Table 2.

Comparison of gastroenterologist ACG members by level of self-reported perceived patient barriers to optimal bowel preparation and physician and practice characteristics.

	Low barriers (<4)		High barriers (≥4)		χ2	p-value
	N	%	N	%
Age					13.85	0.003
25–39	26	37.1	44	62.9
40–49	39	50.7	38	49.3
50–59	47	60.3	31	39.7
60+	38	67.9	18	32.1
Gender					0.38	0.54
Male	130	53.1	115	46.9
Female	25	58.1	18	41.9
Race					0.99	0.91
White	108	52.9	96	47.1
Hispanic	6	66.7	3	33.3
Black	7	50.0	7	50.0
Asian	26	53.1	23	46.9
Other	5	62.5	3	37.5
Medical school					1.75	0.19
U.S.	104	49.8	105	50.2
Non-U.S	34	59.7	23	40.3
Specialty/Board Certification					0.24	0.63
GI	131	54.1	111	45.9
Non-GI	20	50.0	20	50.0
Years experience performing colonoscopy					3.78	0.05
≤16	65	47.1	73	52.9
>16	80	58.8	56	41.2
Geographic location					4.97	0.026
Northeast	60	63.2	35	36.8
Other	95	49.2	98	50.8
Setting					3.33	0.19
Urban	77	48.1	83	51.9
Suburban	61	58.6	43	41.4
Rural	11	61.1	7	38.9
Teaching hospital affiliation					1.56	0.21
Yes	91	50.6	89	49.4
No	60	58.3	43	41.7
Practice setting					5.30	0.02
Private	104	58.4	74	41.6
Hospital/university/other	47	44.3	59	55.7
Colonoscopies per week					0.12	0.73
≤20	65	52.0	60	48.0
>20	86	54.1	73	45.9
Proportion of suboptimal bowel preparations per week					9.92	0.0016
≤10	123	56.7	94	43.3
>10	16	32.0	34	68.0