The Validity of Predictive Equations to Estimate 24-Hour Sodium Excretion: The MESA and CARDIA Urinary Sodium Study.
We examined the population distribution of urinary sodium concentrations and the validity of existing equations predicting 24-hour sodium excretion from a single spot urine sample among older adults with and without hypertension. In 2013, 24-hour urine collections were obtained from 554 participants...
| Publicado en: | American Journal of Epidemiology Vol. 186; no. 2; pp. 149 - 160 |
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| Autores principales: | , , , , , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Oxford University Press / USA
07/15/2017
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=124137883&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 124137883 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00029262 1X1 jtl: American Journal of Epidemiology issn: 00029262 maglogo: N pubinfo: dt: 07/15/2017 vid: 186 iid: 2 pid: 622 pub: Oxford University Press / USA artinfo: ui: 124137883 124137883 124137883 10.1093/aje/kwx056 124137883 ppf: 149 ppct: 11 formats: tig: atl: The Validity of Predictive Equations to Estimate 24-Hour Sodium Excretion: The MESA and CARDIA Urinary Sodium Study. aug: au: Allen, Norrina B. Lihui Zhao Loria, Catherine M. Van Horn, Linda Chia-Yih Wang Pfeiffer, Christine M. Cogswell, Mary E. Wright, Jacqueline Kiang Liu affil: Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois sug: subj: Predictive Value of Tests Predictive Validity Sodium Urine Hypertension Human Male Female Middle Age Aged Ethnic Groups Blood Pressure Middle Aged: 45-64 years Aged: 65+ years Male Female ab: We examined the population distribution of urinary sodium concentrations and the validity of existing equations predicting 24-hour sodium excretion from a single spot urine sample among older adults with and without hypertension. In 2013, 24-hour urine collections were obtained from 554 participants in the Multi-Ethnic Study of Atherosclerosis and the Coronary Artery Risk Development in Young Adults study, who were aged 45-79 years and of whom 56%were female, 58%were African American, and 54%had hypertension, in Chicago, Illinois. One-third provided a second 24-hour collection. Four timed (overnight, morning, afternoon, and evening) spot urine specimens and the 24-hour collection were analyzed for sodium and creatinine concentrations. Mean 24-hour sodium excretion was 3,926 (standard deviation (SD), 1,623) mg for white men, 2,480 (SD, 1,079) mg for white women, 3,454 (SD, 1,651)mg for African-Americanmen, and 3,397 (SD, 1,641)mg for African-American women, and did not differ significantly by hypertensive status.Mean bias (difference) in predicting 24-hour sodiumexcretion fromthe timed spot urine specimens ranged from -182 (95% confidence interval: -285, -79) to 1,090 (95% confidence interval: 966, 1,213) mg/day overall. Although the Tanaka equation using the evening specimen produced the least bias overall, no single equation worked well across subgroups of sex and race/ethnicity. A single spot urine sample is not a valid indicator of individual sodiumintake. New equations are needed to accurately estimate 24-hour sodiumexcretion for older adults. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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