Case Control Study
Copyright ©2014 Baishideng Publishing Group Inc.
World J Gastroenterol. Jul 21, 2014; 20(27): 9116-9120
Published online Jul 21, 2014. doi: 10.3748/wjg.v20.i27.9116
Table 1 Endoscopic findings in the study vs control groups n (%)
PilotsControlsP value
Total n = 270Total n = 1150
Age, yr (range)55.2 (39-74)55.7 (40-75)
Endoscopic finding
Normal185 (68.5)805 (70)0.65
Hyperplastic polyps42 (15.5)108 (9.4)0.004
Adenomatous polyps41 (14.8)234 (20.34)0.06
Advanced adenoma16 (5.9)54 (4.7)0.49
> 3 polyps5 (1.85)32 (2.8)0.51
High-grade dysplasia2 (0.7)9 (0.78)0.94
Cancer2 (0.7)8 (0.69)0.93