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. 2020 Jun 18;11(4):633–641. doi: 10.1007/s13193-020-01105-7

Table 5.

Comparison of surgical outcomes in chronological groups

Parameter assessed Group 01 Group 02 Group 03 Group 04 P value
Numbers 49 48 46 31
Mean blood loss (ml) 276 257 158 291 0.173
Mean nodal yield (n) 14.7 13.8 12.7 13.6 0.799
CRM positivity (n) 2 5 2 0 0.290
DRM positivity (n) 0` 0 1 0 0.466
Anastomotic leak (n) 1 2 0 3 0.109
Morbidity
  Grade I 2 9 5 4 0.313
  Grade II 4 0 3 1
  Grade IIIa 0 0 1 1
  Grade IIIb 2 1 3 1
  Grade IVa 0 1 0 2
  Grade IVb 1 0 0 0
  Grade V 1 0 0 0
  Grade 0 39 37 34 22

CRM circumferential resection margin, DRM distal resection margin