Distribution of microorganisms by age in patients with fibropurulent empyema (n = 243; 121* isolates from 117 patients)
| Pathogens | Age groups | Total | |||
|---|---|---|---|---|---|
| <1 year (n = 57) | 0–4 years (n = 150) | 5–9 years (n = 62) | ⩾10 years (n = 31) | ||
| *Four patients grew two microorganisms. | |||||
| †Percentages in parenthesis are of total patients in the respective age group. | |||||
| Staphylococcus | 21 (37%)† | 61 (41%) | 18 (29%) | 11 (35.5%) | 90/121 |
| Gram negative rods | 3 (5 %) | 3 (2 %) | 8 (13%) | 3 (10%) | 14/121 |
| Pneumococcus | 1 | 3 (2 %) | 2 (3 %) | 5 (16%) | 10/121 |
| S pyogenes | 0 | 1 | 0 | 0 | 1 |
| E fecalis | 0 | 0 | 1 | 1 | 2 |
| H influenzae | 1 | 1 | 1 | 0 | 2 |
| Anaerobes | 0 | 1 | 1 | 0 | 2 |