Table 1. Baseline Characteristics Among Treatment Groups Before Propensity Score Matching.
| Characteristics | No. (%) | P value | ||
|---|---|---|---|---|
| Neoadjuvant | Surgery alone | Adjuvant | ||
| No. (%) | 101 (1.6) | 3145 (49.2) | 3145 (49.2) | |
| Age, median (IQR), y | 59 (52-66) | 72 (63-81) | 65 (57-72) | <.001 |
| Sex | ||||
| Male | 32 (1.7) | 900 (49.1) | 900 (49.1) | .80 |
| Female | 69 (1.5) | 2245 (49.2) | 2245 (49.2) | |
| Race and ethnicitya | ||||
| Hispanic | >12 (>1.6) | 406 (53.3) | 343 (45.0) | .06 |
| Non-Hispanic | ||||
| Black | <11 (<1.3) | 392 (46.4) | 442 (52.4) | |
| White | 66 (1.6) | 2024 (49.4) | 2004 (48.9) | |
| Insurance status | <.001 | |||
| Uninsured | <11 (<4.8) | 112 (48.9) | 116 (50.7) | |
| Private | 65 (3.1) | 790 (38.1) | 1220 (58.8) | |
| Medicaid | 11 (2.0) | 247 (45.6) | 284 (52.4) | |
| Medicare | >13 (>0.1) | 1925 (56.9) | 1438 (42.5) | |
| Income, $ | ||||
| <40 227 | 18 (1.4) | 675 (53.2) | 576 (45.4) | .02 |
| 40 227-50 353 | 15 (1.1) | 696 (49.7) | 688 (49.2) | |
| 50 354-63 332 | 26 (1.7) | 727 (47.6) | 774 (50.7) | |
| ≥63 333 | 40 (1.9) | 1001 (47.6) | 1060 (50.5) | |
| Charlson Comorbidity Index score | ||||
| 0 | 77 (1.8) | 2033 (46.3) | 2284 (52.0) | <.001 |
| 1 | >13 (>1.0) | 786 (53.4) | 664 (45.1) | |
| ≥2 | <11 (<2.1) | 326 (62.0) | 197 (37.5) | |
| Facility type | ||||
| Academic | 61 (2.4) | 1181 (46.3) | 1310 (51.3) | <.001 |
| Nonacademic | 38 (1.0) | 1924 (51.6) | 1767 (47.4) | |
| Nodal status | ||||
| Negative | 28 (1.7) | 925 (55.2) | 722 (43.1) | <.001 |
| Positive | 53 (2.2) | 912 (37.3) | 1482 (60.6) | |
| No nodes examined | 18 (0.8) | 1294 (57.8) | 928 (41.4) | |
| Margin | ||||
| R0 | 75 (1.9) | 2088 (52.2) | 1836 (45.9) | .13 |
| R1 | <11 (<1.1) | 418 (43.5) | 532 (55.4) | |
| R2 | <11 (<7.4) | 61 (40.9) | 87 (58.4) | |
| Stage | ||||
| II | 31 (1.0) | 1850 (61.8) | 1111 (37.1) | <.001 |
| III | 51 (2.2) | 939 (41.0) | 1298 (56.7) | |
| IV | 19 (1.7) | 356 (32.0) | 736 (66.2) | |
| Overall survival, median (95% CI) | 27.0 (20.5-33.6) | 17.6 (12.4-22.8) | 22.3 ()19.4-25.3 | .13 |
a
Race and ethnicity data were self-reported; for this study, terms were classified for reporting convenience.