BEE	basal energy expenditure
BIA	bioimpedance analysis
BMI	body mass index
CKD	chronic kidney disease
CI	confidence interval
Cr	serum creatinine
ECW	extracellular water
eGFR	estimated glomerular filtration rate
GNRI	geriatric nutritional risk index
HR	hazard ratio
ICW	intracellular water
MDRD	Modification of Diet in Renal Disease
NPC/N	non-protein calorie to nitrogen
PEW	protein-energy wasting
TBW	total body water
UNA	urea nitrogen appearance
UPCR	urinary protein-to-creatinine ratio