Table 1.

Screening Mammography Use Among Medicare Female Beneficiaries Before and After 2009

	% Screened	Frequency of usea	% Screened	Frequency of usea	% Screened	Frequency of usea
Age 65–74	Screening use 2007–2009		Screening use 2010–2012		Test of difference
No. of women	5,400,259		5,674,176
Total	60.8	2.1	60.1	2.1	<0.001	0.002
Race
White	62.6	2.1	61.8	2.1	<0.001	<0.001
Black	54.0	1.9	55.4	2.0	<0.001	<0.001
Hispanic	50.6	1.8	50.5	1.8	0.191	0.017
Other	50.0	1.9	49.6	1.9	0.021	0.008
Mortalityb	Screened	Not screened	Screened	Not screened
	2.1	12.9	2.0	12.0
Age ≥75	Screening use 2007–2009		Screening use 2010–2012		Test of difference
No. of women	6,891,206		6,732,053
Total	33.6	1.9	31.7	1.9	<0.001	<0.001
Race
White	34.6	1.9	32.5	1.9	<0.001	0.084
Black	27.9	1.8	28.5	1.8	<0.001	<0.001
Hispanic	26.8	1.7	25.4	1.7	<0.001	<0.001
Other	26.9	1.8	24.3	1.8	<0.001	0.627
Mortalityb	Screened	Not screened	Screened	Not screened
	5.9	33.0	5.7	32.4

^aPer screened woman.

^bThree-year mortality.