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Table 2 Correlation of STAT3 protein expression to clinical pathology of patients

From: STAT3 expression correlates with prognosis of thymic epithelial tumors

Feature N STAT3 protein expression Positive rate χ 2 P value
Positive Negative
Age(year)      1.359 >0.05
<60 59 25 34 42.37%   
≥60 21 9 12 42.86%   
Gender      0.000 >0.05
Male 47 20 27 42.55%   
Female 33 14 19 42.42%   
WHO histologic subtype      13.742 <0.05
A 5 0 5 0   
AB 16 4 12 25.00%   
B1 10 4 6 40.00%   
B2 17 8 9 44.44%   
B3 10 4 6 40.00%   
C 22 16 6 72.73%   
Masaoka      8.623 <0.05
stage 33 12 21 36.36%   
Stage I 14 4 10 25.57%   
Stage II 29 16 13 55.17%   
Stage III 4 4 0 100%   
Stage IV       
Tumor size, d/cm      0.235 >0.05
≤5 cm 18 9 9 50.00%   
>5 cm 62 27 35 43.55%   
  1. Statistics showed STAT3 correlated significantly to both WHO classification (χ 2 = 13.742, P < 0.05) and Masaoka staging (χ 2 = 8.623, P < 0.05), but not to age, gender and tumor mass.