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Table 1 The correlation of Piwil1 expression with clinicopathological features in endometrial cancer

From: Stem cell protein Piwil1 endowed endometrial cancer cells with stem-like properties via inducing epithelial-mesenchymal transition

  Cases (n) Piwil1 IS
Mean ± SD P value
Age
 ≤55 34 4.9 ± 1.1  
 >55 49 4.9 ± 1.0 0.9
FIGO stage
 I – II 78 4.9 ± 1.0  
 III - IV 5 6.4 ± 0.9 0.005
Histological grade
 G1 - G2 73 4.9 ± 1.1  
 G3 10 5.5 ± 0.8 0.11
Lymphovascular space involvement
 No 68 4.8 ± 1.0  
 Yes 15 5.9 ± 0.8 0.00
Lymph node metastasis
 No 79 4.9 ± 1.1  
 Yes 4 6.3 ± 1.0 0.03
Myometrial invasion
 ≤1/2 70 4.9 ± 1.0  
 >1/2 13 5.7 ± 1.2 0.02
  1. Significance of difference (P value) between categories was analyzed by Mann–Whitney U test. P < 0.05 for the significance of difference