Table 4.
Organism Distribution
| Pre-implementation (n = 65) | Post-implementation (n = 66) | |
|---|---|---|
| Gram-positive organisms, n (%) | 40 (61.5) | 49 (74.2) |
| Staphylococcus aureus | 8 (12.3) | 10 (15.2) |
| Pathogenic Staphylococcus non-aureus species* | 1 (1.5) | 0 |
| Non-pathogenic staphylococci† | 15 (23.1) | 18 (27.2) |
| Group A Streptococci | 1 (1.5) | 0 |
| Group B Streptococci | 3 (4.6) | 3 (4.5) |
| Streptococcus hemolyticus | 1 (1.5) | 0 |
| Streptococcus pneumoniae | 0 | 3 (4.5) |
| Viridans Streptococci‡ | 4 (6.2) | 5 (7.6) |
| Enterococcus species§ | 4 (6.2) | 2 (3) |
| Kocuria (Micrococcus luteus) rhizophila | 1 (1.5) | 4 (6.1) |
| Rothia mucilaginosus | 0 | 2 (3) |
| Other Gram-positive organisms¶ | 2 (3.1) | 2 (3) |
|
| ||
| Gram-negative organisms, n (%) | 24 (36.9) | 15 (22.7) |
| Acinetobacter species | 0 | 1 (1.5) |
| Citrobacter freundii complex | 1 (1.5) | 0 |
| Escherichia coli | 7 (10.7) | 6 (9.1) |
| Enterobacter cloacae complex | 5 (7.7) | 0 |
| Klebsiella species | 4 (6.2) | 2 (3) |
| Proteus mirabilis | 1 (1.5) | 0 |
| Morganella morganii | 0 | 1 (1.5) |
| Pseudomonas aeruginosa | 2 (3.1) | 0 |
| Serratia marcescens | 1 (1.5) | 0 |
| Bacillus species | 1 (1.5) | 3 (4.5) |
| Neisseria species | 1 (1.5) | 1 (1.5) |
| Other Gram-negative organisms# | 1 (1.5) | 1 (1.5) |
|
| ||
| Candida species** | 1 (1.5) | 2 (3) |
Note; quantity of each organism identified included in parentheses
* Pre-implementation group: Staphylococcus lugdunensis.
† Coagulase-negative staphylococcus identified included; pre-implementation: Staphylococcus capitis, Staphylococcus epidermidis (n=9), Staphylococcus hominis (n=4), Staphylococcus lugdunensis, Staphylococcus warneri; post-implementation: Staphylococcus capitis, Staphylococcus epidermidis (n=11), Staphylococcus hominis (n=5), Staphylococcus warneri.
‡ Streptococci species identified: pre-implementation: Streptococcus mitis/oralis (n=3), Streptococcus salivarius; post-implementation: Streptococcus mitis/oralis (n=3), viridans group Streptococcus, Streptococcus salivarius.
§ Enterococcus species: pre-implementation: Enterococcus faecalis (n=3); Enterococcus faecium (n=1); post-implementation: Enterococcus faecalis (n=2).
¶ Other Gram-positive organisms: pre-implementation: Lactobacillus, Lactococcus; post-implementation: Corynebacterium, Cutibacterium acnes.
# Other Gram-negative organisms: pre-implementation: Haemophilus influenza; post-implementation: Salmonella species.
** Candida species: pre-implementation: Candida parapsilosis; post-implementation: Candida krusei, Candida lusitaniae.