Table 3 Hemoglobin concentration and anemia prevalence by thalassemia/hemoglobinopathy status among women and children in Sylhet, Bangladesh

Total population

768

12.4 (1.2)

244 (31.7)

132

11.5 (1.2)

31 (23.5)

395

10.9 (1.3)

195 (49.4)

Any inherited blood disorders

87

12.1 (1.2)

37 (42.5)

15

10.8 (1.4)

6 (40.0)

41

10.5 (1.3)

25 (61.0)

Alpha thalassemia

 Any

53

12.2 (1.3)

21 (39.6)

9

11.2 (1.3)

3 (33.3)

21

10.8 (1.2)

10 (47.6)

 Minima (aa/−a)

51

12.2 (1.3)

20 (39.2)

8

11.4 (1.3)

2 (25.0)

21

10.8 (1.2)

10 (47.6)

  a^3.7deletion

48

12.2 (1.3)

18 (37.5)

8

11.4 (1.3)

2 (25.0)

19

10.8 (1.2)

9 (47.4)

  a^4.2deletion

3

11.6 (0.8)

2 (66.7)

0

–

–

2

10.6 (1.3)

1 (50.0)

 Minor (aa/− or a−/a−)

  a^3.7deletions

1

11

1 (100.0)

1

9.8

1 (100.0)

0

–

–

Hemoglobin Constant Spring

1

13.3

0 (0.0)

0

–

–

0

–

–

Triplicate alpha-globin genes (> 5)

20

12.7 (1.3)

7 (35.0)

3

12.8 (0.4)

0 (0.0)

14

10.7 (1.1)

7 (50.0)

 aaa^anti3.7

18

12.7 (1.3)

6 (33.3)

3

12.8 (0.4)

0 (0.0)

14

10.7 (1.1)

7 (50.0)

 aaa^anti4.2

1

12.8

0 (0.0)

0

–

–

0

–

–

 Unknown

1

11.2

1 (100.0)

0

–

–

0

–

–

Beta thalassemia

 Minor (HbA₂ < 3.5%)

13

11.4 (1.1)

9 (69.2)

2

9.1 (0.4)

2 (100.0)

9

10.5 (1.3)

7 (77.8)

Hemoglobin E

23

12.1 (1.1)

8 (34.8)

4

10.8 (1.5)

1 (25.0)

7

10.4 (0.9)

5 (71.4)

Hemoglobin D

1

13.8 (0.0)

0 (0.0)

0

–

–

2

11.3 (0.7)

1 (50.0)

Hemoglobin S

1

13.7 (0.0)

0 (0.0)

0

–

–

0

–

–

Hemoglobin X (unable to identify)

0

0 (0.0)

0 (0.0)

0

–

–

5

9.3 (2.0)

4 (80.0)