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Table 5 Subgroup analysis of T1 tumor according to Slug expression

From: Evaluation of Slug expression is useful for predicting lymph node metastasis and survival in patients with gastric cancer

  Total Slug expression P
  Negative (n = 13) Positive (n = 107)
Tumor depth
 T1a 56 6 (46.2%) 50 (46.7%) 0.969
 T1b 64 7 (53.8%) 57 (53.5%)  
Tumor size 3.0 ± 1.9 2.7 ± 2.0 3.0 ± 1.9 0.670
Histology
 Adenocarcinoma, WD 25 0 (0.0%) 25 (23.4%) 0.001a
 Adenocarcinoma, MD 37 3 (23.1%) 34 (31.8%)  
 Adenocarcinoma, PD 31 2 (15.4%) 29 (27.1%)  
 Signet ring cell cancer 27 8 (61.5%) 19 (17.8%)  
Lymph node metastasis
 Negative 103 13 (100%) 90 (84.1%) 0.210b
 Positive 17 0 (0.0%) 17 (15.9%)  
  1. WD well differentiated, MD moderately differentiated, PD poorly differentiated
  2. aLinear-by-linear association
  3. bFisher’s exact test