace injustices to occupational health disparities. METHODS: We conducted a broad review of research and other reports on the impact of workplace discrimination, harassment, and bullying on workers' health and on family and job outcomes. RESULTS: Members of demographic minority groups are more likely to be victims of workplace injustice and suffer more adverse outcomes when exposed to workplace injustice compared to demographic majority groups. A growing body of research links workplace injustice to poor psychological and physical health, and a smaller body of evidence links workplace injustice to unhealthy behaviors. Although not as well studied, studies show that workplace injustice can influence workers' health through effects on workers' family life and job-related outcomes. CONCLUSION: Injustice is a key contributor to occupational health injustice and prospective studies with oversample of disadvantaged workers and refinement of methods for characterizing workplace injustices are needed.

Occupational injury among hospital patient-care workers: what is the association with workplace verbal abuse?

OBJECTIVE: To test the association between workplace abuse exposure and injury risk among hospital workers. We hypothesized that exposed workers would have higher injury rates than unexposed workers. METHODS: Survey of direct-care workers (n = 1,497) in two hospitals. Exposure to workplace abuse was assessed through self-report; occupational injury reports were extracted from employee records. We tested associations between non-physical workplace violence and injury using log-binomial regression and multilevel modeling. RESULTS: Adjusted prevalence ratio (PR) for injury associated with being yelled at was 1.52 (95% CI 1.19, 1.95); for experiencing hostile/offensive gestures 1.43 (1.11, 1.82); and for being sworn at 1.41 (1.09, 1.81). In analyses by injury subtypes, musculoskeletal injuries were more strongly associated with abuse than were acute traumatic injuries. Associations operated on group and individual levels and were most consistently associated with abuse perpetrated by patients. CONCLUSION: Exposure to workplace abuse may be a risk factor for injuries among hospital workers.

Changing Work and Work-Family Conflict: Evidence from the Work, Family, and Health Network*

Schedule control and supervisor support for family and personal life are work resources that may help employees manage the work-family interface. However, existing data and designs have made it difficult to conclusively identify the effects of these work resources. This analysis utilizes a group-randomized trial in which some units in an information technology workplace were randomly assigned to participate in an initiative, called STAR, that targeted work practices, interactions, and expectations by (a) training supervisors on the value of demonstrating support for employees' personal lives and (b) prompting employees to reconsider when and where they work. We find statistically significant, though modest, improvements in employees' work-family conflict and family time adequacy and larger changes in schedule control and supervisor support for family and personal life. We find no evidence that this intervention increased work hours or perceived job demands, as might have happened with increased permeability of work across time and space. Subgroup analyses suggest the intervention brings greater benefits to employees more vulnerable to work-family conflict. This study advances our understanding of the impact of social structures on individual lives by investigating deliberate organizational changes and their effects on work resources and the work-family interface with a rigorous design.

Impact of implementation factors on children's water consumption in the Out-of-School Nutrition and Physical Activity group-randomized trial.

National data suggest that children are not consuming enough water. Experimental evidence has linked increased water consumption to obesity prevention, and the National AfterSchool Association has named serving water as ones of its standards for healthy eating and physical activity in out-of-school time settings. From fall 2010 to spring 2011, twenty Boston afterschool program sites participated in the Out-of-School Nutrition and Physical Activity (OSNAP) initiative, a group-randomized trial investigating nutrition and physical activity policies and practices that promote child health. Researchers used data from OSNAP to study the key factors that influence the implementation of practices that promote water intake. Aspects of the organizational capacity of the afterschool programs, characteristics of the providers, and the community context were hypothesized to impact changes in children's water consumption. This chapter demonstrates the effectiveness of an afterschool intervention on increases in children's water consumption. It also outlines the substantial influence that implementation factors can have on the effectiveness of an obesity prevention intervention, highlighting the importance of understanding how interventions are delivered in real-world settings.