GCSE Biology (AQA)

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Risk Factors

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Organisation Animal Tissues, Organs and Organ Systems

Risk Factors

1:09 Disease, Risk Factors and Sampling
Spec 4.2.2.6
Previous Principles of Sampling Data Next Correlation & Causation
  • Scientists analyze patterns in data to study diseases.
  • Risk factors are associated with an increased rate of a disease.
  • A graph is used to illustrate the relationship between mean alcohol consumption per week (X-axis) and the relative risk of death from alcohol-related causes (Y-axis).
  • The graph demonstrates that higher alcohol consumption per week increases the risk of chronic diseases leading to death.
  • Alcohol consumption is identified as a risk factor in this example.
  • Risk factors can include lifestyle choices or environmental and bodily chemicals.
  • Diet is a risk factor for type two diabetes.
  • Environmental radiation exposure is a risk factor for cancers.
  • Diseases can result from multiple interacting factors, including genetic factors.
  • Understanding and interpreting data about risk factors is crucial, especially for exam questions that may involve tables or graphs.

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