Verifying the operational definition of neighborhood for the psychosocial impact of structural deterioration

The physical decay of neighborhoods is associated with social conditions such as disease risk, poor mental health, and fear of crime. Researchers assessing neighborhood effects commonly operationalize neighborhoods via municipal boundaries such as U.S. Census Tracts, although more sophisticated analyses examine structures within a defined radius of respondents, typically .25-mile. This study verifies the .25-mile heuristic as a sound operational definition for neighborhood residential structures consequential to social conditions with measures of social contact with neighbors, perceptions of social capital, fear of neighborhood crime, and satisfaction with neighborhood quality of life. Deteriorating commercial structures cluster in smaller areas than deteriorating residential structures; however, the peak consequential radius appears to occur at 4 times the distance of residential structures. © 2007 Wiley Periodicals, Inc.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/57514/1/20216_ftp.pd

Neighbourhood built environment associations with body size in adults:mediating effects of activity and sedentariness in a cross-sectional study of New Zealand adults

Background: The aim of this study was to determine the associations between body size and built environment walkability variables, as well as the mediating role of physical activity and sedentary behaviours with body size. Methods: Objective environment, body size (body mass index (BMI), waist circumference (WC)), and sedentary time and physical activity data were collected from a random selection of 2033 adults aged 20-65 years living in 48 neighbourhoods across four New Zealand cities. Multilevel regression models were calculated for each comparison between body size outcome and built environment exposure. Results and Discussion: Street connectivity and neighborhood destination accessibility were significant predictors of body size (1 SDchange predicted a 1.27 to 1.41 % reduction in BMI and a 1.76 to 2.29 % reduction in WC). Significantrelationships were also observed for streetscape (1 SD change predicted a 1.33 % reduction in BMI) anddwelling density (1 SD change predicted a 1.97 % reduction in BMI). Mediation analyses revealed asignificant mediating effect of physical activity on the relationships between body size and street connectivity and neighbourhood destination accessibility (explaining between 10.4 and 14.6 % of the total effect). No significant mediating effect of sedentary behaviour was found. Findings from this cross-sectional study of a random selection of New Zealand adults are consistent with international research. Findings are limited to individual environment features only; conclusions cannot be drawn about the cumulative and combined effect of individual features on outcomes. Conclusions: Built environment features were associated with body size in the expected directions. Objectively-assessed physical activity mediated observed built environment-body size relationships

An ecological model of active transportation

In this chapter, we introduce the social–ecological approach which posits that human behaviour is influenced by multiple levels of influence. These levels include individual factors (e.g., characteristics of the child such as age, gender and ethnicity), interpersonal factors (e.g., the influence of parents and friends), community factors (e.g., school policies and practices, and social norms), the built and physical environment (e.g., roads, sidewalks, cycle paths, weather, etc.) and policies (e.g., municipal, regional and national policies). Using a social–ecological model of active transportation, we briefly describe the five levels of influence that will be discussed in the following chapters. We emphasize that these levels of evidence do not exist in isolation from one another. Indeed, considering possible interactions between the levels of influence is important for researchers and practitioners involved in designing, implementing and evaluating active transportation interventions. We then define key language pertaining to the factors associated with active transportation and provide a detailed overview of the type of studies that can contribute to our knowledge of the factors associated with active transportation. This section should be particularly helpful for the reader who is not familiar with the terminology used in research studies

Disseminating Policy and Environmental Change Interventions: Insights from Obesity Prevention and Tobacco Control

PURPOSE: Evidence-based interventions are increasingly called for as a way to improve health behaviors such as tobacco use, physical inactivity, and poor diet. Numerous organizations are disseminating interventions that target individual-level behavioral change. Fewer are disseminating interventions that target the policy and environmental changes required to support healthier behaviors. This paper aims to describe the distinct features of policy and environmental change and the lessons learned by two Centers for Disease Control and Prevention-funded dissemination projects, the Center for Training and Research Translation (Center TRT) and Counter Tobacco. METHODS: Both Center TRT and Counter Tobacco have conducted formative research with their target audiences to customize dissemination to address practitioner-reported needs and preferences. The Centers’ have developed the following approach to disseminating policy and environmental change interventions: (1) Identify the best available evidence rather than waiting for the best possible evidence, (2) disseminate menus of broad intervention strategies, (3) provide implementation guidance, (4) incorporate stories from the field, (5) build practitioners’ capacity, and, (6) integrate dissemination into practitioners’ existing professional and social networks. In 2012, over 26,000 unique visitors accessed the Center TRT website and downloaded over 12,400 documents. The Counter Tobacco website has had 10,907 unique visitors since its launch in August 2011, and the number of visitors is increasing rapidly. CONCLUSIONS: Both Centers have had success reaching their intended audiences. Research is now needed to assess the extent of practitioners’ use of disseminated recommendations, guidance, and tools in practice and the impact of the resulting interventions