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Table 3 Phenotype distribution and allele frequency of Hb S, β-thalassaemia, α-thalassaemia among the unrelated 13 PVTGs of Odisha

From: A community based study on haemoglobinopathies and G6PD deficiency among particularly vulnerable tribal groups in hard-to-reach malaria endemic areas of Odisha, India: implications on malaria control

Genotype

Unrelated PVTG

AA

1062

AS

40

SS

1

HbS (allele frequency)

0.019

AA

1103

Aβ

2

Hbβ (allele frequency)

0.0009

αα/αα

1081

αα/–α

23

–α/–α

1

Hbα (allele frequency)

0.0113

  1. AA normal individual; AS sickle cell heterozygote; SS sickle cell homozygote; HbS sickle cell allele; χ2 chi square value; αα/αα normal α gene; αα/–α α gene single gene deletion; -α/–α α double gene deletion; Hbα allele frequency of α gene deletion; Aβ β gene mutation; Hbβ β allele frequency