Characteristic | Elderly (N = 57602) | Non-Elderly (N = 55928) | P-value |
---|---|---|---|
Age, mean (SD), years | 77.5 (5.3) | 60.2 (7.0) | N/A |
Gender |  |  | < 0.0001 |
 Female | 26217 (45.5) | 24050 (43.0) |  |
 Male | 31385 (54.5) | 31878 (57.0) |  |
Race |  |  | < 0.0001 |
 White | 50439 (87.6) | 45708 (81.7) |  |
 Non-white | 7163 (12.4) | 10220 (18.3) |  |
Charlson-Deyo score |  |  | < 0.0001 |
 0 | 33237 (57.7) | 35177 (62.9) |  |
 1–2 | 24365 (42.3) | 20751 (37.1) |  |
Median income |  |  | < 0.0001 |
 ≥$48,000 | 26397 (45.8) | 28604 (51.1) |  |
 <$48,000 | 31205 (54.2) | 27324 (48.9) |  |
Primary payor |  |  | < 0.0001 |
 Private | 5562 (9.7) | 25033 (44.8) |  |
 Non-private | 52040 (90.3) | 30895 (55.2) |  |
County Location |  |  | < 0.0001 |
 Metropolitan | 47064 (81.7) | 44545 (79.7) |  |
 Non-metropolitan | 10538 (18.3) | 11383 (20.3) |  |
Distance to closest facility, mean (SD), miles | 20.2 (78.4) | 23.0 (81.0) | < 0.0001 |
Facility type |  |  | < 0.0001 |
 Academic | 14682 (25.5) | 16929 (30.3) |  |
 Non-academic | 42920 (74.5) | 38999 (69.7) |  |
Clinical stage group |  |  | < 0.0001 |
 IIIA | 31973 (55.5) | 27974 (50.0) |  |
 IIIB | 25629 (44.5) | 27954 (50.0) |  |