Individualized risk estimation for postoperative pulmonary complications after hepatectomy based on perioperative variables

Table 3 Multivariate analysis to screen and assign independent influencing factors of post-hepatectomy pulmonary complications

Variable	Odds ratio	P value1
χ1: Age (≥ 65 years old/< 65 years old)	1.926	0.011
χ2: Medical diseases requiring drug treatment (Yes/No)	3.523	< 0.001
χ3: Number of segments resected (≥ 3/≤ 2)	1.683	0.002
χ4: Operation duration (≥ 180 min/< 180 min)	1.896	0.004
χ5: Blood transfusion (Yes/No)	1.836	0.003

¹Logistic regression.