Table 2.
Association between clinicopathologic characteristics and hospital surgical volume for patients with stage II/III rectal cancers who underwent resection.
| Characteristics | Surgical Volume | p-value | ||
|---|---|---|---|---|
|
Low
N=55 (%) |
Medium
N=84 (%) |
High
N=261 (%) |
||
| Total | ||||
| Age >65 years old | 27 (49.1) | 26 (31.0) | 73 (28.0) | 0.009 |
| Female Sex | 24 (43.6) | 28 (33.3) | 97 (37.2) | 0.47 |
| Non-white Race | * | * | 11 (4.2) | 0.346 |
| Married | 39 (70.9) | 52 (61.9) | 176 (67.4) | 0.504 |
| Public Insurance | 33 (60.0) | 47 (56.0) | 122 (46.7) | 0.108 |
| Rurality | 0.017 | |||
| Small rural | 29 (52.7) | 29 (34.5) | 92 (35.3) | |
| Large rural | 11 (20.0) | 9 (10.7) | 37 (14.2) | |
| Urban | 15 (27.3) | 46 (54.8) | 132 (50.6) | |
| Income | 0.001 | |||
| $35000-50000 | 26 (48.2) | 19 (22.6) | 68 (26.2) | |
| $50001-75000 | 27 (50.0) | 58 (69.1) | 152 (58.5) | |
| >$75000 | * | 7 (8.3) | 40 (15.4) | |
| Bachelor’s Degree | 0.004 | |||
| <1st quartile | 15 (27.3) | 18 (21.4) | 62 (23.9) | |
| 1st-3rd quartile | 37 (62.3) | 46 (54.8) | 120 (46.2) | |
| >3rd quartile | 3 (5.5) | 20 (23.8) | 78 (30.0) | |
| Nodal Stage | 0.113 | |||
| N0 | 22 (40.0) | 19 (22.6) | 86 (33.0) | |
| N1 | 27 (49.1) | 47 (56.0) | 141 (54.0) | |
| N2 | 6 (10.9) | 18 (21.4) | 34 (13.0) | |
| Overall Stage | 0.077 | |||
| II | 22 (40.0) | 19 (22.6) | 86 (33.0) | |
| III | 33 (60.0) | 65 (77.4) | 175 (67.1) | |
| Surgery Group | 0.175 | |||
| Abdominoperineal resection | 11 (20.0) | 29 (34.5) | 80 (30.7) | |
| Low anterior resection | 44 (80.0) | 55 (65.5) | 181 (69.3) | |
| Nodal Yield ≥12 | 34 (61.8) | 70 (83.3) | 216 (82.8) | 0.001 |
| Tumor Location | 0.491 | |||
| Low | 16 (29.6) | 35 (42.7) | 102 (39.1) | |
| Mid | 22 (40.7) | 32 (39.0) | 100 (38.3) | |
| High | 16 (29.6) | 15 (18.3) | 59 (22.6) | |
| Preoperative chemoradiation | 36 (65.5) | 57 (67.9) | 192 (73.6) | 0.358 |
Bold p-values meet statistical significance (p < .05). Variables with cell counts below 5 were omitted and replaced with a “*” per Iowa Cancer Registry privacy policies.