Table 2.

Number of subsequent claims by year, screening modality, and visit type

Year	Screen Type	Number of Screening Mammograms	Subsequent Visit
			Mammography		Ultrasound		Biopsy
			N	%	N	%	N	%
1999	All	44,055	3,945	9.0	1,164	2.6	896	2.0
2000	All	45,641	4,139	9.1	1,347	3.0	892	2.0
2001	All	49,941	4,769	9.5	1,728	3.5	1,114	2.2
	SFM	49,139	4,659	9.5	1,666	3.4	1,096	2.2
	FFDM	802	110	13.7	62	7.7	18	2.2
2002	All	57,725	5,630	9.8	2,130	3.7	1,395	2.4
	SFM	55,425	5,337	9.6	1,998	3.6	1,349	2.4
	FFDM	2,300	293	12.7	132	5.7	46	2.0
2003	All	56,356	5,116	9.1	190	3.4	1,385	2.5
	SFM	51,843	4,530	8.7	1,676	3.2	1,280	2.5
	FFDM	4,513	586	12.9	254	5.6	116	2.6
2004	All	51,530	4,669	9.1	1,777	3.4	1,155	2.2
	SFM	45,378	4,037	8.9	1,504	3.3	1,039	2.3
	FFDM	6,152	632	10.3	273	4.4	105	1.7
2005	All	49,483	4,389	8.9	1,739	3.5	1,136	2.3
	SFM	40,843	3,466	8.5	1,359	3.3	943	2.3
	FFDM	8,640	923	10.7	380	4.4	193	2.2

SFM= screen-film mammography; FFDM=full field digital mammography