Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate

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Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate (2005)
Food and Nutrition Board (FNB)

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. "Appendix J: Serum Electrolyte Concentrations NHANES III, 1988-94." Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate. Washington, DC: The National Academies Press, 2005.

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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 Category^a	n	Mean	Percentile
Sex/Age Category^a	n	Mean	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.