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Table 3 Infection characteristics among deployment-injured U.S. service members (June 2009–August 2012) 1

From: Biofilms and persistent wound infections in United States military trauma patients: a case–control analysis

Characteristics

SSTI Case Wounds (N = 35)

SSTI Control Wounds (N = 69)

p-value

Infection Location, No. (%)

  

0.024

 Lower extremity

13 (37.1)

45 (65.2)

 

  Thigh

8 (22.9)

26 (37.6)

 

  Gluteal muscles

0

4 (5.7)

 

  Knee

1 (2.8)

4 (5.7)

 

  Lower leg

2 (5.7)

9 (13.0)

 

  Ankle

0

1 (1.4)

 

  Foot

2 (5.7)

1 (1.4)

 

 Upper extremity

8 (22.9)

9 (13.0)

 

  Upper arm

4 (11.4)

5 (7.2)

 

  Forearm

4 (11.4)

4 (5.7)

 

 Non-extremity

14 (40.0)

15 (21.7)

 

  Groin/genitalia

14 (40.0)

5 (7.2)

 

  Head/chest/abdomen

0

10 (14.5)

 

Time from injury to 1st culture with growth, median days (IQR)2

12 (8, 38)

16 (7, 28)

0.989

OR visits prior to and on date of infection diagnosis, median (IQR)

1 (1, 1)

1 (1, 1)

0.285

Medical devices implanted in the same anatomic region as the infected wound, No. (%)

7 (20.0)

13 (18.8)

1.000

Infection Characteristics, No. (%)

   

 Biofilm production

34 (97.1)

41 (59.4)

<0.0001

 Organisms susceptible to empiric antibiotics

11 (31.4)

17 (24.6)

0.154

 Infections due to multidrug-resistant organisms

26 (74.3)

41 (59.4)

0.135

 Polymicrobial infection

25 (71.4)

0

<0.0001

  1. IQR-interquartile range; OR-operating room; SSTI-skin and soft-tissue infections; U.S.-United States.
  2. 1Data are on a per SSTI wound basis.
  3. 2Specific to growth of the five organisms included in the analysis: Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Escherichia coli.