Cultured microorganisms in relation to underlying condition
| Microorganism | Total4-150 | Children | Adults | |||||||
| All | Previously healthy | Concomitant disease | All | Previously healthy | Immunocompromised | Joint disorder | Joint disorder and immunocompromised | |||
| Staphylococcus | 97 (48) | 9 (24) | 6 | 3 | 88 (53) | 9 (39) | 28 (64) | 38 (52) | 13 (50) | |
| S aureus | 23 | 2 | 2 | 21 | 4 | 9 | 5 | 3 | ||
| S aureus, penicillin resistant | 60 | 7 | 4 | 3 | 53 | 5 | 18 | 24 | 6 | |
| S epidemidis | 11 | 11 | 1 | 6 | 4 | |||||
| Species | 3 | 3 | 3 | |||||||
| Streptococcus | 37 (18) | 8 (21) | 6 | 2 | 9 (17) | 7 (30) | 5 (11) | 15 (21) | 2 (8) | |
| Group A | 10 | 4 | 4 | 6 | 3 | 2 | 1 | |||
| Group B | 7 | 7 | 3 | 4 | ||||||
| Group D | 2 | 2 | 2 | |||||||
| Group G | 7 | 7 | 1 | 5 | 1 | |||||
| S pneumoniae | 7 | 4 | 2 | 2 | 3 | 1 | 1 | 1 | ||
| S mitis | 1 | 1 | 1 | |||||||
| Species | 3 | 3 | 2 | 1 | ||||||
| Gram negative bacilli | 30 (15) | 8 (21) | 7 | 1 | 22 (13) | 1 (4) | 5 (11) | 10 (14) | 6 (23) | |
| Escherichia coli | 9 | 9 | 4 | 5 | ||||||
| Proteus mirabilis | 2 | 2 | 1 | 1 | ||||||
| Klebsiellaspecies | 1 | 1 | 1 | |||||||
| Enterobacter cloacae | 2 | 2 | 1 | 1 | ||||||
| Citrobacter freundii | 1 | 1 | 1 | |||||||
| Pseudomonas aeruginosa | 5 | 5 | 1 | 4 | ||||||
| Haemophilus influenzae | 8 | 7 | 6 | 1 | 1 | 1 | ||||
| Haemophilus parainfluenzae | 1 | 1 | 1 | |||||||
| Pasteurella multocida | 1 | 1 | 1 | |||||||
| Other bacteria | 16 (8) | 1 (3) | 1 | 15 (9) | 3 (13) | 5 (11) | 6 (8) | 1 (4) | ||
| Bacteroidesspecies | 3 | 3 | 1 | 2 | ||||||
| Peptostreptococcus prevotii | 1 | 1 | 1 | |||||||
| Corynebacterium species | 1 | 1 | 1 | |||||||
| Neisseria meningitidis | 2 | 1 | 1 | 1 | 1 | |||||
| Propionibacterium acnes | 3 | 3 | 2 | 1 | ||||||
| Borrelia burgdorferi | 1 | 1 | 1 | |||||||
| Mycobacterium tuberculosis | 5 | 5 | 1 | 2 | 2 | |||||
| Unknown | 24 (12) | 12 (32) | 1 | 1 | 12 (7) | 3 (13) | 1 (2) | 4 (5) | 4 (15) | |
↵4-150 Numbers in parentheses are percentages.