TABLE III.

Risk Ratio of Postoperative Infection After Elective and Nonelective Hip Arthroplasty

Measure*	Elective Surgery†‡	Nonelective Surgery†§
SCIP INF-1 adherence	0.59 (0.32-1.08)	0.99 (0.69-1.41)
SCIP INF-2 adherence	0.88 (0.48-1.61)	0.97 (0.68-1.40)
SCIP INF-3 adherence	1.54 (0.84-2.84)	1.17 (0.82-1.67)
SCIP INF-6 adherence	0.74 (0.41-1.33)	1.04 (0.72-1.49)
SCIP VTE-1 adherence	0.84 (0.44-1.57)	0.88 (0.61-1.28)
SCIP VTE-2 adherence	2.30 (1.20-4.40)	1.32 (0.90-1.91)
Hospital case volume	0.57 (0.30-1.07)	1.10 (0.74-1.63)

^*Adherence was based on whether hospital compliance was lower or higher than the median value of respective SCIP measure compliance or case volume. INF-1 indicates that the prophylactic antibiotic was received within one hour prior to surgical incision; INF-2, that prophylactic antibiotics were recommended for the specific surgical procedure; INF-3, that prophylactic antibiotics were discontinued within twenty-four hours after surgery end time; INF-6, that appropriate surgical site hair removal was done or surgical site hair removal was not required; VTE-1, that surgery patients had recommended VTE prophylaxis ordered; and VTE-2, that surgery patients received appropriate VTE prophylaxis within twenty-four hours before surgery to twenty-four hours after surgery.

^†The values are given as the adjusted OR with the 95% CI in parentheses.

^‡Other significant factors were age (p = 0.001) and comorbidity (p = 0.03).

^§Another significant factor was primary payer (p = 0.002).