Table 6 Association between endoscopic technique and neoplasia.

Factor	Analysis	All neoplasia-n/N (%)		Odds ratio *	P
*Odds ratio expressed as odds of dysplasia when dye spray/HD scope used relative to odds when it was not used. † Adjusted for year of procedure and age at IBD diagnosis. ‡ As Adjusted Analysis 1, plus additional adjustment for use of HD scope. § Adjusted for year of procedure, age of IBD diagnosis, age of PSC diagnosis and bowel prep quality. ¶ As Adjusted Analysis 1, plus additional adjustment for use of dye spray. CI, confidence interval; HD, high definition; IBD, inflammatory bowel disease; PSC, primary sclerosing cholangitis.
		Not used	Used	(95% CI)	value
Dye spray	Unadjusted	5/178 (2.8%)	25/180 (13.9%)	5.58 (2.08–14.9)	0.001
	Adjusted 1 †	–	–	5.95 (1.55–22.8)	0.009
	Adjusted 2 ‡	–	–	5.02 (1.43–17.7)	0.01
HD scope	Unadjusted	12/199 (6.0%)	18/132 (13.6%)	2.46 (1.14–5.30)	0.02
	Adjusted 1 §	-	-	1.87 (0.72–4.83)	0.20
	Adjusted 2 ¶	-	-	1.93 (0.69–5.40)	0.21