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 |