Causative pathogens of late-onset sepsis found in 30 UK neonatal units in the neonIN network
| Pathogen | Number | Percentage |
| Gram positive | 2984 | 77 |
| Coagulase-negative staphylococci | 2233 | 75 |
| Staphylococcus aureus | 233 | 8 |
| Enterococcus faecalis | 184 | 6 |
| Group B streptococci | 136 | 5 |
| Enterococcus (other) | 71 | 2 |
| Streptococcus (other) | 38 | 1 |
| Micrococcus sp | 25 | 1 |
| Bacillus sp | 24 | 1 |
| Diphtheroids | 11 | <1 |
| Beta haemolytic streptococci | 9 | <1 |
| Alpha haemolytic streptococci | 7 | <1 |
| Enterococcus faecium | 7 | <1 |
| Streptococcus pneumoniae | 3 | <1 |
| Propionibacterium acnes | 2 | <1 |
| Listeria monocytogenes | 1 | <1 |
| Gram negative | 748 | 19 |
| Escherichia. coli | 241 | 32 |
| Klebsiella spp | 160 | 21 |
| K. pneumoiae | 66 | 41 |
| K. oxytoca | 55 | 34 |
| K. aerogenes | 18 | 11 |
| Klebsiella sp (undefined) | 21 | 13 |
| Enterobacter spp | 136 | 18 |
| E. cloacae | 102 | 75 |
| E. aerogenes | 16 | 12 |
| Enterobacter sp (undefined) | 18 | 13 |
| Pseudomonas spp | 73 | 10 |
| P. aeruginosa | 66 | 91 |
| P. cepacia | 1 | 1 |
| P. stutzeri | 1 | 1 |
| Pseudomonas sp (undefined) | 5 | 7 |
| Serratia spp | 43 | 6 |
| S. marcescens | 38 | 88 |
| S. liquefaciens | 1 | 2 |
| Serratia sp (undefined) | 4 | 10 |
| Coliform | 26 | 3 |
| Acinetobacter spp | 25 | 3 |
| A. baumanii | 6 | 24 |
| A. anitratus | 1 | 4 |
| A. lwoffii | 1 | 4 |
| Acinetobacter sp (undefined) | 17 | 68 |
| Citrobacter sp | 13 | 2 |
| Burkholderia sp | 5 | <1 |
| Haemophilus sp | 5 | <1 |
| Morganella morganii | 5 | <1 |
| Moraxella catarrhalis | 4 | <1 |
| Proteus sp | 3 | <1 |
| Providencia stuartii | 3 | <1 |
| Stenotrophomonas maltophilia | 3 | <1 |
| Neisseria sp | 1 | <1 |
| Pantoea | 1 | <1 |
| Salmonella sp | 1 | <1 |
| Fungi | 158 | 4 |
| Candida spp | 151 | 96 |
| C. albicans | 100 | 66 |
| C. parapsilosis | 19 | 13 |
| C. tropicalis | 2 | 1 |
| C. glabrata | 2 | 1 |
| C. guilliermondii | 1 | <1 |
| C. dubliniensis | 1 | <1 |
| Candida sp (undefined) | 26 | 17 |
| Yeasts | 5 | 3 |
| Aspergillus fumigatus | 1 | <1 |
| Malassezia furfur | 1 | <1 |
Total number and percentage composition of recorded positive cultures for all recorded late-onset sepsis pathogens.