title: Physical and social home environment in relation to children's overall and home-based physical activity and sedentary time.
abstract: BACKGROUND
  Given the obesity epidemic, it is critical to understand factors associated with youth physical activity and sedentary behavior at home, where youth spend significant time. We examined relationships between these child behaviors and home environment factors.
  
  
  METHODS
  Data were obtained from 713 children aged 6 to 11 in Washington and California 2007-2009. Multivariate regression analyses controlling for socio-demographics examined associations between parent-reported home environment factors and child's accelerometer-measured moderate-to-vigorous physical activity (MVPA) and sedentary time, overall and at home, and parent-reported child screen time.
  
  
  RESULTS
  Children averaged 47.2% of time at home, which included 43.6% and 46.4% of overall MVPA and sedentary behavior, respectively. Parental support for physical activity and having a basketball hoop were positively associated with MVPA and negatively associated with sedentary behavior. Combined parental support and a basketball hoop was associated with even higher MVPA. Children with fewer bedroom media devices and more fixed play equipment had lower overall sedentary behavior and screen time than either factor alone. Findings were similar regardless of weight status.
  
  
  CONCLUSIONS
  Physical and social home environment variables, especially when combined, were related to more child MVPA and less sedentary behavior. Results support addressing multiple home environment factors in childhood obesity prevention.
authors.affiliation: Seattle Children's Research Institute, M/S CW8-6, PO Box 5371, Seattle, WA 98145, USA; University of Washington, Box 354920, Seattle, WA 98115-8160, USA. Electronic address: Pooja.tandon@seattlechildrens.org.
authors.forename: Pooja
authors.initials: P
authors.lastname: Tandon
authors.affiliation: Seattle Children's Research Institute, M/S CW8-6, PO Box 5371, Seattle, WA 98145, USA; University of Washington, Box 354920, Seattle, WA 98115-8160, USA. Electronic address: mollie.grow@seattlechildrens.org.
authors.forename: H Mollie
authors.initials: HM
authors.lastname: Grow
authors.affiliation: Department of Nutritional Sciences, University of Cincinnati, 363B French Building East, 3202 Eden Avenue, Cincinnati, OH 45267-0394, USA. Electronic address: couchsc@ucmail.uc.edu.
authors.forename: Sarah
authors.initials: S
authors.lastname: Couch
authors.affiliation: Schools of Medicine and Nursing, University of Pennsylvania, 801 Blockley Hall, 423 Guardian Drive, Philadelphia, PA 19104, USA. Electronic address: kglanz@upenn.edu.
authors.forename: Karen
authors.initials: K
authors.lastname: Glanz
authors.affiliation: University of California, San Diego, 3900 Fifth Avenue, Suite 310, San Diego, CA 92103, USA. Electronic address: jsallis@ucsd.edu.
authors.forename: James F
authors.initials: JF
authors.lastname: Sallis
authors.affiliation: University of British Columbia, Schools of Population and Public Health and Community and Regional Planning, University of British Columbia, Room 360B, 2206 East Mall, Vancouver BC V6T 1Z3, Canada. Electronic address: ldfrank@urbandesign4health.com.
authors.forename: Lawrence D
authors.initials: LD
authors.lastname: Frank
authors.affiliation: Seattle Children's Research Institute, M/S CW8-6, PO Box 5371, Seattle, WA 98145, USA; University of Washington, Box 354920, Seattle, WA 98115-8160, USA. Electronic address: brian.saelens@seattlechildrens.org.
authors.forename: Brian E
authors.initials: BE
authors.lastname: Saelens
mesh_terms: D061725:Accelerometry; D000886:Anthropometry; D001490:Basketball; D002140:California; D002648:Child; D016208:Databases, Factual; D004777:Environment; D015444:Exercise; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D015999:Multivariate Analysis; D009765:Obesity / Q000517:prevention & control; D016487:Parenting; D057185:Sedentary Behavior; D012931:Social Environment; D014861:Washington
keywords: Basketball; Childhood obesity; Electronic media; Home environment; Parental support; Physical activity equipment; Screen time