Association between preoperative anemia and postoperative short-term outcomes in patients undergoing colorectal cancer surgery - a propensity score matched retrospective cohort study

Table 4 Independent risk factors for major morbidity ^a in the entire cohort (n = 1894)

Variables	Univariate analysis ^e			Multivariate analysis ^f
Variables	OR	95%CI	P-value	OR	95%CI	P-value
Preoperative Anemia	1.245	1.008–1.538	0.042	1.088	0.870–1.361	0.460
Sex^b	1.542	1.235–1.920	< 0.001	1.548	1.233–1.943	< 0.001
Diabetes	1.587	1.204–2.093	0.001	1.622	1.222–2.154	0.001
Surgical Approach^c	2.299	1.459–3.620	< 0.001	2.054	1.276–3.309	0.003
Duration of Surgery	1.005	1.003–1.006	< 0.001	1.004	1.003–1.006	< 0.001
Perioperative Blood Transfusions^d	2.744	1.887–3.990	< 0.001	2.450	1.646–3.645	< 0.001

^a Major morbidity includes surgical site infection, hemorrhage, anastomotic fistula, chyle fistula, bloodstream infection,
myocardial infarction, congestive heart failure, stroke/transient ischemic attack, pulmonary embolism, and pneumonia
^b Woman as reference group
^c Laparoscopic group as reference group
^d Perioperative blood transfusion includes preoperative, intraoperative, and postoperative blood transfusion
^e Univariate logistic regression analysis
^f Multivariate logistic regression analysis

ISSN: 1471-2253