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
| 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 |
a Genotype normal or 329CC, CTC/CTC, b Genotype heterozygote or 329CG, CTC/CTG, Genotype homozygote or 329GG, CTG/CTG