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Association between ambient temperature and chronic rhinosinusitis.

Runming Du1, Wangteng Jiao1, Junxiong Ma1

  • 1Department of Global Health, Peking University School of Public Health, Beijing, China.

International Forum of Allergy & Rhinology
|March 10, 2023
PubMed
Summary

High ambient temperatures significantly increase the risk of chronic rhinosinusitis (CRS) diagnosis. This study links extreme heat exposure to a higher likelihood of CRS exacerbation, impacting public health.

Keywords:
ambient temperaturechronic rhinosinusitisdistributed lag nonlinear modelmatched case-control study

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Area of Science:

  • Environmental Health
  • Epidemiology
  • Otolaryngology

Background:

  • Chronic exposure to particulate matter (PM2.5) is linked to chronic rhinosinusitis (CRS).
  • Elevated temperatures may worsen PM2.5 levels and sinonasal symptoms.
  • This study investigates the relationship between high ambient temperature and CRS risk.

Purpose of the Study:

  • To examine the association between high ambient temperature and the risk of chronic rhinosinusitis (CRS) diagnosis.
  • To understand the impact of extreme heat on CRS exacerbation.
  • To highlight potential public health consequences of climate change on upper airway diseases.

Main Methods:

  • A case-control study identified 4752 patients (2376 CRS cases, 2376 controls) diagnosed between 2013-2022.
  • A distributed lag nonlinear model (DLNM) assessed the effect of maximum ambient temperature.
  • Extreme heat was defined as 35.0°C; conditional logistic regression analyzed the association with CRS diagnosis.

Main Results:

  • Exposure to extreme heat was linked to increased odds of CRS symptom exacerbation (OR 1.11, 95% CI 1.03-1.19).
  • Cumulative extreme heat exposure over 21 days showed a significant association (OR 2.37, 95% CI 1.60-3.50) compared to 25.3°C.
  • The association was stronger in younger and middle-aged individuals and those with abnormal weight.

Conclusions:

  • Short-term exposure to high ambient temperature is associated with increased CRS diagnoses.
  • Findings suggest a link between meteorological phenomena, climate change, and upper airway diseases.
  • This research underscores the public health impact of climate change on respiratory conditions.