Table 3.
Bacterial etiology determined at local and central laboratories by sterile site sample.
| Laboratory | Sample origin | Characteristics | Categories | Inpatientsa Nc = 385 |
Outpatientsb N = 238 |
Total N = 623 |
|---|---|---|---|---|---|---|
| nd (%) | n (%) | n (%) | ||||
| Local hospital | Blood | Sample collected | Yes | 385 (100) | 238 (100) | 623 (100) |
| Bacterial species identified | Streptoccoccus pneumoniae | 27 (7.0) | 20 (8.4) | 47 (7.6) | ||
| Haemophilus influenzae | 3 (0.8) | 0 (0.0) | 3 (0.5) | |||
| Other | 354 (92.2) | 218 (91.6) | 572 (92.0) | |||
| Missing/NA | 1 (–) | 0 (–) | 1 (–) | |||
| Cerebro-spinal fluid | Sample collected | Yes | 80 (20.8) | 45 (18.9) | 125 (20.1) | |
| Bacterial species identified | S. pneumoniae | 4 (5.1) | 4 (8.9) | 8 (6.5) | ||
| Other | 75 (94.9) | 41 (91.1) | 116 (93.5) | |||
| Missing/NA | 306 (–) | 193 (–) | 499 (–) | |||
| Pleural fluid | Sample collected | Yes | 1 (0.3) | 1 (0.4) | 2 (0.3) | |
| Bacterial species identified | Other | 1 (100) | 1 (100) | 2 (100) | ||
| Missing/NA | 384 (–) | 237 (–) | 621 (–) | |||
| Otherc normally sterile site | Sample collected | Yes | 4 (1.0) | 13 (5.5) | 17 (2.7) | |
| Bacterial species identified | Other | 4 (100) | 13 (100) | 17 (100) | ||
| Missing/NA | 381 (–) | 225 (–) | 606 (–) | |||
| Central laboratory | Blood | Sample received | Yes | 28 (7.3) | 20 (8.4) | 48 (7.7) |
| Bacterial species identified | S. pneumoniae | 26 (92.9) | 20 (100) | 46 (95.8) | ||
| H. influenzae | 2 (7.1) | 0 (0.0) | 2 (4.2) | |||
| Missing/NA | 357 (–) | 218 (–) | 575 (–) | |||
| Cerebro-spinal fluid | Sample received | Yes | 1 (0.3) | 0 (0.0) | 1 (0.2) | |
| Bacterial species identified | S. pneumoniae | 1 (100) | 0 (–) | 1 (100) | ||
| Missing/NA | 384 (–) | 238 (–) | 622 (–) |
NA = not applicable.
a
Hospitalized patients with at least one overnight stay in hospital before diagnosis.
b
Outpatients and patients brought to emergency room.
c
Total number of episodes. Bacterial species except S. pneumoniae, H. influenzae and Neisseria meningitides.
d
Number (percentage) of episodes in the specified category.