The following factors are known to increase the likelihood of developing bowel cancer:
– Age – bowel cancer is much more common in people over 50.
– Genetic predisposition – bowel cancer tends to run in families.
– Red meat consumption – high consumption of red meat has been linked to bowel cancer.
It has been suggested that high alcohol consumption is also a factor which makes people more likely to develop bowel cancer.
Design an epidemiological study which would test this suggestion. (5 marks)