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Table 1 Pre-operative and intra-operative characteristics of 488 patients undergoing liver resection

From: Serum arterial lactate concentration predicts mortality and organ dysfunction following liver resection

n = 488 Median (range) Count (%)
Age (years) 65 (21–90)  
Gender Female   216 (44.3)
Male   272 (55.7)
Pathology of resected specimen Benign   40 (8.2)
Primary Hepatocellular carcinoma   30 (6.1)
Cholangiocarcinoma   36 (7.4)
Other   35 (7.2)
Secondary Colorectal metastases   291 (59.6)
Other   56 (11.5)
Pre-operative liver-directed chemotherapy Yes   173 (35.5)
No   315 (64.5)
Body mass index 26 (16–54)  
P-POSSUM physiologic score 16 (12–32)  
ASA grade 1   49 (10.1)
2   315 (64.7)
3   121 (24.8)
4   2 (0.4)
Pre-operative diabetes Yes   55 (11.3)
No   433 (88.7)
Pre-operative bilirubin (μmol/L) 9 (2–162)  
Pre-operative alkaline phosphatase (U/L) 95 (34–1190)  
Pre-operative albumin (g/L) 44 (10–53)  
Pre-operative creatinine (μmol/L) 78 (40–430)  
Pre-operative glomerular filtration rate (ml/min) ≤90   158 (33.2)
>90   318 (66.8)
Neutrophil to lymphocyte ratio (NLR) 2.47(0.3-17.3)  
Operation number 1st   453 (92.8)
2nd   30 (6.1)
3rd   5 (1.0)
Surgeons assessment of liver parenchyma Normal   314 (65.3)
Abnormal   167 (34.7)
Surgical approach Open   440 (90.2)
Laparoscopic   48 (9.8)
Radiofrequency ablation (RFA) included Yes   22 (4.5)
No   466 (95.5)
Operation Right hemihepatectomy   142 (29.1)
Extended right hemihepatectomy   65 (13.3)
Left hemihepatectomy   55 (11.3)
Extended left hemihepatectomy   24 (4.9)
Left lateral sectorectomy   45 (9.2)
Wedge resection only   127 (26.0)
Other   30 (6.1)
Wedge resection included Yes   182 (37.3)
No   306 (62.7)
Bile duct reconstruction included Yes   43 (8.8)
No   445 (91.2)
Synchronous bowel procedure Yes   22 (4.5)
No   466 (95.5)
Curative intent Yes   442 (90.6)
No   46 (9.4)
Number of segments resected 4 (1–6)  
Estimated blood loss <100 ml   2 (0.4)
101-500 ml   240 (49.7)
501-1000 ml   167 (34.6)
>1000 ml   74 (15.3)
Units of red cells transfused 0 (0–26)