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Erythrocyte protoporphyrin

 

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Table 3.5.a. Erythrocyte protoporphyrin: Total population

Geometric mean and selected percentiles of red blood cell concentrations (in µg/dL) for the total U.S. population aged 1 year and older, National Health and Nutrition Examination Survey, 1999–2000.

Geometric mean
(95% conf. interval)

Selected percentiles (95% conf. interval)

Sample
size

10th

50th

90th

Males and Females

Total, 1 year and older

47.6

(46.7-48.6)

33.0

(32.0-33.0)

46.0

(44.0-47.0)

72.0

(70.0-73.0)

7985

1–5 years

47.8

(45.9-49.9)

32.0

(31.0-34.0)

45.0

(42.0-48.0)

69.0

(67.0-72.0)

728

6–11 years

45.2

(42.7-47.8)

31.0

(29.0-34.0)

45.0

(42.0-48.0)

65.0

(60.0-72.0)

905

12–19 years

46.0

(44.5-47.5)

33.0

(31.0-34.0)

45.0

(43.0-46.0)

70.0

(67.0-73.0)

2139

20–39 years

46.7

(45.5-47.9)

31.0

(30.0-32.0)

44.0

(42.0-44.0)

72.0

(69.0-76.0)

1477

40–59 years

48.3

(47.3-49.3)

34.0

(32.0-35.0)

45.0

(44.0-47.0)

71.0

(67.0-75.0)

1217

60 years and older

51.1

(50.1-52.1)

33.0

(32.0-34.0)

48.0

(48.0-50.0)

76.0

(73.0-80.0)

1519

Males

Total, 1 year and older

42.9

(41.9-44.0)

30.0

(30.0-32.0)

41.0

(40.0-43.0)

59.0

(58.0-61.0)

3926

1–5 years

47.2

(45.0-49.5)

31.0

(30.0-34.0)

46.0

(43.0-49.0)

68.0

(64.0-73.0)

401

6–11 years

44.1

(41.4-47.0)

31.0

(28.0-33.0)

43.0

(41.0-47.0)

61.0

(54.0-72.0)

473

12–19 years

41.6

(40.0-43.2)

30.0

(29.0-32.0)

41.0

(39.0-42.0)

56.0

(53.0-59.0)

1082

20–39 years

40.5

(38.8-42.2)

30.0

(28.0-31.0)

39.0

(37.0-40.0)

58.0

(54.0-61.0)

634

40–59 years

43.1

(42.2-44.2)

32.0

(30.0-33.0)

41.0

(40.0-42.0)

57.0

(55.0-61.0)

578

60 years and older

47.2

(46.3-48.1)

32.0

(32.0-34.0)

45.0

(43.0-46.0)

71.0

(66.0-76.0)

758

Females

Total, 1 year and older

52.7

(51.5-53.9)

35.0

(34.0-37.0)

49.0

(48.0-51.0)

79.0

(77.0-82.0)

4059

1–5 years

48.6

(45.3-52.2)

34.0

(31.0-36.0)

45.0

(42.0-50.0)

71.0

(66.0-77.0)

327

6–11 years

46.4

(43.5-49.4)

32.0

(30.0-35.0)

46.0

(42.0-48.0)

68.0

(62.0-75.0)

432

12–19 years

51.1

(49.2-53.0)

34.0

(32.0-37.0)

49.0

(47.0-51.0)

76.0

(71.0-81.0)

1057

20–39 years

53.8

(52.5-55.0)

36.0

(36.0-37.0)

49.0

(49.0-51.0)

83.0

(78.0-89.0)

843

40–59 years

53.6

(51.3-56.0)

36.0

(34.0-37.0)

51.0

(48.0-52.0)

83.0

(74.0-93.0)

639

60 years and older

54.4

(52.5-56.5)

37.0

(34.0-38.0)

52.0

(49.0-55.0)

80.0

(75.0-85.0)

761

 

Table 3.5.b. Erythrocyte protoporphyrin: Mexican Americans

Geometric mean and selected percentiles of red blood cell concentrations (in µg/dL) for Mexican Americans in the U.S. population aged 1 year and older, National Health and Nutrition Examination Survey, 1999–2000.

Geometric mean
(95% conf. interval)

Selected percentiles (95% conf. interval)

Sample
size

10th

50th

90th

Males and Females

Total, 1 year and older

52.3

(50.8-53.9)

35.0

(33.0-36.0)

49.0

(48.0-51.0)

84.0

(80.0-88.0)

2741

1–5 years

53.6

(50.5-56.9)

38.0

(35.0-40.0)

50.0

(48.0-52.0)

79.0

(71.0-94.0)

283

6–11 years

51.8

(49.6-54.1)

34.0

(33.0-38.0)

49.0

(47.0-53.0)

81.0

(73.0-87.0)

368

12–19 years

53.9

(50.6-57.5)

35.0

(34.0-37.0)

50.0

(48.0-52.0)

89.0

(73.0-116)

942

20–39 years

50.6

(47.7-53.7)

32.0

(32.0-36.0)

47.0

(45.0-51.0)

80.0

(71.0-93.0)

410

40–59 years

53.8

(52.0-55.8)

34.0

(33.0-36.0)

52.0

(48.0-55.0)

88.0

(79.0-94.0)

345

60 years and older

53.1

(50.8-55.4)

34.0

(33.0-37.0)

51.0

(47.0-54.0)

82.0

(77.0-86.0)

393

Males

Total, 1 year and older

46.6

(45.1-48.1)

31.0

(29.0-33.0)

45.0

(43.0-46.0)

69.0

(66.0-71.0)

1361

1–5 years

55.4

(51.6-59.5)

39.0

(34.0-40.0)

52.0

(47.0-53.0)

84.0

(72.0-120)

156

6–11 years

50.6

(47.6-53.8)

37.0

(33.0-40.0)

48.0

(46.0-53.0)

73.0

(62.0-90.0)

200

12–19 years

47.5

(46.1-48.9)

33.0

(31.0-36.0)

45.0

(43.0-46.0)

70.0

(66.0-74.0)

482

20–39 years

42.7

(40.6-44.8)

31.0

(27.0-34.0)

41.0

(40.0-43.0)

61.0

(54.0-66.0)

172

40–59 years

45.9

(43.8-48.2)

32.0

(29.0-35.0)

44.0

(41.0-47.0)

66.0

(61.0-78.0)

153

60 years and older

47.7

(45.4-50.2)

33.0

(29.0-35.0)

46.0

(41.0-49.0)

73.0

(67.0-86.0)

198

Females

Total, 1 year and older

59.2

(57.0-61.5)

38.0

(37.0-40.0)

56.0

(54.0-58.0)

96.0

(88.0-108)

1380

1–5 years

51.4

(47.8-55.3)

37.0

(31.0-41.0)

48.0

(45.0-53.0)

71.0

(64.0-88.0)

127

6–11 years

53.2

(50.8-55.7)

34.0

(33.0-38.0)

51.0

(48.0-54.0)

86.0

(73.0-89.0)

168

12–19 years

60.8

(55.0-67.1)

40.0

(38.0-42.0)

57.0

(53.0-61.0)

110

(69.0-127)

460

20–39 years

61.3

(56.1-67.0)

39.0

(36.0-42.0)

58.0

(52.0-63.0)

101

(81.0-138)

238

40–59 years

62.5

(60.3-64.8)

37.0

(34.0-41.0)

60.0

(56.0-64.0)

100

(90.0-119)

192

60 years and older

58.5

(55.6-61.5)

39.0

(36.0-41.0)

56.0

(53.0-59.0)

85.0

(80.0-97.0)

195

 

Table 3.5.c. Erythrocyte protoporphyrin: Non-Hispanic blacks

Geometric mean and selected percentiles of red blood cell concentrations (in µg/dL) for non-Hispanic blacks in the U.S. population aged 1 year and older, National Health and Nutrition Examination Survey, 1999–2000.

Geometric mean
(95% conf. interval)

Selected percentiles (95% conf. interval)

Sample
size

10th

50th

90th

Males and Females

Total, 1 year and older

47.4

(45.8-49.1)

31.0

(30.0-33.0)

44.0

(43.0-47.0)

72.0

(69.0-75.0)

1817

1–5 years

45.4

(43.1-47.8)

31.0

(28.0-33.0)

45.0

(42.0-48.0)

61.0

(57.0-68.0)

180

6–11 years

44.9

(42.7-47.2)

30.0

(29.0-31.0)

44.0

(42.0-46.0)

63.0

(58.0-71.0)

270

12–19 years

45.2

(43.0-47.5)

31.0

(28.0-32.0)

42.0

(40.0-44.0)

67.0

(63.0-75.0)

587

20–39 years

48.0

(44.9-51.3)

32.0

(29.0-34.0)

45.0

(40.0-49.0)

76.0

(67.0-84.0)

277

40–59 years

48.3

(46.0-50.7)

32.0

(31.0-34.0)

46.0

(43.0-48.0)

71.0

(62.0-93.0)

255

60 years and older

51.0

(48.2-54.0)

34.0

(32.0-38.0)

48.0

(45.0-51.0)

78.0

(70.0-86.0)

248

Males

Total, 1 year and older

41.9

(40.1-43.9)

29.0

(28.0-32.0)

41.0

(39.0-43.0)

58.0

(56.0-62.0)

890

1–5 years

45.4

(42.7-48.3)

31.0†

(28.0-36.0)

46.0

(39.0-49.0)

61.0†

(53.0-68.0)

98

6–11 years

43.4

(41.6-45.3)

30.0

(27.0-32.0)

43.0

(40.0-45.0)

60.0

(56.0-70.0)

134

12–19 years

40.5

(39.0-42.1)

29.0

(28.0-31.0)

39.0

(37.0-40.0)

57.0

(51.0-63.0)

301

20–39 years

39.3

(36.2-42.7)

29.0

(26.0-32.0)

38.0

(34.0-40.0)

54.0

(45.0-67.0)

117

40–59 years

42.7

(40.7-44.8)

30.0

(27.0-32.0)

42.0

(38.0-43.0)

57.0

(52.0-63.0)

123

60 years and older

47.5

(43.9-51.4)

32.0

(26.0-36.0)

46.0

(41.0-50.0)

71.0

(62.0-80.0)

117

Females

Total, 1 year and older

53.0

(51.1-54.8)

34.0

(33.0-37.0)

50.0

(48.0-53.0)

82.0

(77.0-88.0)

927

1–5 years

45.4

(42.0-49.0)

31.0†

(28.0-33.0)

43.0

(39.0-49.0)

68.0†

(58.0-79.0)

82

6–11 years

46.5

(42.6-50.8)

30.0

(29.0-33.0)

45.0

(41.0-49.0)

72.0

(62.0-76.0)

136

12–19 years

50.7

(46.2-55.6)

35.0

(32.0-37.0)

46.0

(44.0-50.0)

79.0

(65.0-94.0)

286

20–39 years

56.6

(52.7-60.7)

37.0

(33.0-39.0)

54.0

(51.0-58.0)

82.0

(71.0-104)

160

40–59 years

53.6

(49.4-58.3)

34.0

(31.0-37.0)

53.0

(48.0-56.0)

84.0

(70.0-99.0)

132

60 years and older

53.8

(50.5-57.3)

36.0

(34.0-39.0)

51.0

(46.0-52.0)

82.0

(70.0-105)

131

† Estimate is subject to greater uncertainty due to small cell size.

 

Table 3.5.d. Erythrocyte protoporphyrin: Non-Hispanic whites

Geometric mean and selected percentiles of red blood cell concentrations (in µg/dL) for non-Hispanic whites in the U.S. population aged 1 year and older, National Health and Nutrition Examination Survey, 1999–2000.

Geometric mean
(95% conf. interval)

Selected percentiles (95% conf. interval)

Sample
size

10th

50th

90th

Males and Females

Total, 1 year and older

46.3

(45.4-47.3)

31.0

(30.0-32.0)

43.0

(43.0-45.0)

68.0

(66.0-70.0)

2674

1–5 years

45.8

(43.0-48.8)

31.0

(30.0-34.0)

44.0

(40.0-47.0)

67.0

(60.0-72.0)

177

6–11 years

43.3

(39.7-47.2)

31.0

(27.0-34.0)

43.0

(40.0-46.0)

61.0

(53.0-73.0)

192

12–19 years

44.2

(42.1-46.3)

32.0

(29.0-33.0)

44.0

(41.0-45.0)

62.0

(58.0-72.0)

423

20–39 years

45.1

(43.5-46.8)

32.0

(30.0-32.0)

44.0

(42.0-44.0)

69.0

(61.0-73.0)

610

40–59 years

46.7

(45.8-47.6)

34.0

(32.0-35.0)

45.0

(43.0-46.0)

66.0

(63.0-71.0)

502

60 years and older

50.3

(49.5-51.0)

34.0

(32.0-34.0)

48.0

(47.0-50.0)

75.0

(72.0-78.0)

770

Males

Total, 1 year and older

42.0

(40.8-43.2)

30.0

(30.0-32.0)

41.0

(40.0-42.0)

58.0

(56.0-60.0)

1330

1–5 years

44.1

(41.3-47.0)

31.0†

(28.0-33.0)

44.0

(40.0-47.0)

64.0†

(55.0-67.0)

95

6–11 years

41.9

(37.8-46.5)

29.0†

(26.0-33.0)

41.0

(39.0-45.0)

61.0†

(49.0-72.0)

103

12–19 years

40.7

(38.1-43.5)

28.0

(26.0-32.0)

41.0

(37.0-43.0)

54.0

(49.0-59.0)

215

20–39 years

39.1

(37.5-40.9)

29.0

(25.0-30.0)

37.0

(35.0-39.0)

53.0

(49.0-59.0)

265

40–59 years

42.7

(41.3-44.2)

32.0

(28.0-34.0)

41.0

(40.0-43.0)

56.0

(52.0-60.0)

258

60 years and older

46.4

(45.3-47.4)

33.0

(32.0-34.0)

43.0

(42.0-45.0)

67.0

(64.0-74.0)

394

Females

Total, 1 year and older

51.0

(49.7-52.3)

35.0

(34.0-37.0)

47.0

(46.0-49.0)

75.0

(73.0-80.0)

1344

1–5 years

47.9

(42.0-54.7)

34.0†

(31.0-36.0)

42.0

(38.0-49.0)

69.0†

(60.0-93.0)

82

6–11 years

45.0

(40.8-49.5)

32.0†

(29.0-35.0)

44.0

(39.0-50.0)

60.0†

(55.0-77.0)

89

12–19 years

48.4

(46.0-50.9)

33.0

(32.0-37.0)

47.0

(45.0-50.0)

73.0

(67.0-77.0)

208

20–39 years

51.9

(49.2-54.8)

36.0

(34.0-39.0)

48.0

(47.0-49.0)

81.0

(72.0-99.0)

345

40–59 years

51.0

(48.8-53.3)

36.0

(34.0-37.0)

49.0

(45.0-52.0)

74.0

(68.0-83.0)

244

60 years and older

53.7

(51.8-55.7)

36.0

(34.0-39.0)

52.0

(49.0-56.0)

79.0

(73.0-84.0)

376

† Estimate is subject to greater uncertainty due to small cell size.

 

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