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. Author manuscript; available in PMC: 2024 Jul 27.
Published in final edited form as: J Gastrointest Surg. 2023 Mar 22;27(6):1228–1237. doi: 10.1007/s11605-023-05656-2

Table 1.

Association between clinicopathologic characteristics and tumor location in patients with stage II/III rectal cancers who underwent resection.

Characteristics Tumor Location p-value
Low
N=162 (%)
Mid
N=160 (%)
High
N=92 (%)
Total
Age >65 years old 55 (34.0) 44 (27.5) 33 (35.9) 0.300
Female Sex 54 (33.3) 71 (44.4) 31 (33.7) 0.083
Non-white Race 5 (3.1) 5 (3.1) 5 (5.4) 0.574
Married 104 (64.2) 104 (65.0) 68 (73.9) 0.244
Public Insurance 90 (55.6) 76 (47.5) 45 (48.9) 0.318
Rurality 0.421
Small rural 60 (37.0) 68 (42.5) 29 (31.5)
Large rural 24 (14.8) 18 (11.3) 16 (17.4)
Urban 78 (48.2) 74 (46.3) 47 (51.1)
Income 0.366
$35000 to 50000 46 (28.6) 49 (30.8) 22 (24.2)
$50001 to 75000 101 (62.7) 92 (57.9) 54 (59.3)
>$75000 14 (8.7) 18 (11.3) 15 (16.5)
Bachelor’s Degree 0.436
<1st quartile 42 (25.9) 39 (24.4) 19 (20.9)
1st-3rd quartile 75 (46.3) 88 (55.0) 47 (51.7)
>3rd quartile 45 (27.8) 33 (20.6) 25 (27.5)
Nodal stage 0.125
N0 43 (2.6.5) 50 (31.3) 38 (41.3)
N1 90 (55.6) 87 (54.4) 45 (48.9)
N2 29 (17.9) 23 (14.4) 9 (9.8)
Overall Stage 0.052
II 43 (26.5) 50 (31.3) 38 (41.3)
III 119 (73.5) 110 (68.8) 54 (58.7)
Nodal Yield ≥12 127 (78.4) 117 (73.1) 84 (91.3) 0.003
Surgical Volume 0.491
Low 16 (10.5) 22 (14.3) 16 (17.8)
Medium 35 (22.9) 32 (20.8) 15 (16.7)
High 102 (66.7) 100 (64.9) 59 (65.6)
Surgery <.001
Abdominoperineal Resection 100 (64.5) 22 (13.8) *
Low Anterior Resection 62 (35.5) 138 (86.2) 90 (97.8)
National Cancer Institute designated 44 (28.6) 40 (26.0) 16 (17.6) 0.150
Preoperative chemoradiation 129 (79.6) 124 (77.5) 43 (46.7) 0.001

Bolded 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.