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Table 2 Distribution of lymph node metastases by tumor location

From: Clinical analysis of metastatic characteristics of infrapyloric lymph nodes (No.206) and terminal ileum lymph nodes in patients with right colon cancer

Tumor location Total metastasis rate (% ) Metastasis rate (%) in paracolic area Metastasis rate (%) in intermediate area   Metastasis rate (%) in main area
No.202 No.212 No.222 χ2 p value No.202 No.212 No.222 χ2 p value
Ileocecal group 46.7% 43.5% 12.0% 2.2% 0 16.629 0.000 6.5% 2.2% 0 7.209 0.027
(43/92) (40/92) (11/92) (2/92) (0/92) (6/92) (2/92) (0/92)
Ascending colon group 43.7% 40% 6.7% 3.0% 4.4% 0.415 0.375 2.2% 4.4% 3.0% 0.415 0.375
(59/135) (54/135) (9/135) (4/135) (6/135) (3/135) (6/135) (4/135)
Hepatic flexure group 39.2% 33.3% 0 4.4% 6.7% 0.635 0.298 0 6.7% 5.9% 0.063 0.500
(53/135) (45/135) (0/136) (6/135) (9/135) (0/135) (9/135) (8/135)
χ2 1.319 2.614 15.622 0.963 6.171 / / 9.661 2.498 6.078 / /
P value 0.517 0.271 0.000 0.618 0.046 / / 0.008 0.287 0.048 / /