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Table 6 Lymph nodes retrieved with LR and RR in hospitals performing both techniques

From: Lower conversion rate with robotic assisted rectal resections compared with conventional laparoscopy; a national cohort study

Center number n total n RR RR LR p value
Mean n. lymphnodes (Std.dev) Mean n. lymphnodes (Std.dev)
1 158 6 26.5 (12.5) 21.1 (11.1) 0.339
2 118 60 13.7 (5.8) 15.1 (4.8) 0.148
3 75 58 15.2 (5.8) 16.1 (5.9) 0.564
4 123 4 20.8 (3.3) 15.7 (7.7) 0.044
5 32 19 20.7 (7.8) 26.6 (13.5) 0.174
6 64 34 15.9 (5.9) 16.9 (4.8) 0.482
7 269 194 12.6 (4.9) 13.0 (5.2) 0.562
  1. Significant values (p < 0.05) are marked in bold
  2. RR robotic resection, LR laparoscopic resection