Table 1.
Patient characteristics stratified by ADI
| Characteristics | ALL | Low ADI | High ADI | P value |
|---|---|---|---|---|
| (N=266,620) | (N=138,901) | (N=127,719) | ||
| Age (year) | <0.001 | |||
| <65 | 137190 (51.5) | 69477 (50.0) | 67713 (53.0) | |
| ≥65 | 129430 (48.5) | 69424 (50.0) | 60006 (47.0) | |
| Sex | <0.001 | |||
| Female | 127069 (47.7) | 67072 (48.3) | 59997 (47.0) | |
| Male | 139551 (52.3) | 71829 (51.7) | 67722 (53.0) | |
| Race | <0.001 | |||
| Black | 31090 (11.7) | 10266 (7.39) | 20824 (16.3) | |
| White | 212971 (79.9) | 113511 (81.7) | 99460 (77.9) | |
| Others | 22559 (8.46) | 15124 (10.9) | 7435 (5.8) | |
| Marital status | <0.001 | |||
| Married | 147025 (55.1) | 78333 (56.4) | 68692 (53.8) | |
| Unmarried or unpartnered | 119595 (44.9) | 60568 (43.6) | 59027 (46.2) | |
| Insurance status | <0.001 | |||
| Insured | 225377 (84.5) | 122380 (88.1) | 102997 (80.6) | |
| Medicaid | 32858 (12.3) | 13310 (9.6) | 19548 (15.3) | |
| Uninsured | 8385 (3.1) | 3211 (2.3) | 5174 (4.1) | |
| Previous malignancies | <0.001 | |||
| No | 216622 (81.2) | 112175 (80.8) | 104447 (81.8) | |
| Yes | 49998 (18.8) | 26726 (19.2) | 23272 (18.2) | |
| Histology | 0.237 | |||
| Adenocarcinoma | 236285 (88.6) | 123000 (88.6) | 113285 (88.7) | |
| Others | 30335 (11.4) | 15901 (11.4) | 14434 (11.3) | |
| AJCC stage | 0.404 | |||
| I-II | 134862 (50.6) | 70151 (50.5) | 64711 (50.7) | |
| III-IV | 131758 (49.4) | 68750 (49.5) | 63008 (49.3) | |
| Receipt of treatment | <0.001 | |||
| Yes | 249041 (93.4) | 130216 (93.7) | 118825 (93.0) | |
| No | 17579 (6.6) | 8685 (6.3) | 8894 (7.0) | |
| Surgery | <0.001 | |||
| Yes | 227363 (85.3%) | 118789 (85.5%) | 108574 (85.0%) | |
| No/unknown | 39257 (14.7%) | 20112 (14.5%) | 19145 (15.0%) | |
| Radiation | 0.256 | |||
| Yes | 38377 (14.4%) | 19890 (14.3%) | 18487 (14.5%) | |
| No/unknown | 228243 (85.6%) | 119011 (85.7%) | 109232 (85.5%) | |
| Chemotherapy | 0.008 | |||
| Yes | 107081 (40.2%) | 56121 (40.4%) | 50960 (39.9%) | |
| No/Unknown | 159539 (59.8%) | 82780 (59.6%) | 76759 (60.1%) |
Abbreviation: ADI, Area Deprivation Index; AJCC, American joint Committee on cancer.