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Table 4 Outcome (percentage) that would have been detected using the model if colonoscopy restricted

From: The value of age and medical history for predicting colorectal cancer and adenomas in people referred for colonoscopy

Group to which colonoscopy restricted Cancer
(%)
Advanced Adenoma
(%)
Adenomas
6 - 9 mm
(%)
Adenomas ≤ 5 mm
(%)
Aged 40+ (89.5% of patients) 100.0 97.0 97.2 97.4
Top 89.5% predicted probability of cancer from model 98.7 96.8 93.0 92.5
Aged 60+ and no previous colonoscopy (16% of patients) 49.1 28.2 20.6 18.9
Top 16% predicted probability of cancer from model 64.8 28.2 16.8 17.8