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Table 3 Comparison of the Distribution of S and Z Alleles in the INTDP cohort and the Biobank cohort

From: The prevalence of alpha-1 antitrypsin deficiency in Ireland

Phenotype

INTDP

Biobank

Total

S versus other

   

S alleles

311

119

430

Other (including Z)

5689

2081

7770

Total alleles

6000

2200

8200

Z versus other (p < 0.001)

   

Z alleles

563

48

611

Other (including S)

5437

2152

7589

Total alleles

6000

2200

8200

Z versus S (p < 0.001)

   

Z alleles

563

48

611

S alleles

311

119

430

Total alleles

874

167

1041

  1. Data analysed by chi-square test with Yates correction.