title: Relationship of body mass index with asthma indicators in head start children.
abstract: OBJECTIVE
  To examine the relationship of body mass index (BMI) and asthma indicators on children with asthma in a Head Start (HS) program.
  
  
  METHODS
  In this cross-sectional study (November 18, 2000, to December 12, 2003) of children aged 3 to 5 years with asthma, we compared the BMI data of HS asthmatic patients (n = 213) with the data of peer control subjects from a sample (n = 816) of the National Health and Nutrition Examination Survey aged 3 to 5 years and with children in prekindergarten in Arkansas public schools (n = 1,024). Parental reports of asthma symptoms, health care use, medication use, school days missed, and quality of life were used as indicators of asthma morbidity. Categorical analysis and chi2 tests were performed to examine the relationship between BMI and asthma morbidity.
  
  
  RESULTS
  The prevalence of overweight (> or =95th percentile) was significantly higher in HS children with asthma compared with the National Health and Nutrition Examination Survey children (P < .001) and Arkansas prekindergarten children (P = .05). Compared with HS asthmatic children with a BMI less than the 85th percentile, HS asthmatic patients with a BMI of the 85th percentile or greater reported significantly more school days missed (P = .02), lifetime hospitalizations (P = .04), emergency department visits (P = .02), and activity limitations (P = .03) and fewer oral corticosteroid bursts (P = .04). There was also a trend for more daytime symptoms (P = .05) and lower quality of life (P = .06). No differences were observed in rescue (P = .28) or controller (P = .47) medications, environmental tobacco smoke exposure (P = .47), positive allergy test results (P = .85), and nighttime symptoms (P > .99).
  
  
  CONCLUSIONS
  Having an increased BMI was associated with more asthma morbidity in this group of HS asthmatic patients. Despite the lack of a clear explanation for the link between asthma and BMI, our data suggest that an increased BMI significantly affects the well-being of young asthmatic patients and should be further addressed.
authors.affiliation: Department of Pediatrics, University of Arkansas for Medical Sciences and Arkansas Children's Hospital, Little Rock 72202-3591, USA. vargasperlaa@uams.edu
authors.forename: Perla A
authors.initials: PA
authors.lastname: Vargas
authors.forename: Tamara T
authors.initials: TT
authors.lastname: Perry
authors.forename: Elias
authors.initials: E
authors.lastname: Robles
authors.forename: Chan-Hee
authors.initials: CH
authors.lastname: Jo
authors.forename: Pippa M
authors.initials: PM
authors.lastname: Simpson
authors.forename: James M
authors.initials: JM
authors.lastname: Magee
authors.forename: Charles R
authors.initials: CR
authors.lastname: Feild
authors.forename: Reza
authors.initials: R
authors.lastname: Hakkak
authors.forename: Polly A
authors.initials: PA
authors.lastname: Carroll
authors.forename: Stacie M
authors.initials: SM
authors.lastname: Jones
mesh_terms: D001741:Black or African American / Q000706:statistics & numerical data; D001249:Asthma / Q000208:ethnology / Q000503:physiopathology / Q000517:prevention & control*; D015992:Body Mass Index; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D018479:Early Intervention, Educational / Q000379:methods*; D005260:Female; D006305:Health Status Indicators; D006801:Humans; D008297:Male; D011795:Surveys and Questionnaires