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TABLE I-3 Estimated Percentiles of the Distribution of Iron Requirements (mg/d) in Young Children and Adolescent and Adult Males, CSFII (1994–1996)

Estimated Percentiles of Requirements

Young Children, Both Sexesa

Male Adolescents and Adults

0.5–1 yb

1–3 yc

4–8 yc

9–13 yc

14–18 yc

Adultc

2.5

3.01

1.01

1.33

3.91

5.06

3.98

5

3.63

1.24

1.64

4.23

5.42

4.29

10

4.35

1.54

2.05

4.59

5.85

4.64

20

5.23

1.96

2.63

5.03

6.43

5.09

30

5.87

2.32

3.13

5.36

6.89

5.44

40

6.39

2.66

3.62

5.64

7.29

5.74

50d

6.90

3.01

4.11

5.89

7.69

6.03

60

7.41

3.39

4.65

6.15

8.08

6.32

70

7.93

3.82

5.27

6.43

8.51

6.65

80

8.57

4.39

6.08

6.76

9.03

7.04

90

9.44

5.26

7.31

7.21

9.74

7.69

95

10.15

6.06

8.45

7.58

10.32

8.06

97.5e

10.78

6.81

9.52

7.91

10.83

8.49

a Based on pooled estimates of requirement components (see Table 9-6); presented Estimated Average Requirement (EAR) and Recommended Dietary Allowance (RDA) based on the higher estimates obtained for males.

b Based on 10 percent bioavailability.

c Based on 18 percent bioavailability.

d Fiftieth percentile = EAR.

e Ninety-seven and one-half percentile = RDA.



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