Table 2.

Proportion (%) of Duals and Nonduals Undergoing Colorectal Cancer Screening Procedures

	Fecal Occult Blood Test		Flexible Sigmoidoscopy		Colonoscopy with Either FLEX or COL		Colonoscopy Only
	Duals	Nonduals	Duals	Nonduals	Duals	Nonduals	Duals	Nonduals
By age (years)
65–69	6.00	13.56	0.98	2.32	0.50	0.95	2.14	2.66
70–74	6.01	13.74	0.87	2.17	0.50	0.95	0.48	0.97
75–79	5.53	12.65	0.78	1.82	0.44	0.87	2.04	2.74
80–84	4.62	10.36	0.58	1.29	0.32	0.65	1.65	2.31
85+	3.09	6.62	0.35	0.70	0.17	0.34	1.01	1.43
By race
White	5.10	12.53	0.70	1.89	0.39	0.85	1.76	2.57
African American	4.64	7.42	0.78	1.32	0.37	0.59	1.92	2.27
All other	5.96	10.48	0.80	1.58	0.45	0.73	1.90	2.23
By sex
Male	4.41	10.78	0.73	2.10	0.40	0.90	1.85	2.88
Female	5.39	13.21	0.73	1.67	0.39	0.78	1.80	2.31
Total unadjusted	5.14	12.20	0.73	1.85	0.39	0.83	1.82	2.54
Total adjusted*	5.17	12.30	0.75	1.81	0.42	0.82	1.88	2.52

^*Age–race–sex-adjusted rates of screening, using direct risk adjustment method

All statistics significant at p<.001