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Table 1 Relationship between miRNA-21 expression and tumor clinicopathologic features

From: Overexpression of miRNA-21 promotes radiation-resistance of non-small cell lung cancer

Clinicopathologic features Number of cases miRNA-21 expression
Low (n=19) High (n=41) P
Age, years     
   ≥60 38 10 28 0.242
   <60 22 9 13
Sex     
   Male 34 12 22 0.490
   Female 26 7 19
Smoking     
   Smoking 33 11 22 0.759
   No smoking 27 8 19
Lymph node metastasis     
   N0 29 15 14 0.005
   N1 31 4 27
Stage     
   I + II 29 14 15 0.007
   III +IV 31 5 26
Grade     
   G1+ G2 32 10 22 0.941
   G3 28 9 19