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G
U.S. Water Intake and Serum Osmolality Data from the Third National Health and Nutrition Examination Survey, 1988–1994

TABLE G-1 Estimates of Serum Osmolality by Decile of Mean Total Water Intake: United States, NHANES III, 1988–1994

Sex/Age Categorya

Decile of Total Water Intakeb

n

Total Water Intake (mL/d)

Serum Osmolality (mmol/kg)

Mean

Median

Mean

Median

M, 12–18 y

1

94

1,364

1,412

278

279

 

2

87

1,837

1,857

279

281

3

105

2,146

2,138

277

277

4

81

2,489

2,492

278

279

5

86

2,793

2,789

279

279

6

82

3,128

3,149

279

278

7

80

3,511

3,490

279

279

8

57

3,953

3,948

278

279

9

70

4,499

4,497

279

282

10

96

6,460

5,877

281

281

M, 19–50 y

1

380

1,694

1,763

279

279

 

2

336

2,322

2,339

279

278

3

287

2,667

2,660

281

282

4

278

2,984

2,974

280

281

5

296

3,310

3,308

280

282

6

307

3,691

3,692

280

279



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OCR for page 534
Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate G U.S. Water Intake and Serum Osmolality Data from the Third National Health and Nutrition Examination Survey, 1988–1994 TABLE G-1 Estimates of Serum Osmolality by Decile of Mean Total Water Intake: United States, NHANES III, 1988–1994 Sex/Age Categorya Decile of Total Water Intakeb n Total Water Intake (mL/d) Serum Osmolality (mmol/kg) Mean Median Mean Median M, 12–18 y 1 94 1,364 1,412 278 279   2 87 1,837 1,857 279 281 3 105 2,146 2,138 277 277 4 81 2,489 2,492 278 279 5 86 2,793 2,789 279 279 6 82 3,128 3,149 279 278 7 80 3,511 3,490 279 279 8 57 3,953 3,948 278 279 9 70 4,499 4,497 279 282 10 96 6,460 5,877 281 281 M, 19–50 y 1 380 1,694 1,763 279 279   2 336 2,322 2,339 279 278 3 287 2,667 2,660 281 282 4 278 2,984 2,974 280 281 5 296 3,310 3,308 280 282 6 307 3,691 3,692 280 279

OCR for page 534
Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate Sex/Age Categorya Decile of Total Water Intakeb n Total Water Intake (mL/d) Serum Osmolality (mmol/kg) Mean Median Mean Median   7 312 4,133 4,122 280 281 8 276 4,727 4,689 280 280 9 304 5,555 5,502 280 280 10 315 7,934 7,279 280 281 M, 51–70 y 1 184 1,635 1,721 280 281   2 146 2,168 2,149 282 283 3 156 2,570 2,593 281 281 4 134 2,907 2,894 281 281 5 105 3,172 3,174 283 283 6 125 3,465 3,469 281 282 7 124 3,798 3,798 280 280 8 119 4,319 4,337 280 280 9 128 5,162 5,141 281 283 10 95 7,203 6,721 281 282 M, 71+ y 1 106 1,444 1,523 283 283   2 101 1,895 1,895 283 283 3 83 2,208 2,216 283 284 4 87 2,455 2,452 284 284 5 74 2,707 2,715 283 284 6 66 2,976 2,980 282 284 7 68 3,218 3,225 281 281 8 83 3,597 3,572 283 284 9 67 4,129 4,151 283 283 10 73 5,450 5,247 281 280 F, 12–18 y 1 103 943 942 278 279   2 106 1,444 1,469 278 279 3 81 1,696 1,685 276 276 4 105 1,964 1,961 276 277 5 105 2,202 2,173 276 276 6 83 2,492 2,512 278 279 7 100 2,719 2,711 278 279 8 84 3,069 3,085 277 278 9 104 3,737 3,672 278 279 10 83 5,525 5,279 277 278 F, 19–50 y 1 429 1,249 1,315 277 277   2 369 1,727 1,735 277 278 3 350 2,033 2,015 277 278 4 347 2,309 2,299 276 277 5 347 2,612 2,603 277 278 6 340 2,923 2,925 277 278 7 320 3,270 3,257 277 277 8 306 3,725 3,719 278 279

OCR for page 534
Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate 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).