The Kaiser Permanente Research Bank Cancer Cohort: a collaborative resource to improve cancer care and survivorship

Table 1 Kaiser Permanente Research Bank Cancer Cohort response rates by method of case identification

	Cases identified by Rapid Case Ascertainment			KP members with a history of cancer in the EHR
	Number Contacted	Number Consented	% Consented	Number Contacted	Number Consented	% Consented
Sex^a
Female	71,550	7439	10.4%	126,372	11,250	8.9%
Male	56,411	5115	9.1%	92,616	7956	8.6%
Age at Diagnosis (years)^b
< 50	28,466	1956	6.9%
50–59	32,372	2460	7.6%
60–69	48,694	4304	8.8%
70–79	36,287	3462	9.5%
≥ 80	17,844	1118	6.3%
Race/Ethnicity^c
White, non-Hispanic	64,415	9394	14.6%	95,018	14,551	15.3%
Hispanic	24,558	1163	4.7%	47,722	1767	3.7%
Asian	16,607	952	5.7%	28,263	1116	3.9%
Black	14,799	564	3.8%	31,603	1061	3.4%
Multi-Racial	2431	226	9.3%	6293	329	5.2%
Native Hawaiian/Pacific Islander	2073	84	4.1%	3573	105	2.9%
American Indian/Alaska Native	687	55	8.0%	1522	69	4.5%
Other/Unknown	2394	117	4.9%	5005	210	4.2%

^aExcludes 14 people with missing information on sex; ^bAge at diagnosis was not known for all members with a history of cancer at the time of invitation to participate; ^cRace/ethnicity information was obtained from the EHR and may not reflect self-reported data

ISSN: 1471-2407