Table 3.
Treatment Characteristics by Facility Type
| Covariate | Community cancer program, n=9,340 | Comprehensive community cancer program, n=52,097 | Academic/research program, n=31,492 | p Value |
|---|---|---|---|---|
| NCDB analytic stage group | ||||
| 0–1 | 5471 (61.8) | 31029 (64.1) | 17850 (61.3) | < 0.001 |
| II | 1506 (17.0) | 7999 (16.5) | 4632 (15.9) | |
| III | 1425 (16.1) | 7317 (15.1) | 5088 (17.5) | |
| IV | 453 (5.1) | 2042 (4.2) | 1528 (5.3) | |
| Surgical procedure | ||||
| Wedge resection | 1464 (15.7) | 7428 (14.3) | 4585 (14.6) | < 0.001 |
| Segmental resection | 267 (2.9) | 1283 (2.5) | 970 (3.1) | |
| Lobectomy | 6823 (73.1) | 39434 (75.7) | 23347 (74.1) | |
| Pneumonectomy | 786 (8.4) | 3952 (7.6) | 2590 (8.2) | |
| Positive surgical margins | ||||
| No | 8125 (91.0) | 47017 (92.7) | 28816 (93.9) | < 0.001 |
| Yes | 806 (9.0) | 3684 (7.3) | 1883 (6.1) | |
| Scope of regional LN surgery | ||||
| No regional LN surgery | 1315 (14.2) | 5516 (10.6) | 3046 (9.7) | < 0.001 |
| Regional LN surgery | 7934 (85.8) | 46327 (89.4) | 28312 (90.3) | |
| Radiation before surgery | ||||
| No | 8875 (96.5) | 49378 (96.1) | 29503 (94.8) | < 0.001 |
| Yes | 319 (3.5) | 2018 (3.9) | 1616 (5.2) | |
| Regional LN positive | ||||
| No | 6949 (75.2) | 39438 (76.2) | 23269 (74.3) | < 0.001 |
| Yes | 2292 (24.8) | 12317 (23.8) | 8046 (25.7) | |
| Regional LN examined | ||||
| 0–3 | 3256 (39.8) | 15250 (32.8) | 7170 (24.9) | < 0.001 |
| 4–6 | 1768 (21.6) | 10733 (23.1) | 5493 (19.1) | |
| 7–9 | 1250 (15.3) | 8004 (17.2) | 4790 (16.6) | |
| >9 | 1907 (23.3) | 12578 (27.0) | 11358 (39.4) |
LN, lymph node.