Hemoglobin loss method calculates blood loss during pancreaticoduodenectomy and predicts bleeding-related risk factors

Table 5 Single factor analysis of intraoperative calculation of blood loss

Parameter	B value	P value	95%CI
Age in yr	3.575	0.448	-5.68-12.83
History of diabetes	301.719	0.017	53.82-549.62
History of abdominal surgery	-19.508	0.896	-313.37-274.35
BMI in kg/m2	18.799	0.186	-9.10-46.70
Nature of tumor	-120.529	0.383	-392.12-151.07
Preoperative albumin in g/L	-4.133	0.648	-21.90-13.63
Pancreatic tumors	15.438	0.884	-192.26-223.14
Preoperative total bilirubin > 200 in μmol/L	196.479	0.098	-36.69-429.65

BMI: Body mass index; CI: Confidence interval.