Nephrol Dial Transplant (2013) 28: 2146–2155 doi: 10.1093/ndt/gft213 Advance Access publication 5 June 2013 Serum creatinine level, a surrogate of muscle mass, predicts mortality in peritoneal dialysis patients 1 Jongha Park1,2, Harold Simmons Center for Kidney Disease Research and Epidemiology, Division of Nephrology and Hypertension, University 3 Rajnish Mehrotra , of California Irvine, School of Medicine, Orange, CA, USA, Connie M. Rhee1,4, 2Division of Nephrology, Ulsan University Hospital, University of Miklos Z. Molnar1,5,6, Ulsan College of Medicine, Ulsan, Republic of Korea, 3Harborview Medical Center, University of Washington, Seattle, WA, 1,7 Lilia R. Lukowsky , USA, Sapna S. Patel1,8, 4Division of Nephrology, Brigham and Women’s Hospital, Boston, MA, USA, Allen R. Nissenson9, 5Institute of Pathophysiology, Semmelweis University, Budapest, 7,8,10 Joel D. Kopple , Hungary, Csaba P. Kovesdy11,12 6Division of Nephrology, University Health Network, University of Toronto, Toronto, ON, Canada, and Kamyar Kalantar-Zadeh1,7 7UCLA Fielding School of Public Health, Los Angeles, CA, USA, 8Division of Nephrology and Hypertension, Harbor-UCLA Medical Center, Torrance, CA, USA, 9DaVita Inc., El Segundo, CA, USA, 10David Geffen School of Medicine at UCLA, Los Angeles, CA, USA, 11Division of Nephrology, Memphis Veterans Affairs Medical Center, ORIGINAL ARTICLE Memphis, TN, USA and 12Division of Nephrology, University of Tennessee Health Science Center, Memphis, TN, USA Correspondence and offprint requests to: Keywords: creatinine, malnutrition, mortality, muscle, perito- Kamyar Kalantar-Zadeh; E-mail:
[email protected] neal dialysis {HR 1.36 [95% confidence interval (95% CI) 1.19–1.55] and ABSTRACT 1.19 (1.08–1.31), respectively} whereas patients with serum Cr levels of 10.0–11.9 mg/dL, 12.0–13.9 mg/dL and ≥14.0 Background.