Table 2.4.a. Serum alpha-carotene: Total population
Geometric mean and selected percentiles of serum concentrations (in µg/dL) for the total U.S. population aged3 years and older, National Health and Nutrition Examination Survey, 2001–2002.
Geometric mean (95% conf. interval)
Selected percentiles (95% conf. interval)
Sample size
10th
50th
90th
Males and Females
Total, 3 years and older
2.48
(2.23-2.76)
.700
(<LOD-.800)
2.36
(2.10-2.70)
8.50
(7.40-9.30)
8359
3–5 years
2.41
(2.13-2.74)
.800
(<LOD-1.00)
2.20
(1.90-2.50)
8.50
(7.00-10.3)
430
6–11 years
2.24
(2.00-2.51)
.800
(.800-.900)
2.00
(1.80-2.30)
6.10
(5.20-7.70)
1014
12–19 years
1.68
(1.52-1.86)
< LOD
1.40
(1.30-1.60)
5.10
(4.40-6.20)
2206
20–39 years
2.22
(1.93-2.56)
< LOD
2.20
(1.90-2.50)
7.80
(6.70-8.80)
1716
40–59 years
2.98
(2.60-3.42)
.800
(.700-1.00)
2.80
(2.50-3.30)
10.7
(8.60-13.0)
1470
60 years and older
3.08
(2.74-3.46)
.800
(<LOD-1.00)
3.10
(2.70-3.60)
9.10
(8.60-9.80)
1523
Males
Total, 3 years and older
2.22
(1.98-2.49)
< LOD
2.10
(1.90-2.30)
7.20
(6.30-8.60)
4052
3–5 years
2.29
(1.91-2.74)
.700
(<LOD-.800)
2.00
(1.70-2.40)
7.20
(5.00-11.1)
217
6–11 years
2.28
(1.96-2.65)
.800
(.800-1.00)
2.00
(1.80-2.40)
6.60
(5.00-8.50)
507
12–19 years
1.55
(1.38-1.75)
< LOD
1.40
(1.20-1.60)
4.40
(3.80-6.00)
1092
20–39 years
1.99
(1.72-2.31)
< LOD
1.80
(1.50-2.10)
6.90
(5.60-8.60)
724
40–59 years
2.53
(2.17-2.95)
.800
(<LOD-.900)
2.40
(2.00-2.90)
8.60
(6.30-11.3)
763
60 years and older
2.81
(2.48-3.18)
.800
(<LOD-.900)
2.90
(2.50-3.50)
8.40
(7.40-9.30)
749
Females
Total, 3 years and older
2.75
(2.47-3.07)
.700
(<LOD-.900)
2.70
(2.30-3.00)
9.20
(8.20-10.5)
4307
3–5 years
2.55
(1.99-3.26)
.700
(<LOD-1.50)
2.30
(1.80-3.10)
9.70
(7.10-12.4)
213
6–11 years
2.20
(1.97-2.45)
.800
(.800-.900)
2.10
(1.80-2.30)
5.80
(4.90-6.50)
507
12–19 years
1.83
(1.63-2.04)
< LOD
1.70
(1.50-2.00)
5.40
(4.60-6.90)
1114
20–39 years
2.45
(2.10-2.86)
< LOD
2.30
(1.90-2.70)
8.10
(6.80-9.20)
992
40–59 years
3.55
(3.10-4.06)
1.10
(.900-1.30)
3.40
(2.90-3.70)
12.4
(10.5-15.8)
707
60 years and older
3.30
(2.87-3.79)
1.00
(.800-1.20)
3.20
(2.80-3.90)
9.70
(8.70-10.4)
774
< LOD means less than the limit of detection, which may vary for some compounds by year. See Appendix D for LOD.
Geometric mean and selected percentiles of serum concentrations (in µg/dL) for Mexican Americans in the U.S.population aged 3 years and older, National Health and Nutrition Examination Survey, 2001–2002.
Geometric mean (95% conf. interval)
Selected percentiles (95% conf. interval)
Sample size
10th
50th
90th
Males and Females
Total, 3 years and older
2.72
(2.39-3.10)
1.00
(.900-1.10)
2.50
(2.30-2.80)
7.40
(6.30-8.90)
2116
3–5 years
2.56
(2.12-3.08)
1.00
(.800-1.50)
2.20
(2.10-2.50)
6.40
(4.50-9.00)
126
6–11 years
2.43
(2.12-2.79)
.900
(.800-1.10)
2.20
(2.00-2.70)
5.40
(4.70-6.70)
290
12–19 years
1.90
(1.71-2.11)
.700
(<LOD-.800)
1.70
(1.50-2.10)
5.30
(3.90-6.40)
696
20–39 years
2.92
(2.48-3.43)
1.00
(.800-1.30)
2.80
(2.50-3.40)
8.00
(6.60-9.10)
460
40–59 years
3.39
(2.71-4.24)
1.10
(.900-1.40)
3.30
(2.60-4.10)
8.70
(7.20-14.3)
289
60 years and older
3.04
(2.35-3.94)
.900
(<LOD-1.30)
2.90
(2.30-4.00)
8.90
(6.20-13.7)
255
Males
Total, 3 years and older
2.46
(2.13-2.83)
.800
(.700-1.00)
2.44
(2.20-2.70)
6.60
(5.30-8.00)
1019
3–5 years
2.37
(1.70-3.32)
.800†
(<LOD-1.50)
2.20
(1.70-2.80)
5.90†
(2.90-12.1)
62
6–11 years
2.39
(1.89-3.03)
.800
(.700-1.00)
2.20
(1.70-2.90)
5.50
(3.90-8.40)
140
12–19 years
1.69
(1.48-1.92)
.700
(<LOD-.800)
1.50
(1.30-1.90)
4.20
(3.30-6.20)
330
20–39 years
2.51
(2.06-3.06)
.800
(<LOD-1.10)
2.60
(2.10-3.10)
6.70
(5.20-7.90)
213
40–59 years
3.33
(2.61-4.23)
1.20
(.800-1.70)
3.20
(2.50-4.10)
8.10
(5.90-13.2)
149
60 years and older
2.49
(1.83-3.38)
.700
(<LOD-1.10)
2.60
(1.90-3.00)
7.00
(5.50-9.10)
125
Females
Total, 3 years and older
3.04
(2.66-3.48)
1.00
(.900-1.20)
2.80
(2.50-3.30)
8.50
(7.10-10.8)
1097
3–5 years
2.75
(2.28-3.32)
1.20†
(<LOD-1.60)
2.40
(2.00-3.10)
6.00†
(4.20-9.00)
64
6–11 years
2.48
(2.16-2.85)
1.20
(.900-1.50)
2.30
(1.90-3.00)
5.00
(4.00-6.00)
150
12–19 years
2.16
(1.92-2.43)
.800
(.700-.900)
2.00
(1.60-2.50)
5.80
(4.40-7.30)
366
20–39 years
3.45
(2.87-4.15)
1.20
(.900-1.40)
3.20
(2.60-4.30)
9.10
(8.00-12.7)
247
40–59 years
3.46
(2.66-4.49)
.900
(.700-1.40)
3.30
(2.40-4.80)
10.8
(8.00-14.8)
140
60 years and older
3.58
(2.63-4.86)
1.30
(.900-1.80)
3.60
(2.40-4.80)
11.5
(6.00-15.2)
130
< LOD means less than the limit of detection, which may vary for some compounds by year. See Appendix D for LOD.
† Estimate is subject to greater uncertainty due to small cell size.
Geometric mean and selected percentiles of serum concentrations (in µg/dL) for non-Hispanic blacks in the U.S.population aged 3 years and older, National Health and Nutrition Examination Survey, 2001–2002.
Geometric mean (95% conf. interval)
Selected percentiles (95% conf. interval)
Sample size
10th
50th
90th
Males and Females
Total, 3 years and older
1.77
(1.51-2.08)
< LOD
1.60
(1.30-1.90)
6.10
(4.80-8.20)
1992
3–5 years
1.75
(1.40-2.17)
< LOD
1.40
(1.10-1.80)
5.00
(3.20-13.9)
128
6–11 years
1.92
(1.69-2.19)
.900
(.800-1.00)
1.70
(1.40-1.90)
4.30
(3.50-5.60)
340
12–19 years
1.38
(1.20-1.59)
< LOD
1.20
(1.10-1.50)
3.90
(2.80-5.30)
671
20–39 years
1.71
(1.27-2.29)
< LOD
1.50
(1.10-2.10)
5.80
(3.90-11.4)
319
40–59 years
1.88
(1.65-2.13)
< LOD
1.80
(1.50-2.00)
7.20
(6.10-9.70)
291
60 years and older
2.22
(1.70-2.90)
< LOD
2.00
(1.40-2.70)
9.30
(4.90-15.1)
243
Males
Total, 3 years and older
1.65
(1.38-1.96)
< LOD
1.40
(1.20-1.80)
5.80
(4.20-7.40)
984
3–5 years
1.54
(1.18-2.02)
< LOD†
1.30
(1.00-1.90)
3.90†
(2.20-13.9)
64
6–11 years
2.08
(1.82-2.36)
.900
(.800-1.20)
1.90
(1.70-2.20)
4.60
(3.50-6.60)
175
12–19 years
1.32
(1.11-1.57)
< LOD
1.10
(1.00-1.34)
3.30
(2.70-5.50)
340
20–39 years
1.55
(1.07-2.24)
< LOD
1.40
(.900-2.30)
6.10
(3.40-9.60)
132
40–59 years
1.71
(1.44-2.03)
< LOD
1.80
(1.20-2.10)
6.60
(4.50-8.40)
154
60 years and older
1.94
(1.56-2.43)
< LOD
1.50
(1.30-2.40)
6.70
(4.20-12.5)
119
Females
Total, 3 years and older
1.88
(1.58-2.23)
< LOD
1.70
(1.40-1.90)
6.50
(4.90-9.40)
1008
3–5 years
1.98
(1.52-2.60)
< LOD†
1.70
(1.30-2.20)
6.00†
(3.20-33.8)
64
6–11 years
1.76
(1.40-2.22)
.700
(<LOD-.900)
1.60
(1.30-1.90)
3.70
(2.60-8.30)
165
12–19 years
1.45
(1.27-1.65)
< LOD
1.30
(1.10-1.60)
4.00
(2.90-5.50)
331
20–39 years
1.83
(1.33-2.50)
< LOD
1.80
(1.10-2.20)
5.30
(3.90-11.5)
187
40–59 years
2.04
(1.69-2.46)
< LOD
1.70
(1.50-2.10)
7.90
(5.90-13.8)
137
60 years and older
2.44
(1.71-3.47)
< LOD
2.10
(1.40-3.20)
9.40
(5.90-17.6)
124
< LOD means less than the limit of detection, which may vary for some compounds by year. See Appendix D for LOD.
† Estimate is subject to greater uncertainty due to small cell size.
Geometric mean and selected percentiles of serum concentrations (in µg/dL) for non-Hispanic whites in the U.S.population aged 3 years and older, National Health and Nutrition Examination Survey, 2001–2002.
Geometric mean (95% conf. interval)
Selected percentiles (95% conf. interval)
Sample size
10th
50th
90th
Males and Females
Total, 3 years and older
2.57
(2.25-2.94)
.800
(<LOD-.900)
2.40
(2.10-2.90)
8.80
(7.70-10.2)
3583
3–5 years
2.46
(1.95-3.11)
.800
(<LOD-1.40)
2.10
(1.70-3.00)
8.50
(5.60-11.1)
133
6–11 years
2.29
(1.98-2.65)
.700
(<LOD-.900)
2.20
(1.80-2.50)
6.50
(4.90-10.2)
301
12–19 years
1.69
(1.48-1.93)
< LOD
1.40
(1.20-1.70)
5.30
(4.40-6.50)
656
20–39 years
2.17
(1.86-2.55)
< LOD
2.00
(1.60-2.30)
8.10
(6.30-9.20)
772
40–59 years
3.12
(2.66-3.67)
.900
(.800-1.20)
2.90
(2.50-3.40)
11.3
(8.60-14.2)
777
60 years and older
3.16
(2.78-3.58)
.900
(<LOD-1.00)
3.30
(2.80-3.80)
9.20
(8.50-9.90)
944
Males
Total, 3 years and older
2.28
(1.99-2.62)
< LOD
2.10
(1.90-2.60)
7.80
(6.30-9.20)
1739
3–5 years
2.44
(1.99-2.98)
1.00†
(<LOD-1.30)
2.20
(1.70-2.50)
8.50†
(4.40-11.3)
72
6–11 years
2.35
(1.87-2.96)
.900
(<LOD-1.10)
2.00
(1.60-2.70)
8.10
(4.40-13.4)
157
12–19 years
1.53
(1.31-1.79)
< LOD
1.30
(1.10-1.70)
4.40
(3.80-6.20)
323
20–39 years
1.95
(1.66-2.28)
< LOD
1.90
(1.50-2.10)
7.30
(5.20-8.90)
312
40–59 years
2.59
(2.16-3.11)
.800
(<LOD-.900)
2.50
(2.00-3.00)
8.80
(5.70-12.0)
407
60 years and older
2.86
(2.47-3.32)
.800
(<LOD-.900)
3.00
(2.30-3.70)
8.40
(7.40-9.80)
468
Females
Total, 3 years and older
2.89
(2.49-3.35)
.700
(<LOD-.900)
2.90
(2.40-3.20)
9.70
(8.30-11.5)
1844
3–5 years
2.49
(1.49-4.17)
< LOD†
2.20
(1.50-4.70)
8.50†
(5.40-14.7)
61
6–11 years
2.22
(1.97-2.50)
.700
(<LOD-.900)
2.20
(1.80-2.60)
6.00
(4.40-8.40)
144
12–19 years
1.86
(1.58-2.19)
< LOD
1.70
(1.50-2.20)
5.90
(4.80-7.50)
333
20–39 years
2.40
(2.00-2.89)
< LOD
2.30
(1.80-2.80)
8.30
(7.20-10.5)
460
40–59 years
3.83
(3.26-4.51)
1.20
(.900-1.40)
3.60
(3.10-4.50)
12.7
(10.4-17.0)
370
60 years and older
3.40
(2.92-3.96)
1.10
(.800-1.30)
3.37
(2.90-4.10)
9.50
(8.60-10.5)
476
< LOD means less than the limit of detection, which may vary for some compounds by year. See Appendix D for LOD.
† Estimate is subject to greater uncertainty due to small cell size.
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