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Table 2 Analysis of lymph node harvest between patients of the open and laparoscopic groups

From: Survival after laparoscopic and open surgery for colon cancer: a comparative, single-institution study

  Open resection (n =233) Laparoscopic resection(n = 227) P
Harvested lymph nodes (total) 14.2 ± 0.5 20.0 ± 0.7 <0.01§
Stage I 11.8 ± 1.0 18.1 ± 1.5 0.01§
Stage II 14.4 ± 0.7 21.8 ± 1.1 <0.01§
Stage III 14.9 ± 0.9 19.8 ± 1.0 <0.01§
Involved lymph nodes 3.9 ± 0.3 3.3 ± 0.8 0.6§
  1. §Mann-Whitney test.