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. Author manuscript; available in PMC: 2012 May 3.
Published in final edited form as: Ann Surg Oncol. 2011 Dec 21;19(5):1439–1445. doi: 10.1245/s10434-011-2173-6

TABLE 1.

Patient and tumor characteristics of small and large intestine adenocarcinomas

Patient
Characteristics		 SBA
Stage I N=468		 LBA
Stage I
N=51,221		 SBA
Stage II
N=1,360		 LBA
Stage II
N=87,085		 SBA
Stage III
N=1,238		 LBA
Stage III
N=71,726		 SBA
Stage IV
N=1,452		 LBA
Stage IV
N=51,489
N % N % N % N % N % N % N % N %
Age P <.01 P <.01 P <.01 P <.01
<50 years 51 11 2,667 5 199 15 5,491 6 201 16 6,418 9 181 12 5,537 11
50–75 years 245 52 27,534 54 757 56 41,808 48 700 57 38,001 53 843 58 29,023 56
>75 years 172 37 21,020 41 404 30 39,786 46 337 27 27,307 38 428 29 16,929 33
Year of diagnosis P =0.01 P <.01 P =0.01 P <.01
1988–1992 46 10 6,288 12 151 11 13,328 15 132 11 9,498 13 170 12 7,417 14
1993–1997 64 14 8,157 16 223 16 16,719 19 217 18 13,088 18 235 16 9,529 19
1998–2002 135 29 16,148 32 412 30 27,182 31 384 31 22,571 31 437 30 15,360 30
2003–2007 223 48 20,628 40 574 42 29,856 34 505 41 26,569 37 610 42 19,183 37
Gender P =0.16 P <.01 P <.01 P <.01
Male 249 53 25,616 50 697 51 41,378 48 676 55 34,293 48 796 55 25,930 50
Female 219 47 25,605 50 663 49 45,707 52 562 45 37,433 52 656 45 25,559 50
Race P <.01 P <.01 P <.01 P <.01
White 359 77 43,390 85 1,062 78 73,459 84 994 80 58,309 81 1,107 76 41,101 80
Black 77 16 4,383 9 215 16 7,600 9 168 14 7,390 10 253 17 6,767 13
Other 32 7 3,448 7 83 6 6,026 7 76 6 6,027 8 92 6 3,621 7
Tumor Grade P <.01 P <.01 P <.01 P <.01
Well-Moderate 280 60 42,406 83 887 65 68,923 79 635 51 49,129 68 590 41 29,212 57
Poor 86 18 4,267 8 382 28 15,289 18 508 41 20,159 28 514 35 14,484 28
Unknown 102 22 4,548 9 91 7 2,873 3 95 8 2,438 3 348 24 7,793 15
Site
Duodenum 320 68 591 43 691 56 773 53
Jejunum 52 11 316 23 242 20 256 18
Ileum 67 14 234 17 184 15 170 12
Small bowel NOS 29 6 219 16 121 10 253 17
Total LN assessed P <.01 P <.01 P <.01
Median (IQR) 0 (0–6) 9 (5–15) 4 (0–10) 12 (7–18) 8 (3–13) 12 (8–18)
Positive LN - - P <.01
Median (IQR) 0 0 0 0 2(1–4) 2(1–4)

Abbreviations: SBA, small bowel adenocarcinoma; LBA, large bowel adenocarcinoma; NOS, not otherwise specified; LN, lymph node; IQR, interquartile range.