Performing colonoscopy in elderly and very elderly patients: Risks, costs and benefits

Table 3 Outcomes for 1244 individuals who underwent screening colonoscopy; classification is according to the most advanced lesion for each patient[41]

Age group (yr)	n	Patients with advanced neoplasia	Mean life-expectancy (yr)	Mean polyp lag time2 (yr)	Mean LE extension (yr)	Adjusted mean LE extension
50-54	1034	331 (3.2%)	28.87	5.23	0.85	2.94%
75-79	147	7 (4.7%)	10.37	5.44	0.17	1.64%
80+	63	93 (14%)	7.59	3.58	0.13	1.71%

LE _extension: Extension of life expectancy due to screening colonoscopy. Adjusted LE _extension (%) = (LE _extension/LE) × 100.

¹Includes one patient with high grade dysplasia and two patients with cancers;

²These values are calculated only for patients with neoplastic findings, not the entire group;

³Includes two patients with high-grade dysplastic polyps and one with cancer.