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The Impact of Protein Intake on Renal Function Decline in Women with Normal Renal Function or Mild Renal Insufficiency

Eric L. Knight, MD, MPH; Meir J. Stampfer, MD, DrPH; Susan E. Hankinson, RN, ScD; Donna Spiegelman, ScD; and Gary C. Curhan, MD, ScD
[+] Article and Author Information

From Brigham and Women's Hospital, Harvard Medical School; and Massachusetts General Hospital, Harvard School of Public Health, Boston, Massachusetts.


Acknowledgments: The authors thank the participants of the Nurses' Health Study. They also thank Elaine Coughlan for carefully reviewing the statistical programming and manuscript content, Sue Malspeis for helping with the programming necessary to perform the measurement-error adjustment, Diane Feskanich for helping to interpret the food composition tables, Melissa Francis for assisting with manuscript preparation, and Walter Willett for reviewing the manuscript and making helpful suggestions.

Grant Support: By the National Institutes of Health (T32DK0740, T32DK07791, DK52866, CA87969, and HL34594).

Potential Financial Conflicts of Interest: None disclosed.

Requests for Single Reprints: Eric L. Knight, MD, MPH, Channing Laboratory, Nurses' Health Study, 3rd Floor, 181 Longwood Avenue, Boston, MA 02115; e-mail, elknight@partners.org.

Current Author Addresses: Drs. Knight, Hankinson, and Curhan: Channing Laboratory, Department of Medicine, Harvard Medical School and Brigham and Women's Hospital, 181 Longwood Avenue, Boston, MA 02115.

Drs. Stampfer and Spiegelman: Department of Epidemiology, Harvard School of Public Health, 677 Huntington Avenue, Boston, MA 02115.

Author Contributions: Conception and design: E.L. Knight, G.C. Curhan.

Analysis and interpretation of the data: E.L. Knight, M.J. Stampfer, S.E. Hankinson, D. Spiegelman, G.C. Curhan.

Drafting of the article: E.L. Knight, G.C. Curhan.

Critical revision of the article for important intellectual content: E.L. Knight, M.J. Stampfer, S.E. Hankinson, D. Spiegelman, G.C. Curhan.

Final approval of the article: E.L. Knight, M.J. Stampfer, S.E. Hankinson, D. Spiegelman, G.C. Curhan.

Provision of study materials or patients: G.C. Curhan.

Statistical expertise: E.L. Knight, M.J. Stampfer, D. Spiegelman, G.C. Curhan.

Obtaining of funding: G.C. Curhan.

Administrative, technical, or logistic support: E.L. Knight, M.J. Stampfer, S.E. Hankinson.

Collection and assembly of data: E.L. Knight, S.E. Hankinson, G.C. Curhan.


Ann Intern Med. 2003;138(6):460-467. doi:10.7326/0003-4819-138-6-200303180-00009
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Demographic, laboratory, and dietary information are presented in Table 1 according to baseline estimated GFR. The estimated mean GFR was lower at baseline and changed less during the study period than did the estimated creatinine clearance. Participants in the mild renal insufficiency group were 2 years older than those in the normal renal function group, and both groups had similar total protein intake. Absolute decline in estimated GFR was less pronounced in the renal insufficiency group than in the group with normal renal function.

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Summary for Patients

The Effect of Dietary Protein Intake on Kidney Function in Women with Normal or Mildly Abnormal Kidneys

The summary below is from the full report titled “The Impact of Protein Intake on Renal Function Decline in Women with Normal Renal Function or Mild Renal Insufficiency.” It is in the 18 March 2003 issue of Annals of Internal Medicine (volume 138, pages 460-467). The authors are EL Knight, MJ Stampfer, SE Hankinson, D Spiegelman, and GC Curhan.

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