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Serum alpha-carotene

Serum alpha-carotene

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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 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

2.48

(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.

Table 2.4.b. Serum alpha-carotene: Mexican Americans

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.

Table 2.4.c. Serum alpha-carotene: Non-Hispanic blacks

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.

Table 2.4.d. Serum alpha-carotene: Non-Hispanic whites

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.

  • Page last reviewed: July 30, 2008
  • Page last updated: July 30, 2008
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