Table 4.

Predictive Models of 1-Year and 3-Year Mortality as a Function of National Cancer Center Cancer Center Attendance in African-American Medicare Beneficiaries With an Incident Diagnosis of Breast, Lung, Colon/Rectal, or Prostate Cancer as Identified in Surveillance, Epidemiology, and End Results-Medicare Data^a

	Mortality: OR (95% CI)b
	Attended an NCI Cancer Center		Did Not Attend an NCI Cancer Center
African Americans vs Caucasians	All-Cause	Cancer-Specific	All Cause	Cancer-Specific
1-Year mortality	0.95 (0.77–1.17)	0.95 (0.76–1.19)	1.15 (1.09–1.21)	1.14 (1.08–1.21)
3-Year mortality	0.98 (0.82–1.18)	1.00 (0.82–1.21)	1.23 (1.17–1.28)	1.26 (1.20–1.33)

OR indicates odds ratio; CI, confidence interval; NCI, National Cancer Institute.

^aAttendance was defined as 2 or more claim days in the first 12 months after diagnosis.

^bAdjusted models included the covariates age at diagnosis; sex; travel time to the nearest NCI cancer center; predominance of primary care before diagnosis; stage; cancer site; rurality; comorbidities; Surveillance, Epidemiology, and End Results registry of residence at diagnosis; and year of diagnosis.