Geometric mean and selected percentiles of serum concentrations (in ng/mL) for the total U.S. population aged3 years and older, National Health and Nutrition Examination Survey, 1999–2002.
Geometric mean and selected percentiles of serum concentrations (in ng/mL) for Mexican Americans in the U.S.population aged 3 years and older, National Health and Nutrition Examination Survey, 1999–2002.
Geometric mean (95% conf. interval)
Selected percentiles (95% conf. interval)
Sample size
5th
50th
95th
Males and Females
Total, 3 years and older
12.4
(11.9-12.9)
5.70
(5.30-6.20)
12.5
(12.0-12.9)
26.3
(24.8-28.1)
4695
3–5 years
18.1
(17.1-19.2)
10.9
(9.90-11.5)
17.7
(16.7-18.7)
33.6
(28.6-36.8)
266
6–11 years
17.7
(17.1-18.4)
10.4
(9.60-11.0)
17.3
(16.7-17.9)
31.0
(28.8-34.8)
652
12–19 years
12.4
(12.0-12.8)
6.60
(6.10-6.90)
12.6
(12.0-13.2)
22.4
(21.7-24.0)
1637
20–39 years
10.5
(9.96-11.0)
5.00
(4.20-5.60)
10.3
(9.80-11.0)
20.1
(19.4-21.9)
866
40–59 years
11.8
(11.1-12.5)
5.90
(5.10-6.50)
11.9
(11.2-12.4)
23.8
(20.6-28.0)
634
60 years and older
14.4
(13.6-15.2)
6.00
(5.00-6.90)
14.8
(13.5-15.8)
34.1
(30.2-38.7)
640
Males
Total, 3 years and older
12.0
(11.4-12.5)
5.50
(4.80-6.20)
12.1
(11.4-12.6)
25.3
(23.5-27.4)
2293
3–5 years
17.7
(16.6-18.9)
10.5†
(9.70-11.6)
17.4
(16.1-18.5)
34.0†
(27.1-44.8)
139
6–11 years
17.6
(16.7-18.5)
10.1
(9.00-11.0)
17.5
(16.4-18.4)
32.1
(26.2-42.0)
338
12–19 years
12.5
(12.0-13.1)
6.40
(5.80-7.00)
12.6
(12.0-13.3)
24.1
(22.1-26.3)
811
20–39 years
9.85
(9.24-10.5)
4.50
(3.80-5.60)
9.80
(9.20-10.6)
19.3
(17.2-20.0)
383
40–59 years
11.6
(10.8-12.5)
5.80
(5.10-6.60)
11.7
(10.7-12.6)
22.0
(18.4-28.7)
301
60 years and older
13.5
(12.5-14.5)
6.20
(5.00-7.10)
13.2
(12.2-14.8)
29.8
(24.0-48.3)
321
Females
Total, 3 years and older
12.9
(12.4-13.4)
5.90
(5.70-6.40)
13.0
(12.6-13.7)
27.2
(25.6-28.8)
2402
3–5 years
18.5
(17.1-20.0)
11.0†
(9.60-12.0)
18.3
(16.9-19.0)
31.6†
(27.4-36.6)
127
6–11 years
17.9
(17.2-18.6)
10.5
(9.60-11.7)
17.3
(16.6-18.2)
30.8
(28.8-32.1)
314
12–19 years
12.2
(11.8-12.7)
6.60
(6.10-7.00)
12.5
(11.8-13.3)
21.6
(19.8-22.4)
826
20–39 years
11.2
(10.7-11.8)
5.20
(4.90-5.90)
11.0
(10.3-11.7)
22.3
(20.0-27.6)
483
40–59 years
11.9
(11.1-12.8)
5.90
(4.60-6.50)
12.0
(11.1-12.5)
25.4
(21.4-26.6)
333
60 years and older
15.2
(14.3-16.2)
6.10
(5.00-7.20)
15.8
(14.4-16.7)
36.0
(31.5-39.6)
319
† Estimate is subject to greater uncertainty due to small cell size.
Geometric mean and selected percentiles of serum concentrations (in ng/mL) for non-Hispanic blacks in the U.S.population aged 3 years and older, National Health and Nutrition Examination Survey, 1999–2002.
Geometric mean (95% conf. interval)
Selected percentiles (95% conf. interval)
Sample size
5th
50th
95th
Males and Females
Total, 3 years and older
11.3
(10.9-11.8)
5.10
(4.60-5.30)
11.1
(10.6-11.6)
25.5
(23.9-27.1)
3716
3–5 years
16.9
(16.0-17.8)
9.80
(8.70-10.5)
16.2
(15.1-17.8)
34.8
(28.2-39.3)
235
6–11 years
16.9
(16.2-17.6)
9.60
(8.80-10.6)
16.4
(15.8-17.4)
31.8
(28.0-39.5)
604
12–19 years
10.9
(10.5-11.4)
5.30
(5.00-5.70)
11.0
(10.5-11.4)
19.8
(19.0-21.0)
1256
20–39 years
9.73
(9.18-10.3)
5.10
(4.50-5.40)
9.60
(9.10-10.4)
19.8
(18.7-21.4)
593
40–59 years
10.3
(9.86-10.8)
4.40
(4.10-5.10)
10.1
(9.60-10.8)
22.7
(19.4-26.0)
541
60 years and older
12.7
(11.6-13.8)
4.80
(4.20-5.40)
12.2
(11.0-14.0)
38.1
(31.1-43.3)
487
Males
Total, 3 years and older
10.9
(10.5-11.3)
4.80
(4.40-5.10)
10.8
(10.5-11.3)
22.7
(21.2-25.0)
1822
3–5 years
16.6
(15.3-17.9)
9.00†
(7.50-10.6)
15.6
(14.4-17.2)
36.5†
(26.1-55.9)
122
6–11 years
17.0
(16.3-17.8)
9.60
(8.80-10.8)
16.6
(15.9-17.6)
31.6
(26.8-39.5)
305
12–19 years
11.0
(10.5-11.5)
5.10
(4.60-5.80)
11.2
(10.5-11.7)
20.1
(19.2-22.2)
640
20–39 years
9.17
(8.63-9.74)
4.50
(3.50-5.10)
9.50
(8.40-10.2)
17.4
(16.3-19.5)
249
40–59 years
9.69
(9.20-10.2)
4.20
(3.00-4.70)
9.80
(9.20-10.2)
19.2
(17.8-20.6)
274
60 years and older
11.3
(10.3-12.4)
4.60
(3.90-5.20)
11.3
(9.90-12.6)
33.8
(20.0-40.4)
232
Females
Total, 3 years and older
11.7
(11.1-12.3)
5.40
(4.80-5.70)
11.2
(10.7-11.9)
27.4
(25.1-30.4)
1894
3–5 years
17.2
(15.8-18.8)
10.2†
(7.80-10.9)
17.2
(15.2-18.8)
30.9†
(27.1-36.3)
113
6–11 years
16.7
(16.0-17.5)
9.60
(7.90-10.5)
16.3
(15.5-17.3)
32.5
(27.1-38.4)
299
12–19 years
10.8
(10.3-11.4)
5.40
(5.00-5.80)
10.8
(10.3-11.3)
19.4
(18.3-21.0)
616
20–39 years
10.2
(9.49-10.9)
5.40
(4.50-5.70)
9.70
(9.20-10.7)
21.4
(19.2-24.0)
344
40–59 years
10.9
(10.2-11.7)
4.70
(3.50-5.90)
10.6
(9.50-12.1)
24.8
(19.6-29.2)
267
60 years and older
13.6
(12.2-15.2)
5.10
(3.80-6.60)
12.7
(11.6-14.9)
39.5
(30.5-48.0)
255
† Estimate is subject to greater uncertainty due to small cell size.
Geometric mean and selected percentiles of serum concentrations (in ng/mL) for non-Hispanic whites in the U.S.population aged 3 years and older, National Health and Nutrition Examination Survey, 1999–2002.
Geometric mean (95% conf. interval)
Selected percentiles (95% conf. interval)
Sample size
5th
50th
95th
Males and Females
Total, 3 years and older
14.1
(13.6-14.6)
6.00
(5.70-6.30)
14.2
(13.7-14.8)
32.0
(30.9-33.3)
6147
3–5 years
19.6
(18.3-21.1)
10.1†
(8.30-12.3)
18.9
(17.8-20.2)
38.0†
(31.5-48.9)
219
6–11 years
18.7
(17.9-19.5)
9.70
(8.90-10.8)
18.8
(17.9-19.5)
34.2
(31.6-37.8)
494
12–19 years
13.3
(12.8-13.9)
6.20
(5.70-6.70)
13.6
(13.1-14.3)
26.5
(24.0-27.6)
1073
20–39 years
11.9
(11.4-12.6)
5.50
(4.80-5.90)
12.2
(11.2-12.9)
26.3
(24.0-29.1)
1381
40–59 years
13.3
(12.7-13.8)
5.60
(5.20-6.10)
13.3
(12.9-14.0)
29.8
(27.4-31.0)
1276
60 years and older
17.4
(16.8-18.0)
7.20
(6.60-7.60)
17.8
(16.9-18.4)
41.0
(37.4-43.5)
1704
Males
Total, 3 years and older
13.3
(12.9-13.9)
6.00
(5.60-6.30)
13.6
(13.0-14.1)
29.4
(28.1-30.6)
3013
3–5 years
19.2
(17.2-21.4)
9.00†
(7.80-11.1)
18.7
(16.3-19.9)
42.0†
(29.9-57.6)
116
6–11 years
18.2
(17.0-19.5)
8.90
(7.60-11.0)
18.0
(16.8-19.2)
34.7
(29.7-38.0)
260
12–19 years
13.0
(12.4-13.7)
6.20
(5.60-6.80)
13.4
(12.8-13.9)
26.0
(22.8-27.3)
536
20–39 years
11.3
(10.6-12.0)
5.40
(4.40-6.10)
11.3
(10.4-12.4)
23.0
(20.2-24.5)
577
40–59 years
12.7
(12.2-13.3)
5.70
(5.20-6.40)
13.0
(12.3-13.5)
27.3
(25.4-28.8)
666
60 years and older
15.8
(15.1-16.5)
6.30
(6.10-7.30)
16.0
(15.2-17.0)
35.9
(33.6-37.6)
858
Females
Total, 3 years and older
14.9
(14.3-15.4)
6.10
(5.80-6.50)
15.1
(14.5-15.7)
34.2
(32.4-35.8)
3134
3–5 years
20.1
(18.8-21.5)
11.6†
(8.30-14.1)
19.1
(18.4-21.6)
33.5†
(28.9-39.0)
103
6–11 years
19.2
(18.3-20.1)
10.2
(8.90-11.1)
19.4
(18.8-20.2)
33.6
(29.4-40.3)
234
12–19 years
13.7
(12.9-14.5)
6.40
(5.20-7.10)
13.9
(13.2-14.7)
26.6
(23.0-31.6)
537
20–39 years
12.6
(12.0-13.4)
5.60
(5.10-5.90)
13.0
(11.8-13.7)
30.4
(26.3-32.4)
804
40–59 years
13.8
(13.1-14.6)
5.70
(5.10-6.30)
13.9
(12.9-15.1)
31.0
(28.7-35.0)
610
60 years and older
18.8
(18.0-19.7)
7.70
(7.20-8.60)
18.9
(18.0-19.8)
43.6
(40.0-46.1)
846
† Estimate is subject to greater uncertainty due to small cell size.
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