Table 1 Age, weight, transfusion characteristics, serum iron and serum ferritin in children who were exclusively breastfed, exclusively formula fed, or combination fed

Age at diagnosis (months)

6.1 ± 2.8

5.9 ± 3.1

5.3 ± 2.6

0.430

0.653

 6 months (n = 60)

7.2 ± 1.9

6.8 ± 2.5

7.1 ± 2.9

0.142

0.868

 9 months (n = 60)

8.7 ± 2.5

8.9 ± 1.3

8.4 ± 3.1

0.217

0.806

 12 months (n = 60)

10.3 ± 3.6

11.1 ± 2.4

9.9 ± 2.8

0.843

0.436

Pretransfusion hemoglobin (gm/dl)

7.9 ± 1.7

7.8 ± 2.1

8 ± 1.2

0.069

0.934

Transfusions/year (n)

5.3 ± 2.6

6.1 ± 1.5

6.0 ± 1.8

0.931

0.400

 6 months (n = 60)

73 ± 13.8

85 ± 18.5

78 ± 14.2

2.969

0.059

 9 months (n = 60)

87 ± 19.2

99 ± 21.4

92 ± 18.1

1.889

0.161

 12 months (n = 60)

96 ± 23.8

112 ± 29.7

99 ± 24.6

2.113

0.130

 6 months (n = 60)

283 ± 36.9

310 ± 33.4

291 ± 41.7

2.737

0.073

 9 months (n = 60)

327 ± 81.3

389 ± 92.1

345 ± 82.2

2.799

0.070

 12 months (n = 60)

497 ± 118.8

591 ± 154.1

515 ± 136.7

2.641

0.080