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Table 3 Multivariate model 1 : radiation in last six months of life 2

From: Radiation therapy at the end of life: a population-based study examining palliative treatment intensity

  OR 95% CI P value
Race/ethnicity     
Non-Hispanic White     
All Others 1.18 1.12 1.25 <.0001
Age at diagnosis     
Age 65 - 69     
Age 70 - 74 0.86 0.79 0.93 0.0002
Age 75 - 79 0.74 0.68 0.80 <.0001
Age 80 - 84 0.61 0.57 0.66 <.0001
85+ 0.41 0.38 0.44 <.0001
Charlson index     
0     
1 1.01 0.96 1.07 0.6427
2 or more 1.07 1.01 1.13 0.0144
Marital status     
Unmarried     
Married 1.15 1.10 1.20 <.0001
Cancer type     
Breast     
Colorectal 0.65 0.62 0.69 <.0001
Prostate 0.82 0.76 0.88 <.0001
Prior radiation     
No     
Yes 1.45 1.37 1.53 <.0001
Surgery (last 6 months of life)     
No     
Yes 1.17 1.11 1.23 <.0001
Chemotherapy (last 6 months of life)     
No     
Yes 2.78 2.63 2.93 <.0001
Stage at diagnosis     
0-3     
4 0.70 0.66 0.73 <.0001
  1. 1Referent group is the first line in each category, unless otherwise indicated.
  2. 2Additional factors for which we controlled in the multivariate model included census region, urban/rural designation, education, and time alive from diagnosis until death.