Clinical Trials Study
Copyright ©The Author(s) 2015.
World J Gastroenterol. Jan 14, 2015; 21(2): 593-599
Published online Jan 14, 2015. doi: 10.3748/wjg.v21.i2.593
Table 1 Cumulative polyp detection rates by colonoscope and withdrawal method n (%)
ABCDP values
Conventional colonoscope, Standard WithdrawalRetroView™ colonoscope, Standard WithdrawalRetroView™ colonoscope, Retroflexed WithdrawalRetroView™ colonoscope, Combination Withdrawal (Standard + Retroflexed)
Hidden polyps7 (12)11 (18)51 (85)56 (93)A vs B, P = 0.5
(n = 60)A vs C, P < 0.0001
A vs D, P < 0.0001
Obvious polyps21 (84)19 (76)16 (64)24 (96)A vs B, P = 0.4
(n =25)A vs C, P = 0.7
A vs D, P < 0.0001
C vs D, P = 0.01
All polyps28 (32)30 (35)67 (79)80 (94)A vs C, P < 0.001
(n =85)A vs D, P < 0.0001
C vs D, P < 0.01