Table 1.

Number of women without breast cancer who had a bilateral mastectomy (BM) in England, 2002–2011

	Number of women who had a BM	Incidence per 100 000 women aged 25–69	Annual trend
			IRR (95% CI)	p Value
2002	71	0.4	1.16 (1.13 to 1.18)	<0.001
2003	72	0.4
2004	101	0.6
2005	131	0.7
2006	147	0.8
2007	201	1.1
2008	186	1.0
2009	232	1.2
2010	238	1.3
2011	255	–