title: Obesity risk factors in the ISAAC (International Study of Asthma and Allergies in Childhood) in Mexico City.
abstract: BACKGROUND
  The International Study of Asthma and Allergies in Childhood (ISAAC) has promoted surveys in asthma and allergic diseases using standardized methodologies including validated questionnaires. Many items in the questionnaires have also been implied in the overweight and obesity etiology.
  
  
  OBJECTIVE
  To describe the factors associated with obesity in subjects of 6-7 years and 13-14 years in the ISAAC survey in Mexico City.
  
  
  METHODS
  Data were obtained from questionnaires of children participating in a phase 3b ISAAC survey. Logistic regression was used to determine the obesity risks factors.
  
  
  RESULTS
  The factors related to obesity were weekly consumption of meat (+, positive relationship), vegetables, pasta, rice (+) and quartiles of birth weight (+) in boys of 6-7 years. Having suffered eczema at any time, weekly consumption of fruit, pasta, butter, nuts, potato (+), fast food (+), daily TV viewing (+) in girls of 6-7years. Having suffered eczema at any time, weekly consumption of pasta (+), butter, potato, weekly physical exercise in boys of 13-14 years; weekly consumption of pasta, margarine, milk, fast food (+), currently smoking in girls of 13-14 years.
  
  
  CONCLUSIONS
  There were not common factor patterns for the different groups, birth weight, fast food, TV viewing and lack of exercise have been previously related to pediatric obesity. Asthma was not associated with a higher risk of obesity but medical history of eczema was associated with lower risk of obesity in the 6-7 years girls, and 13-14 years boys. The present study provides the bases for future epidemiological studies and gives some clues on possible public health actions.
authors.affiliation: Unidad de investigación, Hospital General Regional núm. 6, Ciudad Madero, Tamaulipas.
authors.forename: Rafael
authors.initials: R
authors.lastname: Violante
authors.forename: Blanca Estela
authors.initials: BE
authors.lastname: del Río Navarro
authors.forename: Arturo
authors.initials: A
authors.lastname: Berber
authors.forename: Nelly
authors.initials: N
authors.lastname: Ramírez Chanona
authors.forename: Manuel
authors.initials: M
authors.lastname: Baeza Bacab
authors.forename: Juan José Luis
authors.initials: JJ
authors.lastname: Sienra Monge
mesh_terms: D000293:Adolescent; D001249:Asthma / Q000453:epidemiology; D001724:Birth Weight; D002648:Child; D015897:Comorbidity; D004032:Diet; D004485:Eczema / Q000453:epidemiology; D015444:Exercise; D005247:Feeding Behavior; D005260:Female; D005502:Food; D006184:Habits; D006801:Humans; D008297:Male; D008800:Mexico / Q000453:epidemiology; D009765:Obesity / Q000453:epidemiology*; D012307:Risk Factors; D012907:Smoking / Q000453:epidemiology; D011795:Surveys and Questionnaires; D013690:Television; D014028:Tobacco Smoke Pollution / Q000706:statistics & numerical data; D014505:Urban Population
chemical_list: D014028:Tobacco Smoke Pollution