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Table 7 Distribution of thalassemia carriers and other Hb variants among the study participants

From: Nationwide carrier detection and molecular characterization of β-thalassemia and hemoglobin E variants in Bangladeshi population

Types of thalassemia carriers and other Hb variants

Number of participants, n

Frequency %, (95% CI)

HbE Trait (ETT)

163

8.68 (7.41–9.95)

β-thalassemia trait (BTT)

42

2.24 (1.57–2.91)

HbE disease

08

0.43 (0.13–0.73)

α-thalassemia trait

02

0.11 (0.04–0.26)

HbD trait

03

0.16 (0.02–0.34)

Suspected NTD HbE/β-thalassemia

02

0.11 (0.04–0.26)

HPFH

03

0.16 (0.02–0.34)

Total carriers of mutations in one or both alleles of globin genes

223

11.89 (10.43–13.35)

  1. CI Confidence Interval, Hb Hemoglobin, HPFH Hereditary persistence of fetal hemoglobin, NTD Non-transfusion dependent