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. Author manuscript; available in PMC: 2017 Oct 1.
Published in final edited form as: J Gastrointest Surg. 2016 Jul 25;20(10):1699–1706. doi: 10.1007/s11605-016-3208-x

Table 2.

Recurrent versus non-recurrent patients

Recurrent Non-recurrent p value
Gender
  Male 10 10 0.7739
  Female 3 7 0.7110
  Total 13 17 0.4404
Stage, n (%)
  IA 1 (3.33) 0 (0) 0.3182
  IB 0 (0) 1 (3.33) 0.3182
  IIA 0 (13.34) 4 (13.34) 0.1445
  IIB 12 (50) 12 (50) 0.7843
Age (years)
  Range 47.9–84.5 50.4 – 82.6 0.8220
  Median 61.6 64.6
Adjuvant therapy (yes), n (%) 12 (92.3) 13 (76.5) 0.7899
Tumor size (cm)
  Range 1.8–5.2 1.4–5.5 0.6021
  Mean 3.1 3.35
R0 resection (yes), n (%) 12 (92.31) 16 (94.12) 1.0000
Perineural invasion (yes), n (%) 2 (15.38) 2 (11.76) 1.0000
Lymphovascular invasion (yes), n (%) 9 (69.23) 10 (58.82) 0.7080
Lymph node status
  No. of positive 6 3.18
  No. of examined 22.38 21.08
  % positive (mean) 28.36 13.44 0.0247

Comparison of recurrent with non-recurrent patients shows that there are no differences in gender, age, or tumor stage between these groups, and that a similar number of patients in each group received adjuvant radiochemotherapy. No differences were detected in tumor size, perineural or lymphovascular invasion, or R0 resection, but there is a statistically significant difference in the number of positive lymph nodes in the recurrent versus non-recurrent group