Table 5.

Reasons for no treatment with trastuzumab among HER2-positive women with distant metastatic or regional (after 2004) breast cancer

Reason	Distant metastatic		Regional
	1998–2004	2005–2007	2005–2007
Patient received trastuzumab outside KPNW	1	1	3
Patient had congestive heart failure	0	0	3
Patient declined or physician decided not to treat	3	0	2
Unrecorded negative FISH result	5	1	0
Equivocal FISH result	1	0	2
No positive HER2 result found in chart review	1	0	0
Unknown	0	0	3
Total	11	2	13