Prevalence of allergic sensitization to Platanus occidentalis among adults with allergic rhinitis: A multicenter study

  • 0Clinical Allergy and Immunology Department, New Civil Hospital of Guadalajara "Dr. Juan I. Menchaca," Guadalajara, Mexico.

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Summary

This summary is machine-generated.

Allergic sensitization to sycamore pollen (Platanus occidentalis) affects over 20% of adult allergic rhinitis patients in Mexico. Co-sensitization to other allergens like trees, weeds, and pet dander is common.

Area Of Science

  • Allergen immunotherapy
  • Environmental allergies
  • Clinical immunology

Background

  • Limited studies in the Americas assess allergic sensitization to sycamore pollen (Platanus occidentalis) in adult allergic rhinitis (AR) patients.
  • Sycamore pollen is a potential allergen contributing to seasonal allergic rhinitis symptoms.

Purpose Of The Study

  • To determine the prevalence of allergic sensitization to Platanus occidentalis pollen in adult patients with AR in Mexico.
  • To identify factors associated with P. occidentalis allergic sensitization.

Main Methods

  • A cross-sectional study was conducted in three Mexican centers (northwest, west, southeast).
  • Allergic sensitization to P. occidentalis was assessed using skin prick tests.
  • Prevalence and 95% confidence intervals (CI) were calculated.

Main Results

  • 404 adult AR patients were included; 20.8% (95% CI, 17.1%-25.0%) showed sensitization to P. occidentalis.
  • Prevalence varied by region: 15.9% (northwest), 21.8% (west), and 22.4% (southeast).
  • Multivariate analysis linked sensitization to tree pollens (OR, 3.19), weeds (OR, 2.49), fungi (OR, 1.96), and pet dander (OR, 1.88).

Conclusions

  • Allergic sensitization to P. occidentalis pollen is a significant issue in AR patients in Mexico.
  • The study recommends considering challenge testing for P. occidentalis in AR patients, particularly in regions where the tree is prevalent.

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