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Cited by 339

The DOI matches its Crossref record; 37 of the 37 references it cites were found in a registry or an index.

Is controlling phosphorus by decreasing dietary protein intake beneficial or harmful in persons with chronic kidney disease?

Open access
Shinaberger, Christian S, Greenland, Sander, Kopple, Joel D, Van Wyck, David, Mehrotra, Rajnish, Kovesdy, Csaba P, Kalantar-Zadeh, Kamyar·2008·The American Journal of Clinical Nutrition

Abstract

Background Dietary restrictions to control serum phosphorus, recommended routinely to individuals with chronic kidney disease, are usually associated with a reduction in protein intake. This may lead to protein-energy wasting and poor survival. We hypothesized that decline in serum phosphorus with concomitant decline in protein intake is associated with increased death risk. Methods In a 3-year (7/2001–6/2004) cohort of 30,075 prevalent maintenance hemodialysis (MHD) patients, we examined changes in serum phosphorus and in normalized protein nitrogen appearance (nPNA), a surrogate of dietary protein intake, during the first 6 months and subsequent mortality. Four groups of MHD patients were defined based on the direction of the changes in serum phosphorus and nPNA. Results Baseline phosphorus had a J-shaped association with mortality, whereas higher baseline nPNA was linearly associated with greater survival. Compared to MHD patients whose serum phosphorus and nPNA both rose over 6 months, those whose serum phosphorus decreased but nPNA increased had the greatest survival with a case-mix adjusted death risk ratio (RR) of 0.90 (95% confidence limits: 0.86, 0.95, p<0.001), whereas those whose phosphorus increased but nPNA decreased or those whose phosphorus and nPNA both decreased had worse mortality with RR of 1.11 (1.05,1.17) and 1.06 (1.01,1.12), respectively (P <0.001 and 0.02). Conclusions The risk of controlling serum phosphorus by restricting dietary protein intake may outweigh its benefit and lead to increased mortality. Additional studies including randomized controlled trials need to examine whether non-dietary control of phosphorus or restricting non-protein sources of phosphorus is safer and more effective.

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Metadata

Authors
Shinaberger, C. S., Greenland, S., Kopple, J. D., Van Wyck, D., Mehrotra, R., Kovesdy, C. P., & Kalantar-Zadeh, K.
Venue
The American Journal of Clinical Nutrition
Publisher
Elsevier BV
Published
2008-12
Volume
88
Issue
6
Pages
1511-1518
ISSN
0002-9165 (ISSN-L)
OpenAlex
W2130381721
Cited by
339
References
37
FWCI
12.00
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Is controlling phosphorus by decreasing dietary protein intake beneficial or harmful in persons with chronic kidney disease? https://app.cochat.ai/papers/10.3945/ajcn.2008.26665
The paper
Shinaberger, C. S., Greenland, S., Kopple, J. D., Van Wyck, D., Mehrotra, R., Kovesdy, C. P., & Kalantar-Zadeh, K. (2008). Is controlling phosphorus by decreasing dietary protein intake beneficial or harmful in persons with chronic kidney disease? The American Journal of Clinical Nutrition. https://doi.org/10.3945/ajcn.2008.26665

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