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Table 2 Patient, Procedure and Facility Characteristics among FY16–17 VA Outpatient Surgeries in 5 High-Volume Surgical Specialties with and without Prolonged Prophylactic Antimicrobials

From: Facility type and surgical specialty are associated with suboptimal surgical antimicrobial prophylaxis practice patterns: a multi-center, retrospective cohort study

Variable

Total (%)

With Prolonged Antimicrobial Exposure, n (%)

Total

153,097

7712 (5.0%)

Patient Characteristics

 Female

7623 (5%)

424 (5%)*

 White

121,169 (79%)

6191 (80%)*

 Age, years (std. dev)

67.6 (11.7)

65.2 (12.5)**

 Comorbidity index, score (std. dev)

2.5 (6.5)

2.5 (6.3)

Procedure Characteristics

 Relative value unit (std. dev)

5.4 (3.9)

5.2 (3.5)**

 Eye

67,778 (44%)

254 (3%)**

 Genitourinary

38,507 (25%)

5288 (69%)**

 Orthopedics

17,221 (11%)

667 (9%)**

 Ear/Nose/Throat

15,661 (10%)

1419 (18%)**

 General Surgery

13,930 (9%)

84 (1%)**

Facility Characteristics

 ASC

6658 (4%)

301 (4%)*

 Standard HOPD

3257 (2%)

218 (3%)**

 Intermediate HOPD

24,989 (16%)

1839 (24%)**

 Complex HOPD

118,193 (77%)

5354 (69%)**

  1. Note: Comparisons are chi-square tests for bivariates and two-tailed t-tests for continuous variables. Symbols indicate significance: **p-value< 0.001; *p-value< 0.05