Level 3 - Source on Tobacco

• 1. What are the current trends in active tobacco smoking?
  • 1.1 How many people actively smoke tobacco?
  • 1.2 In what forms is tobacco smoked?
  • 1.3 What affects exposure to tobacco?
• 2. What kinds of cancer does tobacco cause in smokers?
  • 2.1 Which cancers are caused by cigarette smoking?
  • 2.2 Which cancers do not appear to be caused by cigarette smoking?
  • 2.3 For which cancers does a link remain unclear?
  • 2.4 Does cigar, pipe or bidi smoking also cause cancer?
  • 2.5 For which cancers does a link remain unclear?
• 3. Does tobacco cause cancer in test animals?
• 4. What other biological effects can active smoking cause?
• 5. What is passive smoking?
• 6. Does passive smoking cause cancer?
  • 6.1 Does passive smoking increase the risk of lung cancer?
  • 6.2 What is known about passive smoking and other human cancers?
  • 6.3 Does passive smoking cause cancer in animals?
• 7. Does passive smoking cause other health effects?
  • 7.1 Does secondhand smoke affect the heart and the respiratory system?
  • 7.2 Does secondhand smoke affect women or the unborn child?
  • 7.3 What other health effects are caused by secondhand smoke?
  • 7.4 Does secondhand smoke cause biological effects in animals?
• 8. Conclusions on tobacco and cancer
  • 8.1 Conclusions on active smoking
  • 8.2 Conclusions on passive smoking