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Table 1 Sample characteristics of veterans with colon cancer

From: Impact of alternative approaches to assess outlying and influential observations on health care costs

  Full sample
  (N = 3,842)
  %
Age at diagnosis 66–75 49.2
  76–85 45.8
  86 and older 5.0
Gender Male 96.5
Race African American 15.5
Marital status Not married 37.7
  Married 59.6
  Unknown 2.8
Stage at diagnosis I 26.8
  II 30.7
  III 23.2
  IV 19.3
Comorbidity score a,b 0 51.4
  1 25.6
  2–3 18.5
  4 or higher 4.5
Chemotherapy c Yes 33.6
Colectomy d Yes 89.4
Hospitals with oncology services per capita 4th quartile 24.9
Pre-diagnosis outpatient utilization e High use 23.5
U.S. Census division New England 3.1
  Middle Atlantic 16.6
  East North Central 9.3
  West North Central 10.4
  South Atlantic 18.9
  East South Central 5.8
  West South Central 13.7
  Mountain 2.8
  Pacific 19.4
  1. aDeyo-Charlson Comorbidity Index with Romano adaptations.
  2. bMeasured from months −6 to 0 in study period.
  3. cMeasured from months 0 to 12 in study period.
  4. dMeasured from months −1 to 6 in study period.
  5. eMeasured from months −6 to −1 in study period.