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. 2016 Jul 15;6:29765. doi: 10.1038/srep29765

Table 1. Distribution of stage, histological type, and median age at diagnosis (years) by anatomical site, and sex in 49,096 patients with colon or rectal cancer.

  Men
Women
N % Age N % Age
Proximal colon
All 7969 31% 73 9754 42% 76
Stage
I 867 11% 74 1034 11% 77
II 2451 31% 75 3050 31% 77
III 2076 26% 73 2691 28% 76
IV 1366 17% 70 1533 16% 73
Unknown 1209 15% 74 1446 15% 77
Histology
AD* 7123 89% 73 8543 88% 76
SR/MC** 846 11% 73 1211 12% 77
Distal colon
All 7367 29% 71 6195 27% 72
Stage
I 1069 15% 72 968 16% 73
II 1908 26% 73 1571 25% 74
III 1769 24% 70 1456 24% 70
IV 1358 18% 69 1076 17% 68
Unknown 1263 17% 73 1124 18% 74
Histology
AD 6911 94% 71 5733 93% 72
SR/MC 456 6% 69 462 7% 72
Rectum
All 10477 41% 70 7334 31% 72
Stage
I 1941 19% 70 1484 20% 71
II 2085 20% 70 1339 18% 72
III 2262 22% 69 1662 23% 70
IV 1720 16% 68 1078 15% 70
Unknown 2469 24% 72 1771 24% 75
Histology
AD 10036 96% 70 7031 96% 72
SR/MC 441 4% 69 303 4% 72
 Total (Row %) 25813 100% 71 23283 100% 74

*AD = Adenocarcinoma. **SR/MC = signet ring/mucinous adenocarcinoma.