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Table 3 Genotypic distribution frequencies of codon 392 in exon 7 of estrogen receptor-β gene and major risk factors in study population: breast cancers, versus control groups

From: Estrogen Receptor-Beta Gene Polymorphism in women with Breast Cancer at the Imam Khomeini Hospital Complex, Iran

Characteristic Group 00a % 01b % 11c % Test result
Age at menarche(years)      
</= 12 Case 83.3 15.0 1.7 χ2 = 1.887
P = 0.169
  control 100 - -  
  total 89.6 9.4 1.0  
> 12 Case 94.4 4.4 1.1 χ2 = 2.229
P = 0.135
  control 100 - -  
  total 97.5 2.0 0.5  
Race      
Arab & Armani Case 100 - - -
  control - - -  
  total 100 - -  
Fars Case 90.0 10.0 - χ2 = 9.11
P = 0.003
  control 100 - -  
  total 95.9 4.1 -  
Lor & Kurdish Case 83.3 11.1 5.6 χ2 = 0.697
P = 0.404
  control 100 - -  
  total 88.9 7.4 3.7  
Turkish Case 93.5 4.3 2.2 χ2 = 1.17
P = 0.279
  control 100 - -  
  total 96.5 2.4 1.1  
Gilaki & Mazani Case 87.0 13.0 - χ2 = 1.527
P = 0.217
  control 100 - -  
  total 91.2 8.8 -  
ABO blood Groups      
A Case 88.9 11.1 - χ2 = 4.920
P = 0.027
  control 100 - -  
  total 95.7 4.3 -  
B Case 85.7 14.3 - χ2 = 5.106
P = 0.024
  control 100 - -  
  total 95.9 4.1 -  
AB Case 100 - - -
  control 100 - -  
  total 100 - -  
O Case 90.3 7.8 1.9 χ2 = 1.884
P = 0.17
  control 100 - -  
  total 93.6 5.1 1.3  
  1. a Genotype normal or 329CC, CTC/CTC, b Genotype heterozygote or 329CG, CTC/CTG, Genotype homozygote or 329GG, CTG/CTG