Table 1 Relative incidence of bacterial species isolated from central nervous system specimens. TSN Database USA 2000–2002.
Organism | Number of organisms | Percentage of total | Patient age range (year) | Modal Patient age (year) |
|---|---|---|---|---|
Staphylococcus aureus | 1426 | 23.7 | <1 – >90 | <1 |
Streptococcus pneumoniae | 661 | 11.0 | <1 – >90 | 1 |
Viridans group streptococci | 612 | 10.2 | <1 – 88 | <1 |
Enterococcus spp. | 590 | 9.8 | <1 – >90 | <1 |
Escherichia coli | 302 | 5.0 | <1 – 89 | <1 |
Pseudomonas aeruginosa | 295 | 4.9 | <1 – >90 | <1 |
Enterobacter cloacae | 260 | 4.3 | <1 – 84 | <1 |
Coagulase-negative staphylococci a | 184 | 3.1 | <1–>90 | 1 |
Acinetobacter baumannii | 162 | 2.7 | <1 – 84 | <1 |
Klebsiella pneumoniae | 151 | 2.5 | <1 – 83 | <1 |
Streptococcus agalactiae | 131 | 2.2 | <1 – 83 | <1 |
Serratia marcescens | 127 | 2.1 | <1 – 85 | <1 |
Proprionibacterium acnes | 118 | 2.0 | <1 – 82 | 33 |
Enterobacter aerogenes | 103 | 1.7 | <1 – 84 | <1 |
Haemophilus influenzae | 75 | 1.2 | <1 – >90 | <1 |
Klebsiella oxytoca | 62 | 1.0 | <1 – 69 | <1 |
Neisseria meningitidis | 60 | 1.0 | <1 – 70 | 2 |
Corynebacterium spp. | 58 | 1.0 | <1 – 87 | 16 |
Other b | 652 | 10.8 | <1 – >90 | <1 |
Total | 6029 | 100 |