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U.S. Serum Electrolyte Concentration Data from the Third National Health and Nutrition Examination Survey, 1988–1994

TABLE J-1 Mean and Selected Percentiles of Serum Potassium (mmol/L): United States, NHANES III, 1988–1994

Sex/Age Categorya

n

Mean

Percentile

1st

5th

10th

M, 14–18 y

1,196

4.18

3.82

3.92

3.97

Standard error

 

0.02

0.07

0.05

0.05

M, 19–50 y

4,277

4.08

3.63

3.76

3.83

Standard error

 

0.01

0.02

0.02

0.02

M, 51–70 y

1,953

4.11

3.43

3.65

3.76

Standard error

 

0.01

0.03

0.02

0.02

M, 71+ y

1,328

4.26

3.60

3.80

3.91

Standard error

 

0.02

0.04

0.03

0.02

F, 14–18 y

1,269

4.06

3.69

3.79

3.84

Standard error

 

0.02

0.04

0.03

0.03

F, 19–50 y

4,675

4.00

3.52

3.67

3.74

Standard error

 

0.01

0.03

0.02

0.02

F, 51–70 y

2,046

4.04

3.38

3.60

3.71

Standard error

 

0.01

0.03

0.03

0.02

F, 71+ y

1,489

4.11

3.34

3.58

3.70

Standard error

 

0.02

0.03

0.02

0.02

Pregnant

323

3.91

3.52

3.62

3.68

Standard error

 

0.02

0.18

0.14

0.11

Lactating

100

4.08

3.61

3.76

3.84

Standard error

 

0.05

0.37

0.25

0.19

a M = male, F = female (not pregnant and/or lactating).

NOTE: Data were adjusted using the Iowa State University method to provide estimates of usual serum potassium concentrations. Means, standard errors, and percentiles were obtained using C-Side. Standard errors were estimated via jackknife replication. Each standard error has 49 degrees of freedom. Females who had “blank but applicable” pregnancy or lactating status data or who responded “I don’t know” to questions on pregnancy or lactating status were excluded from the analysis.



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Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate J U.S. Serum Electrolyte Concentration Data from the Third National Health and Nutrition Examination Survey, 1988–1994 TABLE J-1 Mean and Selected Percentiles of Serum Potassium (mmol/L): United States, NHANES III, 1988–1994 Sex/Age Categorya n Mean Percentile 1st 5th 10th M, 14–18 y 1,196 4.18 3.82 3.92 3.97 Standard error   0.02 0.07 0.05 0.05 M, 19–50 y 4,277 4.08 3.63 3.76 3.83 Standard error   0.01 0.02 0.02 0.02 M, 51–70 y 1,953 4.11 3.43 3.65 3.76 Standard error   0.01 0.03 0.02 0.02 M, 71+ y 1,328 4.26 3.60 3.80 3.91 Standard error   0.02 0.04 0.03 0.02 F, 14–18 y 1,269 4.06 3.69 3.79 3.84 Standard error   0.02 0.04 0.03 0.03 F, 19–50 y 4,675 4.00 3.52 3.67 3.74 Standard error   0.01 0.03 0.02 0.02 F, 51–70 y 2,046 4.04 3.38 3.60 3.71 Standard error   0.01 0.03 0.03 0.02 F, 71+ y 1,489 4.11 3.34 3.58 3.70 Standard error   0.02 0.03 0.02 0.02 Pregnant 323 3.91 3.52 3.62 3.68 Standard error   0.02 0.18 0.14 0.11 Lactating 100 4.08 3.61 3.76 3.84 Standard error   0.05 0.37 0.25 0.19 a M = male, F = female (not pregnant and/or lactating). NOTE: Data were adjusted using the Iowa State University method to provide estimates of usual serum potassium concentrations. Means, standard errors, and percentiles were obtained using C-Side. Standard errors were estimated via jackknife replication. Each standard error has 49 degrees of freedom. Females who had “blank but applicable” pregnancy or lactating status data or who responded “I don’t know” to questions on pregnancy or lactating status were excluded from the analysis.

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Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate 25th 50th 75th 90th 95th 99th 4.07 4.18 4.29 4.40 4.47 4.59 0.03 0.02 0.03 0.05 0.06 0.09 3.94 4.07 4.21 4.34 4.42 4.58 0.01 0.01 0.01 0.02 0.02 0.03 3.94 4.12 4.29 4.46 4.56 4.77 0.02 0.02 0.02 0.02 0.02 0.02 4.07 4.25 4.43 4.62 4.74 5.00 0.02 0.02 0.02 0.03 0.03 0.05 3.94 4.05 4.17 4.28 4.35 4.48 0.02 0.02 0.02 0.03 0.04 0.06 3.86 3.99 4.13 4.26 4.35 4.53 0.01 0.01 0.01 0.02 0.02 0.03 3.87 4.04 4.20 4.37 4.47 4.69 0.02 0.01 0.01 0.02 0.02 0.03 3.90 4.10 4.32 4.54 4.69 5.01 0.01 0.02 0.02 0.03 0.04 0.06 3.78 3.90 4.03 4.16 4.24 4.40 0.07 0.03 0.06 0.12 0.16 0.24 3.96 4.09 4.21 4.31 4.37 4.47 0.10 0.06 0.11 0.17 0.21 0.27 DATA SOURCE: U.S. Department of Health and Human Services, National Center for Health Statistics, Third National Health and Nutrition Examination Survey (NHANES III), 1988–1994. SOURCE: ENVIRON International Corporation and Iowa State University Department of Statistics (2003).

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Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate TABLE J-2 Mean and Selected Percentiles of Serum Sodium (mmol/L): United States, NHANES III, 1988–1994 Sex/Age Categorya n Mean Percentile 1st 5th 10th M, 14–18 y 1,196 141.4 138.6 139.5 139.9 Standard error   0.1 0.2 0.2 0.1 M, 19–50 y 4,277 141.7 138.7 139.7 140.1 Standard error   0.1 0.2 0.2 0.1 M, 51–70 y 1,953 141.5 137.9 139.1 139.7 Standard error   0.1 0.2 0.2 0.2 M, 71+ y 1,328 141.6 137.9 139.1 139.7 Standard error   0.1 0.2 0.2 0.2 F, 14–18 y 1,269 140.8 136.4 138.3 138.9 Standard error   1.3 8.8 3.4 2.3 F, 19–50 y 4,675 140.9 137.5 138.4 139.0 Standard error   0.1 0.2 0.2 0.1 F, 51–70 y 2,046 141.5 136.4 138.3 139.1 Standard error   0.1 0.6 0.3 0.3 F, 71+ y 1,489 141.3 135.6 137.7 138.6 Standard error   0.2 0.4 0.3 0.3 Pregnant 323 138.8 134.5 136.3 137.0 Standard error   0.2 0.8 0.5 0.4 Lactating 100 141.9 139.3 140.2 140.6 Standard error   0.3 0.5 0.3 0.3 a M = male, F = female (not pregnant and/or lactating). NOTE: Data were adjusted using the Iowa State University method to provide estimates of usual serum potassium concentrations. Means, standard errors, and percentiles were obtained using C-Side. Standard errors were estimated via jackknife replication. Each standard error has 49 degrees of freedom. Females who had “blank but applicable” pregnancy or lactating status data or who responded “I don’t know” to questions on pregnancy or lactating status were excluded from the analysis.

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Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate 25th 50th 75th 90th 95th 99th 140.6 141.4 142.1 142.8 143.3 144.3 0.1 0.1 0.1 0.1 0.2 0.3 140.9 141.7 142.5 143.3 143.7 144.7 0.1 0.1 0.1 0.1 0.1 0.1 140.6 141.5 142.5 143.3 143.8 144.7 0.1 0.1 0.1 0.1 0.1 0.2 140.7 141.6 142.6 143.4 144.0 145.0 0.1 0.1 0.1 0.1 0.1 0.2 139.9 140.8 141.8 142.5 143.0 144.0 1.6 1.1 0.4 0.2 0.2 0.3 139.9 140.8 141.8 142.7 143.4 144.5 0.1 0.1 0.1 0.1 0.1 0.3 140.3 141.5 142.7 143.8 144.4 145.7 0.2 0.1 0.2 0.2 0.2 0.3 140.1 141.4 142.6 143.8 144.6 146.2 0.2 0.2 0.2 0.2 0.3 0.5 137.9 138.7 139.8 140.9 141.5 142.7 0.2 0.2 0.2 0.3 0.4 0.4 141.3 142.0 142.6 143.2 143.5 144.0 0.3 0.3 0.3 0.2 0.2 0.3 DATA SOURCE: U.S. Department of Health and Human Services, National Center for Health Statistics, Third National Health and Nutrition Examination Survey (NHANES III), 1988–1994. SOURCE: ENVIRON International Corporation and Iowa State University Department of Statistics (2003).

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Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate TABLE J-3 Mean and Selected Percentiles of Serum Chloride (mmol/L): United States, NHANES III, 1988–1994 Sex/Age Categorya n Mean Percentile 1st 5th 10th M, 14–18 y 1,196 104.1 100.4 101.5 102.1 Standard error   0.2 0.6 0.5 0.4 M, 19–50 y 4,277 104.5 99.9 101.3 102.0 Standard error   0.2 0.3 0.3 0.3 M, 51–70 y 1,953 104.3 97.4 99.8 101.0 Standard error   0.2 0.5 0.6 0.5 M, 71+ y 1,328 104.1 97.3 99.6 100.8 Standard error   0.2 0.8 0.4 0.3 F, 14–18 y 1,269 104.8 100.4 101.7 102.4 Standard error   0.2 0.6 0.4 0.3 F, 19–50 y 4,675 105.0 100.0 101.5 102.4 Standard error   0.2 0.4 0.3 0.3 F, 51–70 y 2,046 104.1 97.0 99.4 100.6 Standard error   0.2 0.5 0.4 0.4 F, 71+ y 1,489 103.7 95.9 98.7 100.0 Standard error   0.2 1.0 0.5 0.4 Pregnant 323 105.1 100.8 102.2 102.9 Standard error   0.4 1.9 1.3 1.0 Lactating 100 105.3 101.2 102.5 103.2 Standard error   0.5 2.8 1.8 1.4 a M = male, F = female (not pregnant and/or lactating). NOTE: Data were adjusted using the Iowa State University method to provide estimates of usual serum potassium concentrations. Means, standard errors, and percentiles were obtained using C-Side. Standard errors were estimated via jackknife replication. Each standard error has 49 degrees of freedom. Females who had “blank but applicable” pregnancy or lactating status data or who responded “I don’t know” to questions on pregnancy or lactating status were excluded from the analysis.

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Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate 25th 50th 75th 90th 95th 99th 103.0 104.1 105.1 106.0 106.6 107.6 0.3 0.2 0.2 0.3 0.4 0.5 103.2 104.5 105.8 106.9 107.6 108.9 0.3 0.2 0.2 0.2 0.2 0.4 102.7 104.4 106.0 107.4 108.3 109.9 0.3 0.3 0.3 0.2 0.3 0.4 102.5 104.2 105.8 107.3 108.2 109.9 0.2 0.2 0.2 0.3 0.4 0.8 103.6 104.8 106.0 107.1 107.7 108.8 0.3 0.2 0.3 0.3 0.3 0.4 103.7 105.1 106.5 107.6 108.3 109.5 0.3 0.2 0.2 0.2 0.2 0.4 102.4 104.2 105.9 107.5 108.4 110.1 0.2 0.3 0.3 0.3 0.3 0.4 102.0 103.8 105.6 107.1 108.0 109.6 0.3 0.3 0.2 0.3 0.4 0.5 104.0 105.1 106.2 107.2 107.9 109.1 0.6 0.4 0.6 0.9 1.2 1.7 104.3 105.4 106.4 107.2 107.6 108.4 0.8 0.5 0.7 1.0 1.3 1.8 DATA SOURCE: U.S. Department of Health and Human Services, National Center for Health Statistics, Third National Health and Nutrition Examination Survey (NHANES III), 1988–1994. SOURCE: ENVIRON International Corporation and Iowa State University Department of Statistics (2003).