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. Author manuscript; available in PMC: 2012 Nov 1.
Published in final edited form as: Nutr Rev. 2011 Nov;69(Suppl 1):S23–S29. doi: 10.1111/j.1753-4887.2011.00429.x

Table 1.

Usual intake of Iron from Food (mg/d): Pregnant Women from NHANES III (1988–1994) and Camden (2001–2007)

Percentiles NHANES III Camden Study
95% 24 mg/d 28 mg/d
90 21 24
75% 17.6 19
50% (Median) 14.7 15
25% 12.2 12
10% 10.2 9
5% 9 8
Mean 15 16
SEM 0.75 0.23
N 346 997
% Below
Estimated Average
Requirement (EAR) 90% 83%