Table 2.

Factors associated with reporting of patients by multiple institutions, by cancer site, Greater Bay Area of California, 2010–11.

Primary invasive cancer site	Reported by integrated health system plus other institution(s)		Not reported by integrated health system but reported by two or more other institutions
	n	%	N	%
Breast
Diagnosed at one institution, treated at another	28	8.8	446	24.5
Diagnosed at one institution, treated there and at other(s)	277	87.1	1147	63.2
Multiple institutions reporting diagnosis and treatment	11	3.5	147	8.1
Diagnosed at multiple institutions, treated at one	<5	0.6	75	1.1
Total	318		1815
Prostate
Diagnosed at one institution, treated at another	63	22.9	297	29.6
Diagnosed at one institution, treated there and at other(s)	193	70.2	427	42.6
Multiple institutions reporting diagnosis and treatment	8	2.9	132	13.2
Diagnosed at multiple institutions, treated at one	11	4.0	146	14.6
Total	275		1002
Lung
Diagnosed at one institution, treated at another	32	16.4	162	20.4
Diagnosed at one institution, treated there and at other(s)	147	75.4	420	53.0
Multiple institutions reporting diagnosis and treatment	5	2.6	107	13.5
Diagnosed at multiple institutions, treated at one	11	5.6	104	13.1
Total	195		793
Pancreas
Diagnosed at one institution, treated at another	7	21.9	81	26.2
Diagnosed at one institution, treated there and at other(s)	15	46.9	87	28.2
Multiple institutions reporting diagnosis and treatment	<5	12.5	56	18.1
Diagnosed at multiple institutions, treated at one	6	18.8	85	27.5
Total	32		309
All invasive cancers
Diagnosed at one institution, treated at another	223	15.0	1857	22.9
Diagnosed at one institution, treated there and at other(s)	1121	75.7	4635	54.8
Multiple institutions reporting diagnosis and treatment	69	4.7	1005	11.9
Diagnosed at multiple institutions, treated at one	68	4.6	969	11.4
Total	1481		8466