Table 7.

Unadjusted and adjusted odds ratios comparing enhanced to traditional fee-for-service produced from the breast cancer screening model

	Year	Unadjusted			Adjusted for Patient Characteristics			Adjusted for Patient and Physician Characteristics
		Odds Ratio	95% CI	p-value	Odds Ratio	95% CI	p-value	Odds Ratio	95% CI	p-value
Income Q1 (lowest)
Enhanced vs. traditional fee-for-service	2005	0.97	(0.95–1.00)	0.0438	0.97	(0.94–0.99)	0.0123	0.97	(0.95–1.00)	0.0646
	2006	1.02	(1.00–1.04)	0.1186	1.01	(0.98–1.03)	0.5442	1.02	(0.99–1.04)	0.2084
	2007	1.05	(1.01–1.08)	0.0141	1.03	(0.99–1.06)	0.1498	1.04	(1.01–1.08)	0.0165
	2008	1.06	(1.01–1.11)	0.0169	1.06	(1.01–1.11)	0.0187	1.08	(1.03–1.14)	0.0009
	2009	1.07	(1.01–1.14)	0.0147	1.10	(1.04–1.16)	0.0017	1.10	(1.04–1.16)	0.0015
	2010	0.99	(0.92–1.06)	0.8048	1.01	(0.94–1.09)	0.7935	1.04	(0.97–1.12)	0.2686
	2011	1.07	(0.98–1.17)	0.1351	1.09	(0.99–1.19)	0.0711	1.14	(1.04–1.25)	0.0043
	2012	1.11	(1.00–1.23)	0.0551	1.16	(1.04–1.29)	0.0058	1.15	(1.03–1.28)	0.0117
Income Q5 (highest)
Enhanced vs. traditional fee-for-service	2005	1.03	(1.00–1.05)	0.027	1.04	(1.01–1.06)	0.0033	1.03	(1.01–1.06)	0.0135
	2006	1.03	(1.01–1.05)	0.0167	1.04	(1.02–1.07)	0.0002	1.06	(1.03–1.08)	<.0001
	2007	1.11	(1.07–1.15)	<.0001	1.11	(1.07–1.16)	<.0001	1.13	(1.09–1.17)	<.0001
	2008	1.14	(1.09–1.2)	<.0001	1.15	(1.09–1.21)	<.0001	1.18	(1.12–1.24)	<.0001
	2009	1.20	(1.13–1.28)	<.0001	1.22	(1.15–1.30)	<.0001	1.21	(1.14–1.29)	<.0001
	2010	1.22	(1.13–1.32)	<.0001	1.24	(1.14–1.34)	<.0001	1.25	(1.15–1.36)	<.0001
	2011	1.26	(1.14–1.40)	<.0001	1.29	(1.17–1.43)	<.0001	1.33	(1.20–1.47)	<.0001
	2012	1.14	(1.02–1.28)	0.0276	1.19	(1.06–1.35)	0.0035	1.19	(1.05–1.34)	0.005
Ratios of Odds Ratios
Difference in enhanced vs. traditional fee-for-service between Q1 vs. Q5	2005	0.95	(0.91–0.98)	0.002	0.93	(0.90–0.97)	<.0001	0.94	(0.91–0.98)	0.002
	2006	0.99	(0.96–1.02)	0.594	0.97	(0.94–1.00)	0.032	0.96	(0.93–0.99)	0.014
	2007	0.94	(0.90–0.99)	0.018	0.92	(0.88–0.97)	0.002	0.93	(0.88–0.97)	0.003
	2008	0.93	(0.87–0.99)	0.029	0.92	(0.86–0.99)	0.018	0.92	(0.86–0.98)	0.016
	2009	0.89	(0.82–0.97)	0.006	0.90	(0.83–0.98)	0.011	0.91	(0.84–0.99)	0.020
	2010	0.81	(0.73–0.90)	0.000	0.82	(0.73–0.91)	0.000	0.83	(0.75–0.93)	0.001
	2011	0.85	(0.74–0.97)	0.014	0.84	(0.74–0.96)	0.011	0.86	(0.75–0.98)	0.027
	2012	0.97	(0.83–1.14)	0.716	0.97	(0.83–1.14)	0.734	0.97	(0.82–1.13)	0.671

Results for Q2-Q4 not shown. Ratios of odds ratios are also presented, with Q5 and traditional fee-for-service serving as referent groups