Organisms | No. of Isolates in SBA Group (N = 6516), n (%) | No. of Isolates in SAA Group (N = 2334), n (%) | P value |
---|---|---|---|
Bacteria | 6256 (96.0%) | 2138 (91.6%) | < 0.001 |
 Gram-positive organism | 1773 (27.2%) | 577 (24.7%) | 0.020 |
  S. aureus | 556 (8.5%) | 232 (9.9%) | 0.041 |
  CNS | 469 (7.2%) | 105 (4.5%) | < 0.001 |
  Streptococcus spp. | 311 (4.8%) | 64 (2.7%) | < 0.001 |
  Enterococcus spp. | 437 (6.7%) | 176 (7.5%) | 0.173 |
 Gram-negative organism | 4268 (65.5%) | 1515 (64.9%) | 0.607 |
  Enterobacteriaceae | 2777 (42.6%) | 847 (36.3%) | < 0.001 |
   E. coli | 1008 (15.5%) | 226 (9.7%) | < 0.001 |
   K. pneumoniae | 1037 (15.9%) | 375 (16.1%) | 0.863 |
   Enterobacter spp. | 237 (3.6%) | 125 (5.4%) | < 0.001 |
   Other Enterobacteriaceae bacteria | 495 (7.6%) | 121 (5.2%) | < 0.001 |
  Non-fermenting bacteria | 1296 (19.9%) | 647 (27.7%) | < 0.001 |
   Pseudomonas spp. | 569 (8.7%) | 236 (10.1%) | 0.047 |
   Acinetobacter spp. | 487 (7.5%) | 274 (11.7%) | < 0.001 |
   Burkholderia spp. | 32 (0.5%) | 17 (0.7%) | 0.185 |
   S. maltophilia | 114 (1.7%) | 61 (2.6%) | 0.01 |
  Other non-fermenting bacteria | 94 (1.4%) | 59 (2.5%) | < 0.001 |
   H. influenzae | 150 (2.3%) | 19 (0.8%) | < 0.001 |
   M. catarrhalis | 45 (0.7%) | 2 (0.1%) | < 0.001 |
 Other bacteria | 215 (3.3%) | 46 (2.0%) | 0.001 |
Fungi | 260 (4.0%) | 196 (8.4%) | < 0.001 |
 Candida spp. | 233 (3.6%) | 185 (7.9%) | < 0.001 |
 Aspergillus spp. | 20 (0.3%) | 10 (0.4%) | 0.386 |
 Cryptococcus spp. | 3 (0.0%) | 0 (0.0%) | 0.571* |
 Other fungi | 4 (0.0%) | 1 (0.0%) | 0.854# |