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Table 2 Characteristics of patients with breast cancer and healthy controls

From: Association of interleukin-10 gene polymorphisms with breast cancer in a Chinese population

Variable Patients, no. (%) Controls, no. (%) P- value
  n = 315 n = 322  
Age(year)    0.979
   < 48 165 (52.4) 169 (52.5)  
   ≥48 150 (47.6) 153 (47.5)  
Menopausal status    0.593
   Premenopausal 144 (45.7) 154 (47.8)  
   Postmenopausal 171 (54.3) 168 (52.2)  
Tumor size (cm)    
   < 2 104 (33.0)   
   2~5 167 (53.0)   
   ≥5 44 (14.0)   
LN involvement    
   Positive 117 (37.1)   
   Negative 198 (62.9)   
ER expression    
   Positive 169 (53.7)   
   Negative 146 (46.3)   
PR expression    
   Positive 166 (52.7)   
   Negative 149 (47.3)