Table 2.

Multivariate analysis assessing the effect of race on colon cancer survival among 2,537 DoD beneficiaries with colon adenocarcinoma, overall and stratified by age, sex, and tumor stage

Number of patients
StrataAliveDeadHRa,b (95% CI)
Overall
 Non-Hispanic White1,3157131.00 (Reference)
 Non-Hispanic Black3251841.02 (0.86–1.21)
Age
 <50 years
  Non-Hispanic White213731.00 (Reference)
  Non-Hispanic Black74482.03 (1.30–3.19)
 ≥50 years
  Non-Hispanic White1,1026401.00 (Reference)
  Non-Hispanic Black2511360.83 (0.69–1.01)
Sex
 Men
  Non-Hispanic White7864581.00 (Reference)
  Non-Hispanic Black1961141.06 (0.85–1.32)
 Women
  Non-Hispanic White5292551.00 (Reference)
  Non-Hispanic Black129700.97 (0.73–1.29)
Stage
 Local
  Non-Hispanic White6561421.00 (Reference)
  Non-Hispanic Black156180.96 (0.56–1.66)
 Regional
  Non-Hispanic White5802761.00 (Reference)
  Non-Hispanic Black145651.01 (0.76–1.35)
 Distant
  Non-Hispanic White702821.00 (Reference)
  Non-Hispanic Black221000.98 (0.76–1.27)
  • aHR and 95% CI.

  • bModels were adjusted for year at diagnosis, age at diagnosis, race, sex, marital status at diagnosis, active duty status at diagnosis, service branch of active duty member/sponsor, rank of active duty member/sponsor, tumor stage, tumor grade, colon cancer site, comorbidities, recurrence, surgery, chemotherapy, and radiation therapy. Stratified variables were not included in stratified analysis.