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Noninvasive Sampling of Mucosal Lining Fluid for the Quantification of In Vivo Upper Airway Immune-mediator Levels
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Environmental risk factors of rhinitis in early infancy

Jocelyn M Biagini1, Grace K LeMasters, Patrick H Ryan

  • 1Department of Environmental Health, University of Cincinnati, and Division of Allergy and Immunology, Department of Pediatrics, Cincinati Children's Hospital Medical Center, OH 45267-0056, USA. biaginjm@email.uc.edu

Pediatric Allergy and Immunology : Official Publication of the European Society of Pediatric Allergy and Immunology
|June 15, 2006
PubMed

Insights

Environmental tobacco smoke (ETS) exposure significantly increases the risk of allergic rhinitis in infants. Visible mold is linked to upper respiratory infections (URI), but ETS is the primary driver for infant rhinitis development.

Area of Science:

  • Pediatrics
  • Environmental Health
  • Immunology

Background:

  • Infant allergic rhinitis risk factors are understudied.
  • Environmental exposures like tobacco smoke and mold are potential contributors to respiratory illnesses in early childhood.

Purpose of the Study:

  • To investigate the association between environmental tobacco smoke (ETS) and visible mold exposure and the development of allergic rhinitis, rhinitis, and upper respiratory infection (URI) in infants.
  • To identify key environmental risk factors for respiratory conditions in a birth cohort with at least one allergic parent.

Main Methods:

  • A birth cohort study with parents who were skin prick test (SPT) positive.
  • Data collection via questionnaires for ETS exposure and URI symptoms.
  • Home visits to assess visible mold levels (none, low, high).
  • Infant SPT at age one.

Main Results:

  • Infants exposed to >20 cigarettes/day had increased odds of allergic rhinitis (OR=2.7) and rhinitis symptoms (OR=1.9).
  • Visible mold exposure was associated with more frequent URI (low mold OR=1.5; high mold OR=5.1).
  • Older siblings showed a protective effect against rhinitis and allergic rhinitis.

Conclusions:

  • Environmental tobacco smoke (ETS) exposure is a significant risk factor for infant rhinitis and allergic rhinitis.
  • Visible mold may be a stronger risk factor for URI than ETS.
  • Early life environmental exposures critically influence respiratory health outcomes in infants.

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