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. Author manuscript; available in PMC: 2014 Jan 9.
Published in final edited form as: Am J Gastroenterol. 2010 Aug 3;105(9):10.1038/ajg.2010.264. doi: 10.1038/ajg.2010.264

Table 2.

Prevalence of findings on colonoscopy according to warfarin status

No Yes P value warfarin vs. no
warfarin
Missing
Total 9,265 372 629
Signifi cant fi ndings
Polyp >9mm 950 (10.3) 55(14.8) 0.003 81 (12.9)
Suspected malignant tumor 131 (1.4) 7(1.9) 0.48 12 (1.9)
Polyp >9mm or tumor 1,054 (11.4) 60(16.1) 0.001 93 (14.8)