Relations between perceptions of environmental features and physical activity.

Studies have examined associations between environmental features and physical activity, but there has been no exploration of adult perceptions about the influence environmental features have on physical activity. This study assessed associations between perceptions of environmental features and physical activity. 305 women and 229 men (18-91 years of age) were interviewed in their homes. Questions elicited self-report data on physical activities they performed in their neighborhood (sidewalks near home) and perceptions about neighborhood environmental features. Women (86.4%) were more likely than men (79.3%) to be active in their neighborhoods and view the features as influential. The influences features were perceived to have on physical activity were associated with activity performed in the neighborhood, but perceptions of the conditions of features were not. Interviewers of adults about relationships between environmental features and physical activity should consider perceptions about the influence the feature exerts on activity levels.

Developing, integrating, and perpetuating new ways of applying sociology to health, medicine, policy, and everyday life.

As a framework for presenting ideas on developing ways to make sociology more applicable, we focus on the recent state of medical sociology research. Data for this paper were generated through a content analysis of a twelve-year period (1993-2004) of the Journal of Health and Social Behavior (JHSB) and Social Science & Medicine (SSM). The analysis aims to determine if the content of JHSB and SSM reflect the breadth of the sub-discipline of medical sociology as well as the stated goals of the journals. The selected issues of JHSB and SSM were coded on the basis of the following attributes: (1) Primary Substantive Topic, (2) Methodology, (3) Data Type and Analytic Technique, and (4) Research and Policy Recommendations. We found that the orientation of JHSB articles was towards generating research and theory that shy away from policy, interdisciplinary approaches, and applied issues. SSM content tends to display more interdisciplinary breadth and variety, but also reflects a dearth of applied recommendations. Our discussion focuses on what JHSB and SSM could be. We present ideas on how the sociological discipline in general-and JHSB and SSM in particular-can help generate and nourish new forms of inquiry that can impact the way research questions are framed. We conclude that such a shift is needed in order to maximize the applicability of social scientific evidence to everyday life, and we share examples situated within a socio-medical context, where there is a particular need for the application of social evidence to practice.

Prevalence of Nasal Colonization by Methicillin-Resistant Staphylococcus aureus in Persons Using a Homeless Shelter in Kansas City.

Nasal colonization of methicillin-resistant Staphylococcus aureus (MRSA) plays an important role in the epidemiology and pathogenesis of disease. Situations of close-quarter contact in groups are generally regarded as a risk factor for community-acquired MRSA strains due to transmission via fomites and person-to-person contact. With these criteria for risk, homeless individuals using shelter facilities, including showers and toilets, should be considered high risk for colonization and infection. The aim of this study was to determine the prevalence of nasal colonization of MRSA in a homeless population compared to established rates of colonization within the public and a control group of subjects from a neighboring medical school campus, and to analyze phylogenetic diversity among the MRSA strains. Nasal samples were taken from the study population of 332 adult participants and analyzed. In addition, participants were surveyed about various lifestyle factors in order to elucidate potential patterns of behavior associated with MRSA colonization. Homeless and control groups both had higher prevalence of MRSA (9.8 and 10.6%, respectively), when compared to the general population reported by previous studies (1.8%). However, the control group had a similar MRSA rate compared to health-care workers (4.6%), while the homeless population had an increased prevalence. Risk factors identified in this study included male gender, age over 50 years, and use of antibiotics within the past 3 months. Phylogenetic relationships between nine of the positive samples from the homeless population were analyzed, showing eight of the nine samples had a high degree of relatedness between the spaA genes of the MRSA strains. This indicates that the same MRSA strain might be transmitted from person-to-person among homeless population. These findings increase our understanding of key differences in MRSA characteristics within homeless populations, as well as risks for MRSA associated with being homeless, such as age and gender, which may then be a useful tool in guiding more effective prevention, treatment, and health care for homeless individuals.

Perceived neighborhood size: implications for physical activity-environment research.

BACKGROUND: Nonsignificant findings are reported in approximately half of the studies examining correlations between environmental characteristics and walking. One reason could involve spatial incongruence in which environments examined are not necessarily the ones where the behavior occurred. PURPOSE: To study correlates of perceived neighborhood size and the congruence between perceived and investigator defined neighborhood areas. METHODS: Door-to-door surveys were conducted in 12 U.S. Census block groups with 18- to 87-year-old adults. Participants were asked about exercise participation and to draw a map representing their neighborhood. Geographical information software was used to construct maps, calculate neighborhood areas, and analyze congruence. RESULTS: Neighborhood sizes perceived by women were smaller than those perceived by men and positively related to min/wk of biking and education. Education and age were negatively and perceived neighborhood support for exercise was positively associated with perceived neighborhood size in men. Approximately 90% of perceived neighborhood areas overlapped with neighborhood areas defined by circles with 1200-m radii from participants' homes. CONCLUSIONS: Several individual characteristics including exercise are associated with perceptions of neighborhood size. Standard investigator-defined neighborhoods using a 1200-m radius (15 min walk) from a participant's home is sufficient to capture a majority of perceived neighborhood areas.

Playground Safety is Associated With Playground, Park, and Neighborhood Characteristics.

BACKGROUND: More than 200,000 children each year are treated at emergency departments for injuries occurring on playgrounds. Empirically derived data are needed to elucidate factors associated with playground safety and reduce injury rates. OBJECTIVE: Determine if neighborhood, park and playground characteristics are significantly associated with playground safety. METHODS: A 24-item report card developed by the National Program for Playground Safety was used to assess playground safety at 41 public parks in a small to midsized, Midwestern city. Trained assessors evaluated the parks and playgrounds in June/July and used a standardized method to count the numbers of users. Data from the 2010 U.S. Census were used to describe the neighborhoods surrounding the parks. RESULTS: The average safety score for all playgrounds was 77.4% which denotes acceptable safety levels. However, 17.1% of the playgrounds were potentially hazardous and in need of corrective measures. Playgrounds were safer in neighborhoods with more youth (< 18 years of age) and educated adults and in parks with better quality features. Playgrounds with fewer amenities were relatively less safe. CONCLUSIONS: Park safety levels need to be improved to reduce the risk of physical injuries. Future studies examining cause-effect associations between environmental features and playground safety are warranted.

Community development corporations could potentially improve research on causal associations between environmental features and physical activity.

BACKGROUND: Community development corporations (CDC) are worldwide entities that create environments facilitating physical activity. At the same time, researchers face challenges conducting cost-effective, longitudinal studies on how environmental changes affect physical activity. OBJECTIVE: To provide evidence suggesting that CDC initiatives could potentially be integrated into a research framework for examining the influence of environmental improvements on physical activity. METHODS: Quality of Life Plans (QLP) developed by a CDC and stakeholders from 6 lower-income neighborhoods were systematically reviewed to obtain data about environmental features targeted for change and the strategies used to bring about those changes. Strategies were deemed pro-physical activity if previous studies suggested they have the potential to affect physical activity. RESULTS: A total of 348 strategies were proposed of which 164 were pro-physical activity. Six environmental features were targeted including crime (57 strategies), aesthetics (39), facilities (30), walkability (17), destinations (14), and programs (5). Strategies involved implementing (90 strategies), planning (33), assessing (26), and securing funding (13). Progress reports indicated that 37.4% of the pro-physical activity strategies were implemented 1 year following the development of the QLPs. CONCLUSIONS: These results suggest that activities of CDCs could potentially be systematically integrated into the scientific study of environmental influences on physical activity.

Bicycling policy indirectly associated with overweight/obesity.

BACKGROUND: Policies to enhance bicycling are correlated with health outcomes. Research has yet to provide an adequate, empirically derived explanation for this finding. PURPOSE: To examine a comprehensive model of a pathway potentially linking bicycle policies to overweight/obesity. METHODS: Data representing multiple years between 2006 and 2012 from CDC, U.S. Census Bureau, U.S. Department of Transportation, and the Alliance for Biking and Walking were subjected to bivariate and multivariate analyses in 2013. A path model was created to explain the relationship between bicycle policies and overweight/obesity in the 48 largest U.S. cities. RESULTS: Zero-order correlations were significant between the number of bicycle policies and the percentage of workers bicycling to work and rates of overweight/obesity. These relationships did not remain statistically significant in the multivariate analysis. However, more bicycle policies were associated with a greater number of bicycle infrastructure components (p<0.005). In turn, bicycling infrastructure components were positively related to the percentage of workers bicycling to work (p<0.001), which was inversely associated with overweight/obesity rates (p<0.05). CONCLUSIONS: The results of this study suggest that large cities with more policies aimed at promoting bicycling have fewer overweight/obese residents, partially because the policies are related to supportive bicycling infrastructures that promote bicycling to work.

Bibliometric measures and National Institutes of Health funding at colleges of osteopathic medicine, 2006-2010.

CONTEXT: During the past 20 years, colleges of osteopathic medicine (COMs) have made several advances in research that have substantially improved the osteopathic medical profession and the health of the US population. Furthering the understanding of research at COMs, particularly the factors influencing the attainment of extramural funds, is highly warranted and coincides with the missions of most COMs and national osteopathic organizations. OBJECTIVES: To describe bibliometric measures (numbers of peer-reviewed publications [ie, published articles] and citations of these publications, impact indices) at COMs from 2006 through 2010 and to examine statistical associations between these measures and the amount of National Institutes of Health (NIH) research funds awarded to COMs in 2006 and 2010. METHODS: A customized, systematic search of the Web of Science database was used to obtain bibliometric measures for 28 COMs. For the analyses, the bibliometric measures were summed or averaged over a 5-year period (2006 through 2010). The NIH database was used to obtain the amount of NIH funds for research grants and contracts received by the 28 COMs. Bivariate and multivariate statistical procedures were used to explore relationships between bibliometric measures and NIH funding amounts. RESULTS: The COMs with 2010 NIH funding, compared with COMs without NIH funding, had greater numbers of publications and citations and higher yearly average impact indices. Funding from the NIH in 2006 and 2010 was positively and significantly correlated with the numbers of publications, citations, and citations per publication and impact indices. The regression analysis indicated that 63.2% and 38.5% of the total variance in 2010 NIH funding explained by the model (adjusted R(2)=0.74) was accounted for by 2006 NIH funding and the combined bibliometric (ie, publications plus citations), respectively. CONCLUSION: Greater scholarly output leads to the procurement of more NIH funds for research at COMs.