Table 3. Univariate and multivariate analysis of factors associated with colonoscopy cancellations.

Characteristics	Univariate unadjusted			Multivariate adjusted
	Odds ratio	P value		Odds ratio	P value
Education level
Illiterate	Ref	N/A		Ref	N/A
High school	1.15	0.46		1.09	0.68
College	1.13	0.56		1.01	0.96
Grad school	1.95	0.03		1.93	0.04
Ethnicity
African American	Ref	N/A		Ref	N/A
Caucasian	0.7	0.12		0.75	0.2
Asian	0.49	0.12		0.42	0.06
Hispanic	0.47	<0.01		0.47	<0.01
Other ethnicity	0.09	0.02		0.01	0.02
Dementia	0.44	0.18
Cancer	1.28	0.16
Constipation	1.44	0.02		1.29	0.13
Iron supplement	1.49	0.02		1.26	0.19
Hemoglobin <10	1.64	<0.01		1.41	0.05
Indication for colonoscopy
Bleeding/iron deficiency anemia	Ref	N/A		Ref	N/A
Malignancy evaluations	0.73	0.35		0.84	0.61
Constipation/diarrhea/pain	0.89	0.64		1.14	0.62
Other indications	0.43	<0.01		0.53	0.04