Table 3

Adjusted* predicted probabilities, ORs, and 95% CIs for the relationship between clinic location and receipt of diabetic eye screening for Medicare and non-Medicare populations (N=118 707)

	Medicare (n=69 239)						Non-Medicare (n=49 468)
Clinic location	Rural/urban			Rural/urban+health system			Rural/urban			Rural/urban+health system
Clinic location	Predicted probability	OR	95% CI	Predicted probability	OR	95% CI	Predicted probability	OR	95% CI	Predicted probability	OR	95% CI
Urban advantaged	57.4	Ref	–	54.8	Ref	–	52.4	Ref	–	49.2	Ref	–
Rural advantaged	54.2	0.87	0.81 to 0.94	50.8	0.84	0.77 to 0.92	45.6	0.76	0.70 to 0.82	43.3	0.78	0.70 to 0.88
Urban	51.6	0.78	0.75 to 0.81	51.1	0.85	0.81 to 0.90	45.4	1.12	1.07 to 1.18	46.8	0.90	0.85 to 0.96
Rural	55.2	0.91	0.86 to 0.96	49.7	0.80	0.74 to 0.86	48.7	0.86	0.80 to 0.92	43.7	0.80	0.73 to 0.87
Urban underserved	45.9	0.62	0.58 to 0.65	50.3	0.83	0.77 to 0.89	39.9	0.60	0.56 to 0.64	50.3	1.05	0.96 to 1.16
Rural underserved	51.1	0.76	0.67 to 0.87	45.8	0.67	0.56 to 0.81	48.5	0.85	0.73 to 1.01	43.3	0.78	0.63 to 0.97

*Models are adjusted for age, sex, chronic conditions (ie, HCC index), and where noted for health system (ie, single variable representing each of the 100 largest health systems in the database).
HCC, hierarchical condition category; Ref, reference group.