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Table 1 Patient characteristics

From: Predictive models for chronic kidney disease after radical or partial nephrectomy in renal cell cancer using early postoperative serum creatinine levels

Variable Radical nephrectomy (n = 557) Partial nephrectomy (n = 999)
Age (years) 56 (12) 54 (12)
Male sex 364 (67%) 668 (67%)
ASA physical status
 I 116 (21%) 299 (30%)
 II 318 (57%) 588 (59%)
 III 123 (22%) 112 (11%)
Medical history
 Hypertension 256 (46%) 381 (38%)
 Diabetes mellitus 98 (18%) 156 (16%)
 Chronic renal disease 6 (< 1%) 8 (< 1%)
Tumor size (cm) 5.2 (2.3) 2.6 (1.4)
Size of mass removed (cm) 13.4 (3.3) 4.4 (2.2)
R.E.N.A.L. nephrectomy score 6.0 (1.8)
Warm ischemia time (min) 23.4 (12.6)
Duration of anesthesia (min) 207 (58) 224 (53)
Bleeding amount (mL) 171 (380) 232 (279)
Preoperative laboratory values
 Hematocrit (%) 41.4 (4.6) 42.5 (4.3)
 Neutrophil count (103/μL) 4.31 (1.74) 3.77 (1.51)
 Lymphocyte count (103/μL) 1.99 (0.63) 1.99 (0.61)
 Monocyte count (103/μL) 0.44 (0.17) 0.42 (0.15)
 Platelet count (103/μL) 264 (85) 252 (67)
 Creatinine (mg/dL)a 0.88 (0.25) 0.85 (0.21)
 Blood urea nitrogen (mg/dL)a 14.4 (4.4) 14.2 (3.9)
 Uric acid (mg/dL)a 5.1 (1.4) 5.2 (1.4)
 Total protein (g/dL)a 7.3 (0.5) 7.3 (0.5)
 Albumin (g/dL)a 4.5 (0.4) 4.6 (0.4)
 Aspartate aminotransferase (IU/L)a 22 (11) 23 (11)
 Alanine aminotransferase (IU/L)a 23 (16) 25 (16)
 Alkaline phosphatase (IU/L)a 68 (26) 65 (19)
 Total bilirubin (mg/dL)a 0.7 (0.3) 0.7 (0.3)
 Cholesterol (mg/dL)a 179 (42) 186 (36)
 Sodium (mEq/L)a 141 (2) 141 (2)
 Potassium (mEq/L)a 4.4 (0.4) 4.4 (0.4)
 Calcium (mEq/L)a 9.4 (0.5) 9.4 (0.4)
 Phosphate (mEq/L)a 3.6 (0.5) 3.5 (0.5)
Preoperative vital signs
 Systolic blood pressure (mmHg) 132 (14) 132 (16)
 Diastolic blood pressure (mmHg) 81 (10) 83 (11)
 Heart rate (beats/min) 74 (11) 74 (11)
  1. Values represent the mean (SD) or number of patients (proportion). ASA American Society of Anesthesiologists, PN partial nephrectomy, R.E.N.A.L. radius, exophytic or endophytic, nearness to collecting system or sinus, anterior or posterior location, and location relative to polar lines
  2. aData were obtained from serum