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Sex/Age Categorya

Decile of Total Water Intakeb

n

Total Water Intake (mL/d)

Serum Osmolality (mmol/kg)

Mean

Median

Mean

Median

 

9

281

4,298

4,267

277

277

10

353

6,163

5,426

277

278

F, 51–70 y

1

174

1,321

1,382

281

281

 

2

135

1,836

1,854

280

281

3

147

2,102

2,117

280

280

4

130

2,388

2,406

280

281

5

134

2,682

2,682

281

282

6

151

2,969

2,971

280

281

7

135

3,301

3,291

281

281

8

127

3,704

3,720

280

279

9

129

4,230

4,216

281

281

10

141

5,807

5,331

279

280

F, 71+ y

1

110

1,191

1,242

282

283

 

2

102

1,649

1,656

282

282

3

101

1,957

1,953

282

282

4

87

2,193

2,190

281

281

5

79

2,382

2,378

283

283

6

92

2,589

2,591

282

283

7

84

2,883

2,882

283

282

8

99

3,173

3,152

281

281

9

79

3,599

3,601

280

281

10

88

4,852

4,646

282

283

a M = male, F = female.

b Total water intake reflects the sum of drinking water and the water content of foods and beverages.

NOTE: Data are limited to individuals who provided a valid response to a question on usual plain drinking water intake, provided a complete and reliable 24-hour dietary recall, and had a serum osmolality measurement. Females who were pregnant, lactating, or 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.

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 (2002).



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