Two-year delay in ulcerative colitis diagnosis is associated with anti-tumor necrosis factor alpha use

Table 4 Risk factors predictive of 24-mo diagnostic delay according to the univariate and multivariate analyses

	Univariate		Multivariate
	OR (95%CI)	P value	OR (95%CI)	P value
Age (≥ 60 yr vs < 60 yr)	7.533 (1.021-55.557)	0.020	14.778 (1.731-126.121)	0.014
Smoking history (no vs yes)	2.550 (1.249-5.206)	0.008	2.688 (1.239-5.747)	0.012
Misdiagnosed as hemorrhoids (no vs yes)	4.663 (1.842-11.803)	0.000	11.066 (3.596-34.053)	0.000

OR: Odd ratio; CI: Confidence interval.