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Risk factors change probability

Risk factors change probability

Flow chart linking a possible risk factor to an observed disease association, showing causal and confounding pathways and the study designs cohort, case-control and randomised controlled trial

Health in biology means physical, mental and social wellbeing, not just the absence of disease. A risk factor is any variable linked with a higher probability of a disease or health condition.

Risk factors, data and health studies Lesson

  1. A Level
  2. /Biology
  3. /Risk factors, data and health studies

Step-by-step lessons on Edexcel A A Level Biology Risk factors, data and health studies. Each one builds up to exam-style questions. Build a strong foundation in cell biology and biochemistry early on, since later topics on genetics, ecology and physiology all draw on these core concepts.

Lessons