300832
Longitudinal and cross-sectional association of park access with weight status
Methods: We used data from Waves 1 and 2 of the Los Angeles Family and Neighborhood Survey (LAFANS), a multi-level, population-based survey of individuals living in Los Angeles County administered from 2000-2002 and 2006-2008, respectively. Data from the California Protected Areas Database was cross-referenced with 2001 land use data from the Southern California Association of Governments to identify park space. Multilevel regression models examined the cross-sectional and longitudinal association of park availability with Body Mass Index (BMI) adjusting for age, gender, race/ethnicity and household income and accounting for clustering at the census tract.
Results: In cross-sectional analyses four park access indicators were negatively associated with BMI. However, in longitudinal analyses, few associations were significant. Results were suggestive of a longitudinal association between park density in the census tract (number of parks per square mile) and BMI with increasing park density being associated with lower BMI at Wave 2 (p<0.07).
Conclusions: The current results suggest there may be inconsistencies between associations found in cross-sectional analyses and those found in longitudinal analyses. However, these results provide some evidence that increasing density of parks can contribute to reduced BMI over 6 years.
Learning Areas:
Environmental health sciencesEpidemiology
Public health or related research
Social and behavioral sciences
Learning Objectives:
Describe the health risks associated with obesity
Identify factors associated with changes in BMI
Discuss the relationship between access to parks and obesity
Keyword(s): Built Environment, Obesity
Qualified on the content I am responsible for because: I am a senior research scientist at the UCLA Center for Health Policy Research. For the past twelve years I have directed research examining the social and environmental factors related to overweight and obesity, chronic health conditions, and health-related behaviors such as physical activity, and dietary behavior. I have served as PI or investigator on many research projects and am currently studying the impact of neighborhood environments on obesity and health.
Any relevant financial relationships? No
I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.