Table 1.

Input variables used in analyses

category	items
Demographic and anthropometric data	Age, gender, race, height, date of introduction of dialysis, name of primary disease
Laboratory test results	Pre- and post-dialysis WBC, RBC, Hb, Ht, Plt, Ret, TP, Alb, ALP, ChE, BUN, Cre, Na, K, Cl, Ca, IP, intact PTH, Fe, UIBC, FER, BNP, CRP
Prescription data	Drug name, dosage, number of days prescribed, and start date
Medical record entries that include the following keywords	Pulmonary congestion, pleural effusion, oxygen administration, edema, hypotension
Dialysis record	Membrane area of dialyzer, blood flow rate, injected drugs during dialysis, cardiothoracic ratio, median values of vital signs (blood pressure, pulse rate, body temperature), intradialytic hypotension

WBC, white blood cell; RBC, red blood cell; Hb, hemoglobin; Ht, hematocrit; Plt, platelet; Ret, reticulocyte; TP, total protein; Alb, albumin; ALP, alkaline phosphatase; ChE, cholinesterase; BUN, blood urea nitrogen; Cre, creatinine; Na, sodium; K, potassium; Cl, chlorine; Ca, calcium; IP, inorganic phosphorus; PTH, parathyroid hormone; Fe, iron; UIBC, unsaturated iron binding capacity; FER, ferritin; BNP, brain natriuretic peptide; CRP, C-reactive protein