Table 2

Distribution of exon 5 and exon 6 polymorphism of GSTP1 genotypes in COPD and control groups

Number of individuals (% of group)Odds ratio (95% CI) for homozygotes of wild typeMajor allele frequency
Homozygous wild typeHeterozygoteHomozygous mutant
Exon 5 polymorphism (Ile105Val)
Control group26 (52%)22 (44%)2 (4%)10.74
 COPD group42 (79%)2-150 11 (21%)0 (0%)3.5 (2.7 to 4.6)0.90
Exon 6 polymorphism (Ala114Val)
Control group50 (100%)0 (0%)0 (0%)1.00
 COPD group53 (100%)0 (0%)0 (0%)1.00
  • 2-150 p = 0.009.