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Table 4 The correlation between clinicopathological factors and transversal and 2 stations lymph node metastasis

From: A novel insight of sentinel lymph node concept based on 1-3 positive nodes in patients with pT1-2 gastric cancer

   transversal metastasis 2 station positive nodes
factors   - (%) + (%) x2 pvalue - (%) + (%) x2 pvalue
sex male 88 (58.3) 63 (41.7) 1.878 0.171 182 (81.3) 42 (18.7) 0.003 0.958
  female 20 (46.5) 23 (53.5)    53 (81.5) 12 (18.5)   
age (year) mean ± sd 58.4 ± 9.8 58.3 ± 11.5 0.005 0.942* 58.6 ± 10.2 59.5 ± 11.2 0.204 0.652*
tumor size(cm) mean ± sd 3.6 ± 1.1 3.5 ± 1.3 0.195 0.659* 3.9 ± 1.2 4.0 ± 1.0 0.581 0.446*
lymphadenec-tomy D2 81 (54.4) 68 (45.6) 0.445 0.505 168 (79.2) 44 (20.8) 2.243 0.134
  more than D2 27 (60.0) 18 (40.0)    67 (87.0) 10 (13.0)   
  L 75 (52.4) 68 (47.6)    173 (83.6) 34 (16.4)   
tumor site M 12 (75.0) 4 (25.0) 3.29 0.193 21 (75.0) 7 (25.0) 2.463 0.292
  U 21 (60.0) 14 (40.0)    41 (75.9) 13 (24.1)   
depth of tumor invasion T1 14 (58.3) 10 (41.7)    26 (92.9) 2 (7.1)   
  T2a 31 (49.2) 32 (50.8) 1.582 0.453 76 (82.6) 16 (17.4) 3.318 0.19
  T2b 63 (58.9) 44 (41.1)    133 (78.7) 36 (21.3)   
differentiation well/moderately 47 (54.0) 40 (46.0) 0.173 0.677 102 (79.1) 27 (20.9) 0.773 0.379
  poorly 61 (57.0) 46 (43.0)    133 (83.1) 27 (16.9)   
macroscopic type Borr. 1/2 22 (64.7) 12 (35.3) 1.523 0.217 47 (87.0) 7 (13.0) 2.068 0.15
  Borr. 3/4 72 (52.9) 64 (47.1)    162 (78.3) 45 (21.7)   
lauren type intestenal 41 (55.4) 33 (44.6)    85 (76.6) 26 (23.4)   
  diffused 64 (56.1) 50 (43.9) 0.09 0.956 142 (83.5) 28 (16.5) 4.027 0.134
  mixed 3 (50.0) 3 (50.0)    8 (100.0) 0 (0.0)   
lymphatic/venous invasion - 89 (55.3) 72 (44.7) 0.059 0.809 196 (80.7) 47 (19.3) 0.433 0.511
  + 19 (57.6) 14 (42.4)    39 (84.8) 7 (15.2)   
  1. note: * the difference was tested by unpaired t test