Table 1.
Patient, Tumor and Treatment Factors, by Trial Participation
| Factors | Not Enrolled | Enrolled | χ2 p-value |
|---|---|---|---|
|
| |||
| Age | <0.0001 | ||
| 18–64 | 253707 (45.9%) | 1276 (69.1%) | |
| 65+ | 298135 (54.0%) | 570 (30.9%) | |
|
| |||
| Sex | <0.0001 | ||
| Male | 197754 (35.8%) | 494 (26.8%) | |
| Female | 354088 (64.2%) | 1342 (73.24%) | |
|
| |||
| Residence | <0.0001 | ||
| Rural | 87961 (15.9%) | 240 (13%) | |
| Urban | 464151 (84.1%) | 1606 (87%) | |
|
| |||
| Marital Status | <0.0001 | ||
| Single | 74092 (13.4%) | 264 (14.3%) | |
| Married | 301276 (54.5%) | 1171 (63.4%) | |
| Separated/Divorced/Widowed | 147882 (26.9) | 404 (21.9%) | |
| Unknown | 28592 (5.2%) | 7 (0.4%) | |
|
| |||
| Race/ethnicity | <0.0001 | ||
| Non-Hispanic White | 380635 (69.0%) | 1390 (75.3%) | |
| Non-Hispanic Black | 32368 (5.9%) | 79 (4.3%) | |
| Hispanic | 73214 (13.3%) | 218 (11.8%) | |
| Asian/Pacific Islander | 54358 (9.9%) | 152 (8.2%) | |
| Non-Hispanic American Indian | 1726 (0.3%) | 5 (0.3%) | |
| Other/Unknown | 9541 (1.7%) | 2 (0.1%) | |
|
| |||
| Insurance Status | <0.0001 | ||
| Private | 264097 (47.9%) | 1071 (58%) | |
| Underinsured/Other | 274807 (49.8%) | 737 (39.9%) | |
| Uninsured | 8752 (1.6%) | 29 (1.6%) | |
| Military | 4184 (0.8%) | 9 (0.5%) | |
|
| |||
| CoC Hospital | <0.0001 | ||
| Approved | 197172 (35.7%) | 1194 (58.8%) | |
| Not Approved | 348292 (63.1%) | 732 (39.7%) | |
| Unknown | 6378 (1.2%) | 10 (0.5%) | |
|
| |||
| Grade | <0.0001 | ||
| Low | 208143 (37.7%) | 819 (44.4%) | |
| High | 130331 (23.6%) | 514 (28.8%) | |
| Unknown | 213368 (38.7%) | 513 (27.8%) | |
|
| |||
| Stage | <0.0001 | ||
| I | 203508 (36.9%) | 618 (33.5%) | |
| II | 90897 (16.5%) | 504(27.3%) | |
| III | 71205 (12.9%) | 290 (15.7%) | |
| IV | 92985 (16.9%) | 187 (10.1%) | |
| Unknown | 93247 (16.9%) | 247 (13.4%) | |
|
| |||
| Organ Site | <0.0001 | ||
| Lung | 116727 (21.2%) | 167 (9.1%) | |
| Colon | 104482 (18.9%) | 186 (10.1%) | |
| Melanoma | 73544 (13.3%) | 327 (17.7%) | |
| Breast | 188884 (34.2%) | 1031 (55.9%) | |
| Stomach/Esophagus | 26828 (4.9%) | 40 (2.2%) | |
| HPB | 41337 (7.5%) | 85 (5.2%) | |
|
| |||
| Treatment | <0.0001 | ||
| None | 99567 (18.0%) | 30 (1.6%) | |
| Chemo Only | 35073 (6.4%) | 143 (7.6%) | |
| Radiation Only | 15978 (2.9%) | 8 (0.4%) | |
| Surgery Only | 228881 (41.5%) | 461 (25.0%) | |
| Chemo + Radiation | 27392 (5.0%) | 87 (4.7%) | |
| Chemo + Surgery | 50144 (9.1%) | 359 (19.5%) | |
| Radiation + Surgery | 51346 (9.3%) | 295 (16.0%) | |
| Chemo + Surgery + Radiation | 43461 (7.9%) | 463 (25.1%) | |