Risk factors for blood transfusion and its prognostic implications in curative gastrectomy for gastric cancer

Table 4 Univariate and multivariate analyses of factors associated with risk of receiving perioperative red blood cell transfusion

Variable	Univariate			Multivariate
	OR	95%CI	P value	OR	95%CI	P value
Male vs female	1.19	0.85-1.68	0.319
Age ≥ 65 yr vs < 65 yr	1.48	1.06-2.07	0.02	1.2	0.79-1.81	0.394
Charlson ≥ 1 vs 0	1.53	1.09-2.15	0.015	1.22	0.76-1.97	0.402
ASA III/IV vs I/II	2.27	1.60-3.23	< 0.001	1.18	0,72-1.94	0.507
HB < 11 g/dL vs ≥ 11 g/dL	4.7	3.30-6.70	< 0.001	4.32	2.76-6.78	< 0.001
ALB < 3.5 g/dL vs ≥ 3.5 g/dL	3.49	2.29-5.31	< 0.001	1.86	1.12-3.09	0.017
Total gastrectomy vs distal	1.89	1.35-2.65	< 0.001	1.71	1.13-2.60	0.011
Open surgery vs MIS	2.69	1.64-4.41	< 0.001	1.91	1.05-3.47	0.034
Major POC vs non/minor POC	8.18	5.32-12.59	< 0.001	8.83	5.28-14.79	< 0.001
Intraoperative intercurrence vs none	1.49	0.71-3.16	0.293

ASA: American Society of Anesthesiologists; OR: Odds ratio; HB: Serum hemoglobin; ALB: Serum albumin; MIS: Minimally invasive surgery; POC: Postoperative complications.