Appendix 1:

Patient and plan characteristics of the study sample by plan year (expanded).

	2004		2005		2006		2007		2008		2009		2010		2011		2,012		2,013		2,014
Total eligible women	1,541,293		1,682,880		1,717,175		1,812,643		1,877,042		1,899,439		1,822,460		1,859,587		1,834,060		1,806,802		1,550,172
	N	%	N	%	N	%	N	%	N	%	N	%	N	%	N	%	N	%	N	%	N	%
Age group
40–49	748738	48.6	781201	46.4	776330	45.2	782,219	43.2	792520	42.2	793317	41.8	756609	41.5	753,605	40.5	735914	40.1	714790	39.6	610755	39.3
50–64	712430	46.2	805231	47.8	841223	49	912,690	50.4	961148	51.2	982932	51.7	968118	53.1	997,685	53.6	991603	54.0	994378	55.0	853726	55.1
65–74	80125	5.2	96448	5.7	99d622	7	117,734	6.5	123374	6.6	123190	6.5	97733	5.4	108,297	5.8	106543	5.8	97634	5.4	85691	5.5
Race/ Ethnicity
Asian	37238	2.5	41319	2.6	44,430	2.6	48950	2.7	54565	3	57346	3.1	58151	3.2	60169	3.3	63253	3.5	66434	3.7	61166	4
Black	119293	8.1	135118	8.4	149183	8.9	184593	10.4	204731	11.1	217844	11.7	203382	11.3	203142	11.1	194204	11	189518	10.8	143698	9.3
Hispanic	102636	7	117034	7.2	128774	7.7	138335	7.8	146347	7.9	148630	7.9	139647	7.8	147783	8.1	146298	8.1	149079	8.4	148393	9.6
Unknown	77716	5.3	78578	4.9	75769	4.5	72523	4.1	71977	3.9	71139	3.8	68864	3.8	70667	3.9	70794	3.9	70865	4.0	64498	4.2
White	1127103	77	1244468	77	1277982	76.2	1335906	75	1369492	74.1	1374358	73.5	1323619	73.8	1348028	73.7	1327896	73.7	1296616	73.1	1119535	72.8
Poverty status
≤ 400% FPL	166484	25.3	216758	26.4	263015	27.2	351354	28.5	443456	28.6	484987	28.6	456895	28	467937	28	457793	27.8	446216	27.7	377226	27.3
> 400% FPL	490780	74.7	603230	73.6	704202	72.8	883257	71.5	1106552	71.4	1207793	71.4	1172272	72	1201347	72	1189682	72.2	1164497	72.3	1005723	72.7
Health plan type
Exclusive provider organization	188227	12.2	208464	12.4	231443	13.5	241,700	13.3	250424	13.3	278490	14.7	264555	14.5	257321	13.8	234274	12.8	225,590	12.5	152754	10
Health maintenance organization	300351	19.5	246983	14.7	213850	12.5	179418	9.9	203425	10.8	190703	10.0	164262	9.0	172422	9.2	170999	9.3	163472	9	138436	8.9
Indemnity	37795	2.5	48321	2.9	47184	2.7	42813	2.4	40668	2.2	35151	18.5	28570	1.6	24507	1.3	19967	1.1	15208	0.8	13294	0.9
Other	4764	0.3	4,566	0.3	2842	0.2	2720	0.15	3399	0.2	4060	0.2	4640	0.2	5043	0.3	6393	0.3	7974	0.4	11573	0.7
Point of service	793903	51.5	1011096	60.1	1084223	63.1	1216779	67.1	1273626	67.9	1301432	68.5	1304292	71.6	1348917	72.6	1356900	74	1349249	74.7	1202317	77.6
Preferred provider organization	216253	14.0	163450	9.7	137112	7.8	128813	7.1	105073	5.6	88964	4.7	55457	3.0	50751	2.7	44810	2.4	44475	2.5	31521	2
Zero cost share for mammography service	455037	81.9	535894	83.5	605499	88	666513	89.4	688749	88.9	737797	92.1	696861	93.1	735804	96.9	715723	97.2	718,904	97.7	607449	98.2