. 2014 Nov 25;473(7):2197–2203. doi: 10.1007/s11999-014-4062-3

Table 3.

Comparison of outcomes between patients receiving cefazolin alone and cefazolin plus vancomycin perioperatively

Patient variable	Ancef only (n = 500)	Ancef + vancomycin (n = 1328)	p value
Estimated blood loss (mL) (SD)	277 (418)	223 (309)	0.476
Intraoperative fluids (mL) (SD)	1825 (890)	1837 (874)	0.576
Preoperative kidney disease (%)	128 (26)	283 (21)	0.050
Preoperative GFR (mL/min/1.73 m²) (SD)	77.0 (26)	78.6 (26)	0.645
Preoperative creatinine (mg/dL) (SD)	1.00 (0.84)	0.92 (0.54)	0.844

GFR = glomerular filtration rate.