. 2015 Dec 16;10(4):443–448. doi: 10.1093/ecco-jcc/jjv229

Table 2.

Patients diagnosed with Crohn’s disease [CD], ulcerative colitis [UC], and coeliac disease [CeD] after urea breath test [UBT] in the Helicobacter pylori-negative and -positive groups. Events [n], odds ratios [ORs], hazard ratios [HRs], and 95% confidence intervals [CIs] are shown.

	N	Patient at time of UBT [n]		[%]	OR	[95% CI]	Patients after UBT [n]	HR	[95% CI]
H. pylori-negative	45 023	CD	116	0.24			173	REF
		UC	308	0.68			250	REF
		CeD	41	0.09			74	REF
H. pylori-positive	10 978	CD	8	0.07	0.36^a	[0.17–0.75]	21	0.59^b	[0.36–0.96]
		Unadjusted			0.30 ^a	[0.15–0.62]		0.49 ^b	[0.31–0.78]
		UC	63	0.57	0.89^a	[0.67–1.18]	45	0.90^b	[0.64–1.27]
		Unadjusted			0.89 ^a	[0.64–1.10]		0.73 ^b	[0.53–1.00]
		CeD	5	0.05	0.65^a	[0.24–1.73]	10	0.59^b	[0.29–1.22]
		Unadjusted			0.50 ^a	[0.20–1.27]		0.55 ^b	[0.28–1.06]

REF, reference value; unadjusted values shown by italics.

^aOdds ratio and confidence interval compared with H. pylori-negative.

^bHazard ratio and confidence interval compared with patients who were H. pylori-negative before urea breath test.