NDLI: Associations of diet with albuminuria and kidney function decline.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Lin, Julie Hu, Frank B. Curhan, Gary C.
Description	Country affiliation: United States Author Affiliation: Lin J ( Renal Division, Channing Laboratory, Department of Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA. jlin11@partners.org)
Abstract	BACKGROUND AND OBJECTIVES: Sparse longitudinal data exist on how diet influences microalbuminuria and estimated GFR (eGFR) decline in people with well-preserved kidney function. DESIGN, SETTINGS, PARTICIPANTS, & MEASUREMENTS: Of the 3348 women participating in the Nurses' Health Study who had data on urinary albumin to creatinine ratio in 2000, 3296 also had data on eGFR change between 1989 and 2000. Cumulative average intake of nutrients over 14 years was derived from semiquantitative food frequency questionnaires answered in 1984, 1986, 1990, 1994, and 1998. Microalbuminuria presence and eGFR decline > or = 30% were the outcomes of interest. RESULTS: Compared with the lowest quartile, the highest quartile of animal fat (odds ratio (OR): 1.72; 95% confidence interval (CI): 1.12 to 2.64) and two or more servings of red meat per week (OR: 1.51; 95% CI: 1.01 to 2.26) were directly associated with microalbuminuria. After adjustment for other nutrients individually associated with eGFR decline > or = 30%, only the highest quartile of sodium intake remained directly associated (OR: 1.52; 95% CI: 1.10 to 2.09), whereas beta-carotene appeared protective (OR: 0.62, 95% CI: 0.43 to 0.89). Results did not vary by diabetes status for microalbuminuria and eGFR outcomes or in those without hypertension at baseline for eGFR decline. No significant associations were seen for other types of protein, fat, vitamins, folate, fructose, or potassium. CONCLUSIONS: Higher dietary intake of animal fat and two or more servings per week of red meat may increase risk for microalbuminuria. Lower sodium and higher beta-carotene intake may reduce risk for eGFR decline.
File Format	HTM / HTML
ISSN	15559041
e-ISSN	1555905X
DOI	10.2215/CJN.08001109
Journal	Clinical Journal of the American Society of Nephrology
Issue Number	5
Volume Number	5
Language	English
Publisher	American Society of Nephrology
Publisher Date	2010-05-01
Publisher Place	United States
Access Restriction	Open
Subject Keyword	Chi-square Distribution Research Support, N.i.h., Extramural Albuminuria Kidney Meat Time Factors Etiology Dietary Proteins Beta Carotene Dietary Fats Nurses Questionnaires Diet, Sodium-restricted Odds Ratio Adverse Effects Glomerular Filtration Rate Risk Assessment Prevention & Control Risk Factors Discipline Nephrology Feeding Behavior Logistic Models Administration & Dosage Sodium Chloride, Dietary Disease Progression Physiopathology Diet Health Surveys
Content Type	Text
Resource Type	Article
Subject	Transplantation Critical Care and Intensive Care Medicine Nephrology Epidemiology

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