Asthma, atopy, and lung function among racially diverse, poor inner-urban Minneapolis schoolchildren

Ian A. Greaves, Ken Sexton, Malcolm N. Blumenthal, Timothy R. Church, John L. Adgate, Gurumurthy Ramachandran, Ann L. Fredrickson, Andrew D. Ryan, Mindy S. Geisser

Research output: Contribution to journalArticle

Abstract

As part of an assessment of schoolchildren's environmental exposures and health, a probability sample of 136 children from diverse racial/ethnic backgrounds was drawn from grades 2-5 of two inner-urban Minneapolis schools (Whittier, Lyndale). Questionnaires were administered to a parent/guardian; blood samples for IgE and lung function tests were obtained. Overall adjusted rates for lifetime asthma (15.4%; 95%CI 9.3-21.5%), asthma in the last 12 months (13.6%; 7.8-19.4%), and current asthma medication use (10.5%; 5.3-15.7%) were higher than reported US national rates. Adjusted rates for lifetime physician-diagnosed asthma differed significantly among racial/ethnic groups (P<0.01): African-Americans (25.9%), White/Others (25.8%), Hispanics (9.3%), Somalis (1.8%), Asians (0%). Corresponding rates for atopy (total IgE>100 IU/mL or an allergen-specific IgE>0.35 IU/mL) were: African-Americans (66.6%), White/Others (100%), Hispanics (77.2%), Somalis (78.1%), Asians (81.8%). Lung function (FEV1, FVC) was analyzed by linear regression using log-transformed data: significant race-specific differences in lung function were found relative to White/Others (P<0.001 for each racial/ethnic group): African-Americans (FEV1 -16.5%, FVC -16.9%), Somalis (-22.7%, -26.8%), Hispanics (-12.2%, -11.4%) and Asians (-11.1%, -12.4%). Females had significantly lower FEV1 (-8.8%) and FVC (-11.0%) than males. An unexplained, significant difference in children's lung function was found between the two schools. A history of physician-diagnosed asthma was not associated with decreased lung function. Factors other than poverty, inner-urban living, and IgE levels (atopy) need to be considered in the development of childhood asthma.

Original languageEnglish (US)
Pages (from-to)257-266
Number of pages10
JournalEnvironmental research
Volume103
Issue number2
DOIs
StatePublished - Feb 1 2007
Externally publishedYes

Keywords

  • Asthma
  • Atopy
  • Home and school environments
  • Lung function
  • Minority children

ASJC Scopus subject areas

  • Biochemistry
  • Environmental Science(all)

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  • Cite this

    Greaves, I. A., Sexton, K., Blumenthal, M. N., Church, T. R., Adgate, J. L., Ramachandran, G., Fredrickson, A. L., Ryan, A. D., & Geisser, M. S. (2007). Asthma, atopy, and lung function among racially diverse, poor inner-urban Minneapolis schoolchildren. Environmental research, 103(2), 257-266. https://doi.org/10.1016/j.envres.2006.09.002