title: Socio-economic environment, area facilities and obesity and physical inactivity among children.
abstract: BACKGROUND
  To evaluate whether the relationship between socio-economic environment and obesity and physical inactivity in children can be explained by household socio-economic position and area facilities.
  
  
  METHODS
  Two indicators of the socio-economic context of neighbourhood of residence based on wealth and deprivation were estimated in a sample of 727 children and adolescents residents in Madrid (Spain). Multilevel logit models were used to calculate the relationship between each indicator and obesity and physical inactivity.
  
  
  RESULTS
  After adjusting for household socio-economic position, obesity prevalence was 3.79 times higher among subjects living in deprived areas than among those living in non-deprived areas (CI: 1.95-7.34), and 2.38 higher among subjects living in less wealthy areas than in those living in wealthier areas (CI: 0.85-6.65). Adjustment for the availability of retail shops in subjects' neighbourhood of residence failed to change the magnitude of the association. Neither neighbourhood socio-economic context nor availability of sports facilities was related to physical inactivity.
  
  
  CONCLUSIONS
  In the city of Madrid, socio-economic context of neighbourhood of residence shows an inverse relationship with obesity but not with physical inactivity among children. The relationship observed with obesity is not explained by the availability of area facilities.
authors.affiliation: Department of Preventive Medicine and Public Health, Faculty of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain.
authors.forename: Rosa
authors.initials: R
authors.lastname: Villanueva
authors.affiliation: Department of Preventive Medicine and Public Health, Faculty of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain ralbadal@ucm.es.
authors.forename: Romana
authors.initials: R
authors.lastname: Albaladejo
authors.affiliation: Department of Preventive Medicine and Public Health, Faculty of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain.
authors.forename: Paloma
authors.initials: P
authors.lastname: Astasio
authors.affiliation: Department of Preventive Medicine and Public Health, Faculty of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain.
authors.forename: Paloma
authors.initials: P
authors.lastname: Ortega
authors.affiliation: Department of Preventive Medicine and Public Health, Faculty of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain.
authors.forename: Juana
authors.initials: J
authors.lastname: Santos
authors.affiliation: Department of Preventive Medicine and Public Health, Faculty of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.
authors.forename: Enrique
authors.initials: E
authors.lastname: Regidor
mesh_terms: D000293:Adolescent; D002648:Child; D004777:Environment; D015444:Exercise; D005260:Female; D006801:Humans; D008297:Male; D063766:Pediatric Obesity / Q000453:epidemiology*; D012111:Residence Characteristics / Q000706:statistics & numerical data*; D012959:Socioeconomic Factors; D013030:Spain / Q000453:epidemiology