title: Association between obesity and asthma in preschool Mexican children.
abstract: The elevated prevalence of obesity as well as of asthma in preschool children has prompted investigators to speculate that obesity in childhood might be a causal factor in the development of asthma. The results obtained to date are debatable. We investigated the association between obesity and asthma in 1,160 preschool Mexican children. Diagnosis of asthma was performed using the International Study of Asthma and Allergy in Childhood (ISAAC) questionnaire. The body mass index (BMI) in units of kg/m2 was determined, and children were categorized according to age- and gender-specific criteria, such as normal weight (5th-85th percentile), overweight (> or =85th and <95th percentile), and obesity (> or =95th percentile). Power test for logistic regression model was calculated. We found no association between overweight (adjusted OR = 1.02; 95% CI = 0.66-1.58), obesity (adjusted OR = 0.94; 95% CI = 0.68-1.30), and wheezing during the last year as determined by logistic regression model adjusted. We did not find an association between overweight, obesity, and asthma-associated hospitalizations. Further longitudinal studies are required to provide a better understanding of the relationship between obesity and asthma in preschool children.
authors.affiliation: Department of Research in Clinical Epidemiology, No. 6 General Hospital of the Mexican Institute of Social Security, Tampico-Madero City, Mexico. fvazqueznava@gmail.com
authors.forename: Francisco
authors.initials: F
authors.lastname: Vàzquez-Nava
authors.forename: Jaime
authors.initials: J
authors.lastname: Morales Romero
authors.forename: José A
authors.initials: JA
authors.lastname: Crodova Fernandez
authors.forename: Atenogenes H
authors.initials: AH
authors.lastname: Saldívar-González
authors.forename: Carlos F
authors.initials: CF
authors.lastname: Vázquez-Rodriguez
authors.forename: Maria del C
authors.initials: Mdel C
authors.lastname: Barrientos Gomez
authors.forename: Dolorez
authors.initials: D
authors.lastname: Lin-Ochoa
authors.forename: Eliza M
authors.initials: EM
authors.lastname: Vázquez Rodríguez
mesh_terms: D001249:Asthma / Q000150:complications / Q000453:epidemiology*; D002675:Child, Preschool; D015331:Cohort Studies; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D008800:Mexico / Q000453:epidemiology; D009765:Obesity / Q000150:complications / Q000453:epidemiology*; D011795:Surveys and Questionnaires