Table 1.
Patient characteristics in the chemoradiation and radiation therapy alone cohorts.
| Characteristic | Chemoradiation (N = 3552), Number (%) |
Radiation Therapy Alone (N = 287), Number (%) | p-Value |
|---|---|---|---|
| Age (years) | <0.001 | ||
| <50 | 642 (18.1) | 59 (20.6) | |
| 50–59 | 1196 (33.7) | 68 (23.7) | |
| 60–69 | 1013 (28.5) | 65 (22.6) | |
| ≥70 | 701 (19.7) | 95 (33.1) | |
| Gender | <0.001 | ||
| Female | 2522 (71.0) | 181 (63.1) | |
| Male | 1030 (29.0) | 106 (36.9) | |
| Race | 0.054 | ||
| White | 3229 (90.9) | 251 (87.5) | |
| Non–white | 323 (9.1) | 36 (12.5) | |
| Charlson–Deyo score | 0.164 | ||
| 0 | 2938 (82.7) | 232 (80.8) | |
| 1 2–3 |
403 (11.4) 211 (5.9) |
30 (10.5) 25 (8.7) |
|
| Median income | 0.145 | ||
| ≥$46,000 | 1405 (39.6) | 101 (35.2) | |
| <$46,000 | 2147 (60.4) | 186 (64.8) | |
| Insurance Status | 0.775 | ||
| Insured | 3451 (97.2) | 278 (96.9) | |
| Uninsured | 101 (2.8) | 9 (3.1) | |
| Distance to facility, mi. | 23.5 (SD = 102.3) | 19.8 (SD = 38.5) | 0.550 |
| Facility type | 0.459 | ||
| Academic | 1004 (28.3) | 87 (30.3) | |
| Non–academic | 2548 (71.7) | 200 (69.7) | |
| Tumor Size | 0.009 | ||
| ≤1 cm | 821 (23.1) | 77 (26.8) | |
| >1–2 cm | 1914 (53.9) | 128 (44.6) | |
| Unknown size | 817 (23.0) | 82 (28.6) |
mi.: miles. SD: standard deviation.