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TABLE K-4 Serum Homocysteine (µmol/L) of Persons Aged 12 Years and Older: Mean and Selected Percentiles, United States, 1991–1994

Gender and Age (y)

Number of Examined Persons

Mean

Standard Error of the Mean

M, 12–13

177

6.61

0.20

M, 14–18

395

8.39

0.34

M, 19–30

816

10.29

0.26

M, 31–50

1,055

9.93

0.20

M, 51–70

821

11.94

0.49

M, >70

502

13.40

0.49

F, 12–13

226

6.19

0.22

F, 14–18

448

7.08

0.19

F, 19–30

938

8.05

0.15

F, 31–50

1,446

8.36

0.16

F, 51–70

937

9.68

0.19

F, >70

681

11.83

0.36

Pregnant F, 14–55

143

5.41

0.36

Both, ≥12, unadjusted

8,585

9.51

0.09

a Value does not meet standard of reliability or precision.

SOURCE: NHANES III, 1988–1994, unpublished data, C.L.Johnson and J.D.Wright, National Center for Health Statistics, Centers for Disease Control and Prevention, 1997.



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