Microorganisms associated with hospital-onset bacteraemia and fungaemia (HOB) events, stratified by non-commensal and commensal organisms
| Distribution of non-commensal organisms | Overall n (%)(N=2109) | Adult n (%)(n=1754) | Paediatric n (%)(n=355) | Academic n (%) (n=1768) | Community n (%)(n=341) |
| (n=1922 organisms in 1789 events) | (n=1613 organisms in 1504 events) | (n=309 organisms in 285 events) | (n=1640 organisms in 1525 events) | (n=282 organisms in 264 events) | |
| Gram positives (n=803) | |||||
| Staphylococcus aureus | 407 (22.8) | 352 (23.4) | 55 (19.3) | 312 (20.5) | 95 (36.0) |
| Enterococcus faecalis | 156 (8.7) | 121 (8.0) | 35 (12.3) | 135 (8.9) | 21 (8.0) |
| Enterococcus faecium | 123 (6.9) | 116 (7.7) | 7 (2.5) | 117 (7.7) | 6 (2.3) |
| Other gram positives | 117 (6.5) | 101 (6.7) | 16 (5.6) | 102 (6.7) | 15 (5.7) |
| Gram negatives (n=933) | |||||
| Escherichia coli | 269 (15.1) | 229 (15.2) | 40 (14.0) | 225 (14.8) | 44 (16.7) |
| Klebsiella pneumoniae | 155 (8.7) | 130 (8.6) | 25 (8.8) | 123 (8.1) | 32 (12.1) |
| Pseudomonas aeruginosa | 109 (6.1) | 94 (6.3) | 15 (5.3) | 100 (6.6) | 9 (3.4) |
| Enterobacter cloacae complex | 83 (4.7) | 61 (4.1) | 22 (7.7) | 78 (5.1) | 5 (1.9) |
| Serratia marcescens | 52 (2.9) | 40 (2.7) | 12 (4.2) | 50 (3.3) | 2 (0.8) |
| Other gram negatives | 265 (14.9) | 224 (14.9) | 41 (14.4) | 240 (15.7) | 25 (9.5) |
| Fungi (n=186) | |||||
| Candida albicans | 75 (4.2) | 59 (3.9) | 16 (5.6) | 63 (4.1) | 12 (4.5) |
| Candida glabrata | 36 (2.0) | 34 (2.3) | 2 (0.7) | 29 (1.9) | 7 (2.7) |
| Candida parapsilosis | 28 (1.6) | 19 (1.3) | 9 (3.2) | 25 (1.6) | 3 (1.1) |
| Other yeast species | 47 (2.6) | 33 (2.2) | 14 (4.9) | 41 (2.7) | 6 (2.3) |
| Distribution of commensal organisms | (n=401 organisms in 320 cases) | (n=315 organisms in 250 cases) | (n=86 organisms in 70 cases) | (n=315 organisms in 243 cases) | (n=86 organisms in 77 cases) |
| Coagulase-negative Staphylococcus | 267 (83.4) | 207 (82.8) | 60 (85.7) | 199 (81.9) | 68 (88.3) |
| Streptococcus viridans group | 67 (20.9) | 47 (18.8) | 20 (28.6) | 57 (23.5) | 10 (13.0) |
| Bacillus sp | 12 (3.8) | 10 (4.0) | 2 (2.9) | 11 (4.5) | 1 (1.3) |
| Corynebacterium sp | 8 (2.5) | 7 (2.8) | 1 (1.4) | 8 (3.3) | 0 (0.0 |
| Other commensals | 47 (14.7) | 44 (17.6) | 3 (4.3) | 40 (16.5) | 7 (9.1) |
Percentages are calculated as column percentages for each organism out of the total number of HOB events, separately for non-commensal and commensal organisms.