Split-dose bowel preparation improves adequacy of bowel preparation and gastroenterologists’ adherence to National Colorectal Cancer Screening and Surveillance Guidelines

Table 3 Adjusted odds ratios of guideline consistent recommendations in average-risk patients (n = 4023)

Characteristic	OR	P value	95%CI
Year 2011	1.25	0.010	(1.05, 1.47)
Age, yr
≤ 55	1.00
55-65	0.80	0.020	(0.67, 0.97)
65-75	0.64	< 0.001	(0.50, 0.82)
≥ 75	0.40	0.004	(0.21, 0.74)
Male	0.94	0.440	(0.79, 1.11)
Race/ethnicity
White or Hispanic	1.00
Black	0.90	0.520	(0.66, 1.24)
Asian	1.09	0.630	(0.76, 1.56)
Others	1.00	0.990	(0.61, 1.64)
BMI (kg/m2)	0.99	0.100	(0.97, 1.00)
Current Narcotics1 use	0.79	0.140	(0.59, 1.08)
Current TCA use	0.89	0.710	(0.50, 1.60)
Type II diabetes	0.68	0.006	(0.52, 0.89)
Polyp presence	2.29	< 0.001	(1.89, 2.77)
GI fellow presence	1.48	0.020	(1.06, 2.08)

¹Narcotics are opioids and their derivatives; Common narcotics include morphine, heroin, hydrocodone, oxycodone, methadone, and clonitazene. BMI: Body mass index; TCA: Tricyclic antidepressant.