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[Lung cancer].

T Sobue1

  • 1Cancer Information and Epidemiology Division, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan.

Gan to Kagaku Ryoho. Cancer & Chemotherapy
|March 13, 2001
PubMed
Summary
This summary is machine-generated.

Lung cancer deaths are rising in Japan, primarily due to an aging population. Despite decreasing smoking rates, high male smoking prevalence necessitates stronger anti-smoking campaigns and further research into risk factors.

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Area of Science:

  • Oncology
  • Epidemiology
  • Public Health

Context:

  • Lung cancer mortality in Japan has been increasing, largely attributed to population aging.
  • Age-specific lung cancer death rates for individuals under 79 have recently plateaued, correlating with reduced smoking prevalence since 1966.
  • Despite this, Japan's male smoking rate remains exceptionally high compared to other developed nations, underscoring the need for intensified anti-smoking initiatives.

Purpose:

  • To analyze the trends in lung cancer deaths in Japan.
  • To evaluate the impact of smoking and other risk factors on lung cancer incidence and mortality.
  • To identify areas for further epidemiological research in Japan.

Summary:

  • Cigarette smoking is a significant risk factor for lung cancer in Japan, with relative risks of 4-5 fold for males and 2-3 fold for females.

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  • Population attributable risks are estimated at 70% for males and 15-25% for females, highlighting smoking as the primary driver.
  • Observed relative and population attributable risks are lower than in other developed countries, suggesting a need for more Japanese epidemiological data.
  • Other contributing factors include occupational exposures, diet, air pollution, environmental tobacco smoke, indoor radon, and pre-existing lung conditions.

    • Impact:

    • Provides critical insights into lung cancer epidemiology in Japan.
    • Highlights the persistent public health challenge posed by high smoking rates among Japanese males.
    • Emphasizes the need for continued research to understand regional variations in lung cancer risk factors and to inform targeted prevention strategies.