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Sodium and potassium intakes in a representative population sample: estimation from 24 h urine collections known to be complete in a Cambridgeshire village

Published online by Cambridge University Press:  09 March 2007

D. R. R. Williams
Affiliation:
University Department of Community Medicine, Addenbrooke's Hospital, Cambridge CB2 2QQ
Sheila A. Bingham
Affiliation:
Medical Research Council Dunn Clinical Nutrition Centre, 100 Tennis Court Road, Cambridge CB2 1QL
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Abstract

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1. A representative sample of eighty men aged 25–44 years from a Cambridgeshire village, each carried out one 24-h urine collection which was analysed for sodium, potassium, creatinine and urea content. The completeness of the collections was verified using oral doses of p-aminobenzoic acid (PABA; the PABA check test).

2. In the seventy-one collections shown to be complete, the average 24 h excretion of Na was 172 mmol and the average 24 h excretion of K was 74 mmol.

3. Fifty-one of these men's wives also made complete 24 h collections. The average content of these was 128 mmol Na and 61 mmol K.

4. Self reports and creatinine index would have identified as incomplete only 29 and 14% respectively of collections so judged by PABA.

5. Average excretion of 150 mmol Na/d was similar to estimated intakes of 140–167 mmol/d from the National Food Survey (Bull & Buss, 1980).

Type
Papers of direct relevance to Clinical and Human Nutrition
Copyright
Copyright © The Nutrition Society 1986

References

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