Table 1.
Patient baseline characteristics (n = 15,627)
| Characteristic | No. (%) |
|---|---|
| Age (yr) | |
| ≤67 | 8,254 (53) |
| >67 | 7,373 (47) |
| Chemotherapy | |
| No | 14,913 (95) |
| Yes | 714 (5) |
| Comorbidity score | |
| 0 | 12,467 (80) |
| 1 | 2,396 (15) |
| ≥2 | 764 (5) |
| Distance from facility (mile) | |
| ≤11.5 | 9,416 (60) |
| >11.5 | 6,211 (40) |
| Facility type | |
| Community cancer center | 1,741 (11) |
| Comprehensive community cancer center | 7,176 (46) |
| Academic/research program | 6,555 (43) |
| Grade | |
| Well differentiated | 2,836 (28) |
| Moderately differentiated | 6,196 (61) |
| Poorly differentiated | 1,172 (11) |
| Education (% without a high school diploma) | |
| ≥29 | 3,542 (23) |
| 20–28.9 | 4,405 (29) |
| 14–19.9 | 4,201 (27) |
| <14 | 3,214 (21) |
| Median income by zip code (US dollar) | |
| <30,000 | 3,432 (22) |
| 30,000–34,999 | 3,779 (25) |
| 35,000–45,999 | 3,607 (24) |
| ≥46,000 | 4,512 (29) |
| Insurance | |
| None | 510 (3) |
| Private | 5,560 (36) |
| Government | 9,249 (61) |
| Location | |
| Metropolitan | 12,323 (81) |
| Urban | 2,559 (17) |
| Rural | 354 (2) |
| Race | |
| Caucasian | 13,414 (86) |
| African American | 1,783 (11) |
| Other | 430 (3) |
| Gender | |
| Male | 13,421 (86) |
| Female | 2,206 (14) |
| Stage | |
| Tis | 1,876 (12) |
| T1 | 10,068 (64) |
| T2 | 3,683 (24) |
| Year group | |
| 2004–2006 | 3,934 (25) |
| 2007–2009 | 3,896 (25) |
| 2010–2012 | 3,899 (25) |
| 2013–2015 | 3,897 (25) |