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Table 1 Correlation between HSPA2 expression and clinicopathologic features of ESCC patients (n = 120)

From: Overexpression of HSPA2 is correlated with poor prognosis in esophageal squamous cell carcinoma

Parameters Cases HSPA2 expression (n) χ2 P value
   Positive Negative   
Tissues      
  Cancer 120 90 30 21.343 0.000
  Adjacent 120 55 65   
Age (years)      
  ≤60 81 64 17 2.140 0.144
  >60 39 26 13   
Gender      
  Male 90 69 21 0.533 0.465
  Female 30 21 9   
Drinking      
  Yes 75 59 16 1.434 0.231
  No 45 31 14   
Tumor site     
  Upper 35 26 9 0.017 0.992
  Middle 40 30 10   
  Lower 45 34 11   
Grade      
  G1 63 49 14 0.672 0.715
  G2 30 21 9   
  G3 + G4 27 20 7   
Primary tumor     
  T1 30 18 12 9.340 0.025a
  T2 31 21 10   
  T3 42 35 7   
  T4 17 16 1   
TNM stage    
  I 28 14 14 14.991 0.001a
  II 49 37 12   
  III 43 39 4   
Lymph node metastases     
  N0 76 51 25 6.890 0.009a
  N+ 44 39 5   
Recurrenceb      
  Yes 85 70 15 8.497 0.004a
  No 32 18 14   
  1. aP values considered statistically significant at <0.05; bthree patients lost to follow-up because of telephone number changes or home moving. ESCC, esophageal squamous cell carcinoma; G, grade; N, lymph node metastases; T, primary tumor. Drinking alcohol is defined as average amount of drinking alcohol is 50 grams or more per day, and period of drinking continues to 1 year or more. Drinking alcohol parameter: amount of drinking/day × years of drinking.