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Table 1 The characteristics of breast cancer cases and cancer-free controls

From: Association between TIMP-2 gene polymorphism and breast cancer in Han Chinese women

Characteristics Cases Control P value
Number 566 578  
Age (mean ± SD) 50.91 ± 11.23 49.22 ± 10.11 0.017
smoking and drink
 No 328   
 Yes 40   
Age of menarche
 ≤14 145   
 >14 119   
Menopausal status
 Premenopausal 104   
 Postmenopausal 156   
Procreative times
 <1 104   
 ≥1 130   
Tumor size
 <2 cm 105   
 ≥2 cm 154   
Tumor site
 left 256   
 right 241   
Lymph node involvement
 Negative 201   
 Positive 197   
Clinical stage
 III-IV 114   
 I- II 272   
Immunohistochemistry results
 ER (−) 108   
 ER (+) 208   
 PR (−) 145   
 PR (+) 166   
 c-erb(−) 91   
 c-erb(+) 214   
  1. ER Estrogen receptor, PR Progesterone receptor