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Table 1 Clinicopathological characteristics of patients according to preoperative radiation therapy

From: Lymph node retrieval in abdominoperineal surgical specimen is radiation time-dependent

  CRT NO CRT p
Age (median, range) 61.5 (25–82) 67.5 (28–89) 0.33
Male gender (%) 61.5 58 0.84
Indication for APR    0.001
Anal cancer 10 2  
Rectal cancer 42 48  
LN retrieved 8.0 ± 5.5 10.5 ± 6.1 0.02
Cases with positive LN (%) 44.2 44 1.00
Pathological staging    
0 6 -  
I 11 19  
II 10 10  
III 25 21  
  1. * Student t test, Mann-Whitney U test or Fisher's exact test, when indicated