Interpreting Lung Disease Data

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  • Interpreting Lung Disease Data
    • Risk factors
      • All diseases have factors that increase persons chance of getting it. E.g if you smoke, more likely to get lung cancer
      • Example of correlation: link between two things. Correlation NOT cause
    • Smoking and lung cancer
      • 1) Describe data- graph showing number of adult males in GB who smoke decreased 1990-2012. Another graph shows male lung cancer mortality rate decreased between 1990-2012 UK
      • 2) Draw conclusions- Correlation between number of males who smoked and mortality rate for male lung cancer. Not a cause, other factors involved e.g less asbestos used in homes
      • Other points: One graph shows mortality rate. Cases of lung cancer may have increased but medical advances meant more people survivng
    • Response to data
      • Medical studies documented link between smoking and cancer
      • Prompted voluntary agreement- stated tobacco adverts came with health warning label
      • October 2008- picture health warnings made compulsory on cigarette boxes
    • Air pollution and asthma
      • 1) Describe data- Graph showing number of new cases of asthma fell from 87-62 per 100,000 people between 1996-2000. Another graph shows emissions of sulfur dioxide in UK fell between 1996-2000 from 1-1.2 million tonnes
      • 2) Draw conclusions- Link between number of new cases of asthma and emissions in UK.As cases of asthma fell so did emissions. Correlation NOT cause
      • Other points: Graph shows new cases. Rate may be decreasing, existing cases may be getting worse. Emissions from whole of UK but air pollution varies from area to area e.g cities more polluted.


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