Accuracy and usefulness of select methods for assessing complete collection of 24-hour urine: a systematic review.

John, Katherine A, Cogswell, Mary E, Campbell, Norm R, Nowson, Caryl, Legetic, Branka, Hennis, Anselm J M and Patel, Sheena M 2016, Accuracy and usefulness of select methods for assessing complete collection of 24-hour urine: a systematic review., Journal of clinical hypertension, vol. 18, no. 5, pp. 456-467, doi: 10.1111/jch.12763.

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Title Accuracy and usefulness of select methods for assessing complete collection of 24-hour urine: a systematic review.
Author(s) John, Katherine A
Cogswell, Mary E
Campbell, Norm R
Nowson, CarylORCID iD for Nowson, Caryl
Legetic, Branka
Hennis, Anselm J M
Patel, Sheena M
Journal name Journal of clinical hypertension
Volume number 18
Issue number 5
Start page 456
End page 467
Total pages 12
Publisher Wiley
Place of publication Hoboken, N. J.
Publication date 2016-05
ISSN 1751-7176
Summary Twenty-four-hour urine collection is the recommended method for estimating sodium intake. To investigate the strengths and limitations of methods used to assess completion of 24-hour urine collection, the authors systematically reviewed the literature on the accuracy and usefulness of methods vs para-aminobenzoic acid (PABA) recovery (referent). The percentage of incomplete collections, based on PABA, was 6% to 47% (n=8 studies). The sensitivity and specificity for identifying incomplete collection using creatinine criteria (n=4 studies) was 6% to 63% and 57% to 99.7%, respectively. The most sensitive method for removing incomplete collections was a creatinine index <0.7. In pooled analysis (≥2 studies), mean urine creatinine excretion and volume were higher among participants with complete collection (P<.05); whereas, self-reported collection time did not differ by completion status. Compared with participants with incomplete collection, mean 24-hour sodium excretion was 19.6 mmol higher (n=1781 specimens, 5 studies) in patients with complete collection. Sodium excretion may be underestimated by inclusion of incomplete 24-hour urine collections. None of the current approaches reliably assess completion of 24-hour urine collection.
Language eng
DOI 10.1111/jch.12763
Field of Research 111199 Nutrition and Dietetics not elsewhere classified
110199 Medical Biochemistry and Metabolomics not elsewhere classified
110299 Cardiovascular Medicine and Haematology not elsewhere classified
110399 Clinical Sciences not elsewhere classified
Socio Economic Objective 920119 Urogenital System and Disorders
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Wiley
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