Table 2.

Distribution of Eligible Patient Populations for Screening According to Sample Design (SD) Definition

	Breast cancer screening				Cervical cancer screening				Colorectal cancer screening
Center	SD A	SD B	SD C	SD C as a % of total	SD A	SD B	SD C	SD C as a % of total	SD A	SD B	SD C	SD C as a % of total
A1	1,140	741	589	52	2,802	1,646	1,211	43	1,011	654	535	53
A2	1,526	1,081	887	58	2,939	1,860	1,457	50	1,512	1,046	866	57
B1	2,832	1,763	1,257	44	5,862	3,224	2,046	35	2,821	1,801	1327	47
B2	682	451	295	43	1,431	884	529	37	541	365	236	44
C1	695	386	193	28	1,774	931	391	22	547	336	164	30
C2	1,470	929	438	30	4,445	2,413	819	18	1,379	877	459	33
D1	297	179	97	33	628	399	185	30	265	167	85	32
D2	3,475	2,554	1,630	47	7,441	5,341	3,180	43	2,897	2,112	1,318	46
E1	404	255	190	47	1,102	645	424	39	310	212	155	50
E2	4,508	3,034	2,305	51	8,170	5,089	3,491	43	4,339	2,936	2,202	51
F1	3,689	2,480	2,181	59	10,903	7,493	6,357	58	3,075	2,022	1,773	58
F2	2,266	1,628	1,357	60	6,851	4,988	4,018	59	1,824	1,278	1,088	60
G	1,977	661	576	29	5,101	1,727	1,436	28	1,768	516	455	26
H	1,042	733	623	60	2,913	1,861	1,360	47	1,252	903	776	62
I	808	686	501	62	1,967	1,637	1,092	56	685	589	398	58
Total	26,811	17,561	13,119	49	64,329	40,138	27,996	44	24,226	15,814	1,1837	49

Sample design A. All patients seen at any time during 2002–2004

Sample design B. All patients with at least one visit in 2004

Sample design C. All patients with at least one visit in 2004 AND at least one visit in 2002 or 2003

The bold numbers indicate the lowest and highest percentages across the CHCs