Table 2.

Unadjusted Associations of Access to Health Care With Patterns of Colorectal Cancer Testing Among Medicare Enrollees: MCBS 2000 and 2005

	Unadjusted Odds Ratio (95% CI)^aStudy Year
	2000			2005
Study Parameters	Endoscopy >5 y	FOBT	Recent Endoscopy	Endoscopy >5 y	FOBT	Recent Endoscopy
CI=conficence interval; FOBT = home fecal occult blood test; MCBS = Medicare Current Beneficiary Survey; ref = reference.
^a Estimates derived from single-predictor multinomial logistic regression models.
Usual place of health care
Primary care	Ref	Ref	Ref	Ref	Ref	Ref
Non–primary care	1.08 (0.81–1.45)	0.91 (0.75–1.09)	0.83 (0.72–0.96)	0.88 (0.69–1.14)	1.12 (0.86–1.46)	0.83 (0.68–1.02)
No usual place of care	0.95 (0.69–1.30)	0.25 (0.18–0.36)	0.31 (0.24–0.41)	0.37 (0.25–0.56)	0.16 (0.10–0.26)	0.18 (0.14–0.24)
Insurance types
Medicare Part B only	0.52 (0.35–0.76)	0.42 (0.31–0.57)	0.38 (0.31–0.48)	0.66 (0.51–0.86)	0.71 (0.54–0.92)	0.42 (0.35–0.51)
Medicare-Medicaid	0.36 (0.26–0.51)	0.34 (0.27–0.43)	0.38 (0.32–0.46)	0.53 (0.41–0.68)	0.57 (0.42–0.77)	0.38 (0.31–0.46)
Supplemental Insurance	Ref	Ref	Ref	Ref	Ref	Ref
Delayed medical care due to cost	0.92 (0.63–1.34)	0.74 (0.56–0.98)	0.67 (0.53–0.84)	1.03 (0.74–1.43)	0.75 (0.52–1.06)	0.68 (0.55–0.84)