Table 4.

Rates of CPM (1996–2009)

		No		Yes
		n	%	n	%
CPM
All	21,608	20,771	96.1	837	3.9
Year of diagnosis
1996	1,640	1,604	97.8	36	2.2
1997	1,054	1,032	97.9	22	2.1
1998	1,069	1,046	97.8	23	2.2
1999	1,314	1,287	97.9	27	2.1
2000	1,221	1,200	98.3	21	1.7
2001	1,210	1,181	97.6	29	2.4
2002	1,301	1,267	97.4	34	2.6
2003	1,478	1,437	97.2	41	2.8
2004	1,482	1,431	96.6	51	3.4
2005	1,972	1,907	96.7	65	3.3
2006	1,920	1,828	95.2	92	4.8
2007	1,902	1,801	94.7	101	5.3
2008	2,011	1,879	93.4	132	6.6
2009	2,034	1,871	92.0	163	8.0

Abbreviation: CPM, contralateral prophylactic mastectomy.