Table 4.

Association between early vs. late post-colonoscopy colorectal cancer (PCCRC) and index colonoscopy quality and examination findings.

		Early PCCRC		Late PCCRC
Model	At Index Colonoscopy	n	(%)	n	(%)	OR	(95% CI)
	Total	441		765
1	Colonic segment* examined
	Yes	401	(93.5)	720	(97.0)	1.00	(reference)
	No	28	(6.5)	22	(3.0)	2.42	(1.27, 4.60)
2	Polyp detected at colonic segment*
	No	314	(71.2)	579	(75.7)	1.00	(reference)
	Yes	127	(28.8)	186	(24.3)	1.27	(0.94, 1.72)
3	Polyp detected at colonic segment*
	No	314	(71.2)	579	(75.7)	1.00	(reference)
	Yes, <10 mm	61	(13.8)	133	(17.4)	0.85	(0.59, 1.24)
	Yes, ≥10 mm	66	(15.0)	53	(6.9)	2.38	(1.53, 3.70)
4	Polyp excision at colonic segment*
	No polyp	303	(73.0)	558	(77.0)	1.00	(reference)
	Complete excision	77	(18.6)	154	(21.2)	0.95	(0.67, 1.34)
	Incomplete excision	35	(8.4)	13	(1.8)	4.76	(2.35, 9.65)

n, number.

Odds ratios (OR) and 95% confidence intervals (CI) were adjusted for age, sex, race/ethnicity, family history of colorectal cancer, year of index colonoscopy, and medical region.

^*Colonic segment refers to the segment of the colon where the PCCRC was subsequently found.