Table 2 Microorganism distribution
Microorganism | Conventional period Number (%) | MALDI-TOF period Number (%) | P Value† |
|---|---|---|---|
Polymicrobial BSI | 36/302 (11.9) | 26/254 (10.2) | 0.530 |
Total number of organisms | 338 | 285 | |
Gram-positive bacteria | 112 (33.1) | 92 (32.3) | 0.821 |
Staphylococcus aureus | 29 (8.6) | 20 (7.0) | 0.470 |
MRSA | 16 (4.7) | 12 (4.2) | 0.754 |
Coagulase-negative staphylococcus | 26 (7.7) | 14 (4.9) | 0.158 |
Streptococcus spp | 16 (4.7) | 23 (8.1) | 0.087 |
Enterococcus spp | 32 (9.5) | 24 (8.4) | 0.649 |
Other gram-positive bacteria | 9 (2.7) | 11 (3.9) | 0.398 |
Gram-negative bacteria | 208 (61.5) | 172 (60.4) | 0.762 |
Escherichia coli | 94 (27.8) | 81 (28.4) | 0.866 |
Klebsiella spp | 45 (13.3) | 40 (14.0) | 0.794 |
Acinetobacter spp | 16 (4.7) | 9 (3.2) | 0.318 |
Enterobacter spp | 12 (3.6) | 5 (1.8) | 0.170 |
Pseudomonas aeruginosa | 6 (1.8) | 6 (2.1) | 0.765 |
Citrobacter spp | 3 (0.9) | 8 (2.8) | 0.070 |
Serratia spp | 3 (0.9) | 3 (1.1) | > 0.999 |
Proteus spp | 4 (1.2) | 4 (1.4) | > 0.999 |
Other gram-negative bacteria | 25 (7.4) | 16 (5.6) | 0.371 |
Yeast | 18 (5.3) | 21 (7.4) | 0.294 |
Candida spp | 17 (5.0) | 21 (7.4) | 0.224 |
Cryptococcus spp | 1 (0.3) | 0 (0.0) | > 0.999 |