Increased risk of incident nasopharyngeal carcinoma with exposure to air pollution

PLoS One. 2018 Sep 28;13(9):e0204568. doi: 10.1371/journal.pone.0204568. eCollection 2018.

Abstract

Background: Nasopharyngeal carcinoma (NPC) is a race-specific malignancy. The nasal cavity is the main entry point for air pollutants or poisonous gases into the human body. However, the risk of NPC in populations exposed to air pollution remains unknown.

Methods: We combined data from the Taiwan Air Quality Monitoring Database (TAQMD) and the Longitudinal Health Insurance Database (LHID) to assess the risk of NPC in a population exposed to air pollution.

Results: Multivariate analysis revealed positive trends for the association between the risk of NPC and exposure to air pollution. After adjusting for potential covariates, the risk of developing NPC increased with the increase in nitrogen dioxide (NO2) and fine particulate matter (PM2.5) exposure concentrations from 1.39 to 2.28 and 2.01 to 1.97, respectively, compared to the risks at the lowest concentration levels.

Conclusions: We identified a significant risk of NPC in a population exposed to air pollution. However, this study had several limitations. Moreover, additional experimental and clinical studies on the associations between environmental factors and NPC risk are warranted.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Air Pollutants / adverse effects
  • Air Pollutants / analysis
  • Air Pollution / adverse effects*
  • Air Pollution / analysis
  • Databases, Factual
  • Environmental Exposure / adverse effects
  • Environmental Exposure / analysis
  • Environmental Monitoring
  • Female
  • Humans
  • Longitudinal Studies
  • Male
  • Middle Aged
  • Multivariate Analysis
  • Nasopharyngeal Carcinoma / epidemiology
  • Nasopharyngeal Carcinoma / etiology*
  • Nitrogen Dioxide / adverse effects
  • Nitrogen Dioxide / analysis
  • Particulate Matter / adverse effects
  • Particulate Matter / analysis
  • Risk Factors
  • Sulfur Dioxide / adverse effects
  • Sulfur Dioxide / analysis
  • Taiwan / epidemiology
  • Young Adult

Substances

  • Air Pollutants
  • Particulate Matter
  • Sulfur Dioxide
  • Nitrogen Dioxide

Grants and funding

This study was supported in part by the Taiwan Ministry of Health and Welfare Clinical Trial and Research Center of Excellence (MOHW105-TDU-B-212-133019); China Medical University Hospital, Academia Sinica Taiwan Biobank, Stroke Biosignature Project (BM104010092); the NRPB Stroke Clinical Trial Consortium (MOST 103-2325-B-039 -006); the Tseng-Lien Lin Foundation, Taichung, Taiwan; the Taiwan Brain Disease Foundation, Taipei, Taiwan; the Katsuzo and Kiyo Aoshima Memorial Funds, Japan; and the CMU under the Aim for Top University Plan from the Ministry of Education of Taiwan. (CMU is China Medical University; NRPB is National Research Program for Biopharmaceuticals.)