Biofilm producing isolates | Non-biofilm producing isolates | Univariate P-Value | Multivariate P-Value | |
---|---|---|---|---|
Number of Isolates | 113 | 74 | ||
Male | 101 (89 %) | 56 (76 %) | 0.01 | NS |
Military | 86 (76 %) | 41 (55 %) | <0.01 | NS |
Combat Trauma | 74 (65 %) | 35 (47 %) | 0.01 | NS |
Burn | 54 (48 %) | 27 (36 %) | 0.13 | NS |
Median % TBSA burn (IQR) | 60 % (37, 79) | 55 % (48, 63) | 0.36 | |
Coronary Artery Disease | 4 (4 %) | 7 (9 %) | 0.09 | NS |
Chronic Kidney Disease | 1 (1 %) | 1 (1 %) | 0.76 | |
ESRD | 0 (0 %) | 2 (3 %) | 0.08 | NS |
Diabetes | 6 (5 %) | 11 (15 %) | 0.03 | NS |
Median Hct on Culture Date g/dl (IQR) | 24.2 (22, 30) | 24.1 (22, 31) | 0.67 | |
Median WBC on Culture Date 103 cells/μl (IQR) | 9.6 (6, 13) | 9 (6, 12) | 0.62 | |
Median ESR on Culture Date mm/hr (IQR) | 95 (57, 114) | 79 (67, 106) | 0.77 | |
Median CRP on Culture Date mg/dl (IQR) | 16.6 (8, 24) | 12.25 (5, 20) | 0.21 | |
Received Appropriate Empiric Antibiotics | 47 (42 %) | 32 (43 %) | 0.74 | |
Median Prior Duration of Antibiotics, Days (IQR) | 4 (2, 8) | 4 (2, 8) | 0.52 | |
A. calcoaceticus-baumannii complex (n = 53) | 29 (55 %) | 24 (45 %) | 0.32 | |
E. coli (n = 34) | 5 (14 %) | 29 (85 %) | <0.001 | 0.01 |
K. pneumoniae (n = 44) | 32 (71 %) | 12 (27 %) | 0.06 | NS |
P. aeruginosa (n = 34) | 28 (82 %) | 6 (18 %) | <0.01 | <0.01 |
S. aureus (n = 22) | 19 (86 %) | 3 (14 %) | 0.01 | NS |
MSSA (n = 6) | 5 (83 %) | 1 (17 %) | 0.24 | |
MRSA (n =16) | 14 (87.5 %) | 2 (12.5 %) | 0.02 | 0.02 |
Polymicrobial Eventa | 39 (35 %) | 20 (27 %) | 0.28 | |
Blood Culture | 20 (18 %) | 21 (28 %) | 0.08 | NS |
Central Line Associated | 2 (10 %, n = 20) | 4 (19 %, n = 21) | 0.09 | NS |
Respiratory Culture | 10 (9 %) | 1 (1 %) | 0.03 | NS |
Urine Culture | 3 (3 %) | 18 (24 %) | <0.01 | NS |
Foley Catheter Associated | 1 (33 %, n = 3) | 4 (22 %, n = 18) | 0.50 | |
Wound Culture | 80 (71 %) | 34 (46 %) | <0.01 | NS |
Orthopedic Device Related | 15 (19 %, n = 80) | 4 (12 %, n = 34) | <0.01 | NS |
Median Number of Surgeries (IQR) | 5.5 (2, 9) | 6 (2, 10) | 0.56 |