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Table 2 Correspondence between preoperative and postoperative results regarding existence of ulcer, gross type, and histology

From: Difficulty of predicting the presence of lymph node metastases in patients with clinical early stage gastric cancer: a case control study

  Postoperative p-value*
Preoperative Ulcer Negative Positive  
Negative 758 218 <0.001
Positive 39 27  
Gross type I IIa IIb IIc III AGC  
I 10 3 4 6 1 5 <0.001
IIa 4 16 47 175 15 21  
IIb 1 5 79 121 4 14  
IIc 2 9 46 324 21 26  
III 1 2 8 41 21 11  
AGC 0 0 0 0 0 0  
Histology Pap WD MD PD Muc Sig CLS  
Pap 0 0 0 0 0 1 0 <0.001
WD 0 92 62 8 0 3 0  
MD 0 30 161 58 0 7 4  
PD 0 3 34 141 1 65 8  
Muc 0 0 0 0 0 0 0  
Sig 1 0 7 66 1 288 1  
CLS 0 0 0 0 0 0 0  
  1. *p-values were obtained using McNemar analysis
  2. AGC advanced gastric cancer, Pap papillary adenocarcinoma, WD well differentiated adenocarcinoma, MD moderately differentiated adenocarcinoma, PD poorly differentiated adenocarcinoma, Muc mucinous adenocarcinoma, Sig signet ring cell carcinoma, CLS carcinoma with lymphoid stroma