Normalization of protein intake by body weight and the associations of protein intake with nutritional status and survival.

@article{citeulike:2938501, abstract = {OBJECTIVE: To examine the associations of total protein intake (TPI) and dietary protein intake (DPI) with baseline nutrition and subsequent mortality. DESIGN: Retrospective analysis of incident dialysis patients. SETTING: National cohort from The United States Renal Data System data. PATIENTS: Incident dialysis patients (n = 5,059) with blood urea nitrogen (BUN) and urea clearances reported on form 2728. METHODS: TPI was calculated from BUN and urea clearance. DPI was defined as TPI divided by weight. Urinary creatinine (UCr) calculated from creatinine clearance and serum creatinine was used as a marker of muscle mass. The associations of TPI and DPI with each of serum albumin < or = 3.3 g/dL (50th percentile), UCr < or = 0.56 g/d (25th percentile), body mass index < 18.5, and death were examined. RESULTS: Compared with patients in the highest quartile of TPI (> 60.2 g/d), those in the lowest quartile (< or = 32.4 g/d) had 1.89-fold higher odds (P < .001) of low serum albumin, 10.22-fold higher odds (P < .001) of low UCr, and 3.83-fold higher odds (P < .001) of low body mass index in multivariable logistic regression models, and an 18\% increase (P < .001) in hazard of death. Compared with patients with DPI > 1.2 g/kg/d, those with DPI < 0.8 g/kg/d had nonsignificantly higher odds of low serum albumin, 2.38-fold higher odds (P < .001) of low UCr, and 0.44-fold lower odds (P < .001) of low body mass index, and a 15\% (P = .04) decrease in hazard of death. CONCLUSIONS: Higher TPI is associated with better nutrition at baseline and subsequent survival. Normalization of TPI by body weight provides contradictory information on nutritional status as well as survival.}, address = {Renal Section, Salt Lake VA Healthcare System, Salt Lake City, UT, USA. Srinivasan.beddhu@hsc.utah.edu}, author = {Beddhu, S. and Ramkumar, N. and Pappas, L. M. }, citeulike-article-id = {2938501}, doi = {10.1053/j.jrn.2005.07.001}, issn = {1532-8503}, journal = {Journal of renal nutrition : the official journal of the Council on Renal Nutrition of the National Kidney Foundation}, keywords = {hd, mortality, nutrition}, month = {October}, number = {4}, pages = {387--397}, posted-at = {2008-06-28 03:56:21}, priority = {2}, title = {Normalization of protein intake by body weight and the associations of protein intake with nutritional status and survival.}, url = {http://dx.doi.org/10.1053/j.jrn.2005.07.001}, volume = {15}, year = {2005} }

TY - JOUR ID - citeulike:2938501 L3 - citeulike-article-id:2938501 TI - Normalization of protein intake by body weight and the associations of protein intake with nutritional status and survival. JF - Journal of renal nutrition : the official journal of the Council on Renal Nutrition of the National Kidney Foundation VL - 15 IS - 4 SP - 387 EP - 397 AD - Renal Section, Salt Lake VA Healthcare System, Salt Lake City, UT, USA. Srinivasan.beddhu@hsc.utah.edu SN - 1532-8503 N2 - OBJECTIVE: To examine the associations of total protein intake (TPI) and dietary protein intake (DPI) with baseline nutrition and subsequent mortality. DESIGN: Retrospective analysis of incident dialysis patients. SETTING: National cohort from The United States Renal Data System data. PATIENTS: Incident dialysis patients (n = 5,059) with blood urea nitrogen (BUN) and urea clearances reported on form 2728. METHODS: TPI was calculated from BUN and urea clearance. DPI was defined as TPI divided by weight. Urinary creatinine (UCr) calculated from creatinine clearance and serum creatinine was used as a marker of muscle mass. The associations of TPI and DPI with each of serum albumin < or = 3.3 g/dL (50th percentile), UCr < or = 0.56 g/d (25th percentile), body mass index < 18.5, and death were examined. RESULTS: Compared with patients in the highest quartile of TPI (> 60.2 g/d), those in the lowest quartile (< or = 32.4 g/d) had 1.89-fold higher odds (P < .001) of low serum albumin, 10.22-fold higher odds (P < .001) of low UCr, and 3.83-fold higher odds (P < .001) of low body mass index in multivariable logistic regression models, and an 18% increase (P < .001) in hazard of death. Compared with patients with DPI > 1.2 g/kg/d, those with DPI < 0.8 g/kg/d had nonsignificantly higher odds of low serum albumin, 2.38-fold higher odds (P < .001) of low UCr, and 0.44-fold lower odds (P < .001) of low body mass index, and a 15% (P = .04) decrease in hazard of death. CONCLUSIONS: Higher TPI is associated with better nutrition at baseline and subsequent survival. Normalization of TPI by body weight provides contradictory information on nutritional status as well as survival. KW - hd KW - mortality KW - nutrition AU - Beddhu, S AU - Ramkumar, N AU - Pappas, LM PY - 2005/10// UR - http://dx.doi.org/10.1053/j.jrn.2005.07.001 ER -