Table 2.
Cancer End Points
| Categorical Data Items | Community, No. (%) | Academic, No. (%) | P Valuea |
|---|---|---|---|
| Primary tumor site | <.001b | ||
| Oral cavity | 40 (27.6) | 58 (27.6) | |
| Oropharynx | 30 (20.7) | 71 (33.8) | |
| Hypopharynx/larynx | 49 (33.8) | 31 (14.8) | |
| Sinus/nose | 14 (9.7) | 27 (12.9) | |
| Other | 9 (6.2) | 23 (11.0) | |
| Unknown | 3 (2.1) | 0 | |
| Positive margins | .096 | ||
| Yes | 25 (17.2) | 23 (11.0) | |
| No | 64 (44.1) | 107 (51.0) | |
| Unknown | 56 (38.6) | 80 (38.1) | |
| Nodes with extracapsular spread | .030b | ||
| Yes | 13 (9.0) | 37 (17.6) | |
| No | 68 (46.9) | 87 (41.4) | |
| Unknown | 64 (44.1) | 86 (41.0) | |
| Disease status at last follow-up: | .009b | ||
| Alive, no evidence of disease | 58 (40.0) | 115 (54.8) | |
| Alive with disease or dead | 83 (57.2) | 92 (43.8) | |
| Unknown | 4 (2.8) | 3 (1.4) | |
| Alive at last follow-up | .065 | ||
| Yes | 69 (47.6) | 121 (57.6) | |
| No | 75 (51.7) | 87 (41.4) | |
| Unknown | 1 (0.7) | 2 (1.0) | |
|
| |||
| Ordered or Continuous Data Items | Community, Median (Min/Max) | Academic, Median (Min/Max) | P Valuec |
|
| |||
| T classification | .558 | ||
| 1 | 25 (17.2) | 32 (15.2) | |
| 2 | 31 (21.4) | 54 (25.7) | |
| 3 | 21 (14.5) | 38 (18.1) | |
| 4 | 37 (25.5) | 41 (19.5) | |
| Unknown | 31 (21.4) | 45 (21.4) | |
| N classification | .006b | ||
| 0 | 57 (39.3) | 60 (28.6) | |
| 1 | 22 (15.2) | 24 (11.4) | |
| 2 | 32 (22.1) | 80 (38.1) | |
| 3 | 5 (3.4 ) | 6 (2.9) | |
| Unknown | 29 (20.0) | 40 (19.0) | |
| M Classification (M1) | 2/115 (1.7) | 4/171 (2.3) | 1.000 |
| TNM stage | .024b | ||
| 1 | 15 (10.3) | 13 (6.2) | |
| 2 | 18 (12.4) | 20 (9.5) | |
| 3 | 23 (15.9) | 29 (13.8) | |
| 4 | 58 (40.0) | 108 (51.4) | |
| Unknown | 31 (21.4) | 40 (19.0) | |
a
The P value was derived from the χ2 or the Fisher exact test.
b
Indicates statistical significance with a P <.05.
c
The P value was derived from the Wilcoxon rank sum test.