Figure 1

Colorectal cancer and adenomas: prevalence and risk of different age groups. The prevalence (with 95% confidence interval) of cancer, advanced adenomas and adenomas (≤5 mm and 6 - 9 mm) for each age group (less than 50 years, 50 - 59 years, 60 - 69 years and more than 70 years) and the odds ratio (with 95% confidence interval) of having cancer, advanced adenomas and adenomas for the age groups 50 - 59 years, 60 - 69 years and more than 70 years compared to those less than 50 years. 6784 patients had no cancer, advanced adenomas or adenomas, 507 had adenomas ≤ 5 mm, 286 had adenomas 6 - 9 mm, 468 had advanced adenomas and 159 had cancer.