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TABLE D-5 Mean and Selected Percentiles for Usual Daily Intake of Potassium (mg): United States, NHANES III, 1988–1994

Sex/Age Categorya

n

Mean

Percentile

1st

5th

10th

Both sexes, 2–6 mo

793

995

339

506

591

Both sexes, 7–12 mo

827

1,543

521

736

878

Both sexes, 1–3 y

3,309

1,970

590

869

1,071

Both sexes, 4–8 y

3,448

2,189

1,576

1,741

1,832

Standard error

 

22

508

381

308

M, 9–13 y

1,219

2,622

1,335

1,653

1,836

Standard error

 

53

192

155

136

M, 14–18 y

909

3,125

2,319

2,533

2,653

Standard error

 

110

1,140

868

707

M, 19–30 y

1,902

3,374

2,270

2,554

2,715

Standard error

 

56

405

320

267

M, 31–50 y

2,533

3,432

1,505

1,954

2,215

Standard error

 

43

114

106

88

M, 51–70 y

1,942

3,314

1,252

1,733

2,022

Standard error

 

55

68

60

56

M, 71+ y

1,255

2,918

1,258

1,661

1,897

Standard error

 

45

107

85

80

F, 9–13 y

1,216

2,243

1,182

1,454

1,608

Standard error

 

60

50

83

88

F, 14–18 y

949

2,120

796

1,086

1,264

Standard error

 

67

106

112

109

F, 19–30 y

1,901

2,233

1,310

1,547

1,681

Standard error

 

31

206

163

136

F, 31–50 y

2,939

2,489

1,170

1,483

1,669

Standard error

 

39

94

81

73

F, 51–70 y

2,065

2,506

1,120

1,451

1,646

Standard error

 

30

67

54

47

F, 71+ y

1,368

2,407

954

1,294

1,498

Standard error

 

42

65

58

53

F, Pregnant

346

2,905

1,245

1,617

1,843

Standard error

 

143

382

340

305

F, Lactating

99

3,636

1,304

1,984

2,355

Standard error

 

255

952

755

682

P/L

440

3,056

1,502

1,881

2,104

Standard error

 

131

511

416

352

All individuals

28,575

2,705

1,107

1,461

1,677

Standard error

 

19

33

29

29

All individuals (+P/L)

29,015

2,712

1,106

1,461

1,678

Standard error

 

19

33

30

30

a M = male, F = female, P/L = pregnant and/or lactating.

NOTE: Data are limited to individuals who provided a complete and reliable 24-hour dietary recall on Day 1. The intake distributions for infants 2–6 and 7–12 months and children 1–3 years of age are unadjusted. Means and percentiles for these groups were computed using SAS PROC UNIVARIATE. For all other groups, data were adjusted using the Iowa State University method. 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. Infants and children fed human milk and females who had “blank but applicable” pregnancy and lactating status data or who responded “I don’t know” to questions on pregnancy and lactating status were excluded from all analyses. Females who were both pregnant and lactating were included in both the Pregnant and Lactating categories. The sample sizes for the Pregnant and Lactating categories were very small, so their estimates of usual intake distributions are not reliable.



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