. Author manuscript; available in PMC: 2020 Aug 10.

Published in final edited form as: Clin Gastroenterol Hepatol. 2015 Sep 4;14(2):279–86.e1-2. doi: 10.1016/j.cgh.2015.08.033

Table 2:

Association between receipt of colonoscopy and colorectal cancer, 2000–2010

Cancer Location	Endoscopic Test	Cases, n (%)	Controls, n (%)	OR (95% CI)^*	P^*
All	No Colonoscopy	4387(85.6)	14797 (72.1)	1.00
All	Colonoscopy	741 (14.5)	5715 (27.9)	0.41 (0.38–0.44)	<0.0001

Proximal Colon	No Colonoscopy	1714 (80.7)	6092 (71.7)	1.00
Proximal Colon	Colonoscopy	410 (19.3)	2404 (28.3)	0.58 (0.51–0.65)	<0.0001

Distal Colon/Rectum	No Colonoscopy	2546 (89.5)	8264 (72.6)	1.00
Distal Colon/Rectum	Colonoscopy	300 (10.5)	3120 (27.4)	0.29 (0.25–0.33)	<0.0001

conditional logistic regression results