Table 4a.
Blood stream isolates, by NICU and study period
| NICU 1 | NICU 2 | Total | |||
|---|---|---|---|---|---|
| Phase I | Phase II | Phase I | Phase II | ||
| Total # of blood cultures submitted | 197 | 504 | 289 | 272 | 1262 |
| Total # of positive isolates (% positive) | 32 (16) | 99 (20) | 216 (76) | 163 (63) | 536 (43) |
| Total GPCs identified (% all positives) | 0 (0) | 25 (5) | 16 (6) | 19 (7) | 60 (11) |
| Methicillin-sensitive S. aureus | 0 | 4 | 5 | 3 | 12 |
| MRSA | 0 | 1 | 0 | 0 | 1 |
| Vancomycin-sensitive Enterococcus | 0 | 2 | 0 | 0 | 2 |
| VRE | 0 | 0 | 0 | 0 | 0 |
| Coagulase-negative staphylococci | 0 | 18 | 11 | 16 | 45 |
| Total GNRs # (% of all positives) | 27 (84) | 32 (32) | 198 (92) | 142 (87) | 417 (89) |
| Total enteric GNRs # (% total GNRs) | 3 (11) | 23 (72) | 135 (68) | 111 (78) | 287 (69) |
| Klebsiella spp. | 0 | 9 | 76 | 78 | 163 |
| Escherichia coli | 0 | 0 | 16 | 8 | 24 |
| Citrobacter spp. | 0 | 0 | 2 | 2 | 4 |
| Enterobacter spp. | 3 | 14 | 44 | 34 | 95 |
| Proteus rettgeri | 0 | 1 | 0 | 0 | 1 |
| Total non-enteric GNR # (% total GNRs) | 24 (89) | 9 (28) | 63 (32) | 31 (22) | 130 (31) |
| Pseudomonas spp. | 0 | 5 | 52 | 15 | 72 |
| Acinetobacter baumanii | 0 | 1 | 3 | 4 | 8 |
| Stenotrophomonas maltophilia | 0 | 3 | 4 | 4 | 11 |
| Alcaligenes faecalis | 22 | 0 | 2 | 6 | 30 |
| Burkholderia cepacia | 0 | 0 | 3 | 3 | 6 |
| Flavobacterium spp. | 2 | 0 | 0 | 0 | 2 |
| Achromobacter spp. | 1 | 0 | 0 | 0 | 1 |
| Other pathogens (% all positives) | 5 (3) | 42 (8) | 2 (1) | 2 (1) | 59 (1) |
Abbreviations: GPC – gram-positive cocci; GNR – gram-negative rod; MRSA – methicillin-resistant S. aureus; VRE – vancomycin-resistant Enterococcus