Table 3.8 Means and the Standard Error of the Mean (SEMs) for Usual Daily Intake of Docosahexaenoic Acid (DHA, 22:6 n-3), United States, NHANES III (1988-94) and CSFII (1994-1996, 1998) Data §

Age/Gender GroupsNHANES III (1988-94)CSFII (1994-1996, 1998)
Sample SizePopulation SizeMean IntakeSample SizeMean Intake
(g/day)(%kcal/day)(g/day)
Both sexes, 0–6 months 7931,323,807-596<0.0005
SEM0.001
Both sexes, 7–12 months9151,625,5595300.030
SEM0.008
Both sexes, 1–3 y2,7348,724,4370.0200.013,9490.032
SEM0.0020.0010.001
Both sexes, 4–8 y3,67317,409,4380.0300.013,9350.050
SEM0.0030.0020.005
M, 9–13 y1,2519,113,6700.0300.015950.063
SEM0.0050.0020.010
M, 14–18 y9258,908,2874740.072
SEM0.012
M, 19–30 y1,90221,918,9360.0900.039200.079
SEM0.0080.0040.006
M, 31–50 y2,57935,368,7770.1200.041,8060.094
SEM0.0120.0050.006
M, 51–70 y1,93418,623,5000.1000.041,6800.111
SEM0.0080.0030.007
M, 71+ y1,2966,723,2330.0800.047220.128
SEM0.0080.0040.019
F, 9–13 y1,2618,888,9870.0300.026060.055
SEM0.0060.0030.009
F, 14–18 y1,0628,962,3310.0300.024490.062
SEM0.0040.0020.009
F, 19–30 y2,18122,809,3510.0600.038080.067
SEM0.0100.0030.006
F, 31–50 y3,09737,172,4080.0800.031,6900.071
SEM0.0090.0040.009
F, 51–70 y2,07520,961,6300.0800.041,6050.089
SEM0.0070.0040.006
F, 71+ y1,4219,687,5970.0500.036700.077
SEM0.0080.0050.010
All individuals 29,099 238,221,947 0.070 0.03 21,159 0.057
SEM 0.004 0.002 0.018

§All NHANES III variance estimates were based on Taylor Series (WR) method.

¶NHANES III data consisted of individuals = 2 months and excluded nursing infants and children. Distribution of EPA is very skewed; means and standard errors of the means should be used and interpreted with caution.

-

estimate = 0

†Indicates a statistic that is potentially unreliable because the ratio of the SEM to the estimate times 100 > 20%.

‡EPA estimates of CSFII (1994-96, 98) in the IOM report were calculated using SAS PROC UNIVERIATE, not via JACKKNIFE replication method. SEM data was not available in IOM report.

From: Summary Tables

Cover of Effects of Omega-3 Fatty Acids on Cardiovascular Disease
Effects of Omega-3 Fatty Acids on Cardiovascular Disease.
Evidence Reports/Technology Assessments, No. 94.
Wang C, Chung M, Lichtenstein A, et al.

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