Table 1.

Demographic and non-tumor-related patients’ characteristics

Characteristics	Values or number of cases
Total number of cases	179
Mean age at surgery (years), range	66.2, 48–81
Pre-operative mean BMI (kg/m2) (SD)	23.4 (3.7)
Pre-operative mean serum albumin (g/dl)	4.3 (0.3)
ASA risk classification system at surgery
Class 1 / Class 2	107 (59.8%) / 66 (36.9%)
/ Class 3	/ 6 (3.3%)
Surgery type
Open / Minimum incision endoscopic	129 (72.1%) / 26 (14.5%)
/ Robot-assisted	/ 24 (13.4%)
Blood loss at surgery (ml)
< 1000 / 1000–2000	115 (64.2%) / 49 (27.4%)
/ >3000	/ 15 (8.4%)

BMI – body mass index; SD – standard deviation; ASA – American Society of Anesthesiologists