Table 1: Patient's demographics

Age Groups 50 -< 75 years N = 108 ≥ 75 years N = 105
N = 108 N = 105
Indication p = 0.899
Screening
Diagnostic
Surveillance
48 (44.4%)
30 (27.8%)
30 (27.8%)
44 (41.9%)
32 (30.5%)
29 (27.6%)
p = 0.708
p = 0.665
p = 0.979
High Grade Lesion 20 (18.5%) 14 (13.3%) p = 0.302
Screening
Diagnostic
Surveillance
4/48 (8.3%)
7/30 (23.3%)
9/30 (30%)
8/44 (18.2%)
5/32 (15.6%)
1/29 (3.4%)
p = 0.161
p = 0.443
p = 0.007
Died 11 (10.3%) 26 (24.8%) p = 0.005
Survival times (months) 131.1 ± 3.7 106.9 ± 3.5 p = 0.009
Screening
Diagnostic
Surveillance
138.9 ± 3.5
107.3 ± 6.9
105.4 ± 5.9
110.3 ± 5.1
93.9 ± 6.8
116.8 ± 4.8
p = 0.019
p = 0.055
p = 0.087

Data: Mean ± SE. High grade lesions: adenomas > 1 cm, tubulovillous adenomas, villous polyps, high-grade dysplasia or cancer.