International Journal of Public Health (Oct 2023)

Effect of Annual Influenza Vaccination on the Risk of Lung Cancer Among Patients With Hypertension: A Population-Based Cohort Study in Taiwan

  • Hung-Chang Jong,
  • Jing-Quan Zheng,
  • Jing-Quan Zheng,
  • Jing-Quan Zheng,
  • Cai-Mei Zheng,
  • Cai-Mei Zheng,
  • Cai-Mei Zheng,
  • Cheng-Hsin Lin,
  • Cheng-Hsin Lin,
  • Cheng-Hsin Lin,
  • Chun-Chih Chiu,
  • Chun-Chih Chiu,
  • Chun-Chih Chiu,
  • Min-Huei Hsu,
  • Min-Huei Hsu,
  • Yu-Ann Fang,
  • Yu-Ann Fang,
  • Yu-Ann Fang,
  • Wen-Rui Hao,
  • Wen-Rui Hao,
  • Wen-Rui Hao,
  • Chun-Chao Chen,
  • Chun-Chao Chen,
  • Chun-Chao Chen,
  • Chun-Chao Chen,
  • Tsung Yeh Yang,
  • Tsung Yeh Yang,
  • Tsung Yeh Yang,
  • Kang-Yun Lee,
  • Kang-Yun Lee,
  • Kang-Yun Lee,
  • Ju-Chi Liu,
  • Ju-Chi Liu,
  • Ju-Chi Liu

DOI
https://doi.org/10.3389/ijph.2023.1605370
Journal volume & issue
Vol. 68

Abstract

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Objectives: Lung cancer is a main contributor to all newly diagnosed cancers worldwide. The chemoprotective effect of the influenza vaccine among patients with hypertension remains unclear.Methods: A total of 37,022 patients with hypertension were retrospectively enrolled from the Taiwan National Health Insurance Research Database. These patients were further divided into a vaccinated group (n = 15,697) and an unvaccinated group (n = 21,325).Results: After adjusting for sex, age, comorbidities, medications, level of urbanization and monthly income, vaccinated patients had a significantly lower risk of lung cancer occurrence than unvaccinated patients (adjusted hazard ratio [aHR]: 0.56, 95% confidence interval [CI]: 0.47–0.67). A potential protective effect was observed for both sexes and in the elderly age group. With a greater total number of vaccinations, a potentially greater protective effect was observed (aHR: 0.75, 95% CI 0.60–0.95; aHR: 0.66, 95% CI: 0.53–0.82; aHR: 0.26, 95% CI: 0.19–0.36, after receiving 1, 2–3 and ≥4 vaccinations, respectively).Conclusion: Influenza vaccination was associated with a lower risk of lung cancer among patients with hypertension. The potentially chemoprotective effect appeared to be dose dependent.

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