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Sex/Age Categorya

n

Mean

Percentile

1st

5th

10th

F, 19–30 y

1,885

2,838

1,034

1,399

1,628

Standard error

 

41

64

55

48

F, 31–50 y

2,906

3,101

1,202

1,589

1,829

Standard error

 

43

56

52

46

F, 51–70 y

2,002

3,024

1,281

1,649

1,877

Standard error

 

49

96

56

49

F, 71+ y

1,317

2,617

1,227

1,540

1,729

Standard error

 

35

70

59

52

Pregnant

341

3,118

1,363

1,692

1,904

Standard error

 

139

183

146

151

Lactating

98

3,791

1,600

2,173

2,500

Standard error

 

171

233

214

207

P/L

434

3,277

1,527

1,924

2,163

Standard error

 

122

183

167

157

All individuals

27,744

3,006

968

1,343

1,589

Standard error

 

24

16

21

19

All individuals (+P/L)

28,178

3,011

971

1,347

1,594

Standard error

 

24

15

22

19

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

NOTE: Total water intake reflects the sum of plain drinking (tap) water and the water content of all foods and beverages consumed. Data are limited to individuals who provided a valid response to the question “How much plain drinking water do you usually drink in a 24-hour period? Include only plain tap or spring water,” and 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 to provide estimates of usual intake. 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 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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