Ain-Shams Journal of Anesthesiology

Table 4 Univariate and multivariate linear regression analyses to identify the factors associated with blood loss during quadrantectomy

From: Protective effect of remifentanil on blood loss in endoscopic subcutaneous mastectomy: a retrospective study

	Univariate			Multivariate
Factor	Coefficient	Standard error	P value	Coefficient	Standard error	P value
Age, years	− 0.96	9.74	0.2	− 0.33	0.71	0.65
Operative time	1.18	0.18	< 0.001	1.08	0.18	< 0.001
Ephedrine use	− 22.33	21.9	0.31	− 7.4	20.79	0.72
Phenylephrine use	− 82.66	122.77	0.5	− 77.67	113.72	0.5
Atropine use	− 39.28	19.02	0.04	− 15.21	18.36	0.41
Diclofenac suppository use	5.7	22.95	0.8	− 7.08	22.27	0.75
Flurbiprofen axetil use	− 13.79	17.35	0.43	− 0.25	18.18	0.99
Remifentanil use	− 56.11	18.7	0.003	− 39.12	19.68	0.048
				n = 212
				R²/adj. R² = 0.199/0.167
				P < 0.001

R²/adj. R² determination coefficient/adjusted determination coefficient

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