Table 1.
Patient characteristics
| Characteristics | |
Blood cultured |
||
|---|---|---|---|---|
| Total n = 11.988 | Not blood-cultured n = 6.489* | Non-bacteraemic patients n = 5.081* | Bacteraemic patients n = 418* | |
| Age, median 66 years (range 15–103) |
|
|
|
|
| - 15–64 |
5799 |
3442 (59.4) |
2205 (38.0) |
152 (2.6) |
| - 65–79 |
2974 |
1447 (48.7) |
1384 (46.5) |
143 (4.8) |
| - ≥ 80 |
3215 |
1600 (49.8) |
1492 (46.4) |
123 (3.8) |
| Sex |
|
|
|
|
| - Male |
5492 |
2861 (52.1) |
2396 (43.6) |
235 (4.3) |
| - Female |
6496 |
3628 (55.8) |
2685 (41.4) |
183 (2.8) |
| Body temperature > 38.0 or < 36.0 C° |
2479 |
336 (13.6) |
1892 (76.3) |
251 (10.1) |
| Heart rate ≥ 90 bpm |
4530 |
1807 (39.9) |
2473 (54.6) |
250 (5.5) |
| Respiratory freq ≥ 20 breaths/minute |
2750 |
848 (30.8) |
1704 (62.0) |
198 (7.2) |
| Bloodpressure ≤ 90 mmHg |
322 |
119 (36.9) |
159 (49.4) |
44 (13.7) |
| Oxygen saturation ≤ 90% |
565 |
177 (31.3) |
349 (61.8) |
39 (6.9) |
| PaO2 ≤ 10.0 kPa |
1883 |
593 (31.5) |
1164 (61.8) |
126 (6.7) |
| Leukocyte count ≥ 12.0 or ≤ 4.0 × 109/L |
3904 |
1370 (35.1) |
2285 (58.5) |
249 (6.4) |
| Neutrophil count ≥7.0 × 109/L or ≤ 2.0 × 109/L |
6286 |
2633 (41.9) |
3319 (52.8) |
334 (5.3) |
| CRP ≥ 10 mg/dL |
6596 |
2218 (33.6) |
3990 (60.5) |
388 (5.9) |
| CRP ≥ 100 mg/dL |
2341 |
331 (14.2) |
1733 (74.0) |
277 (11.8) |
| Lactate ≥ 2.0 mmol/L |
765 |
282 (36.9) |
422 (55.1) |
61 (8.0) |
| pH ≤ 7.35 |
482 |
173 (35.9) |
289 (60.0) |
20 (4.1) |
| Creatinine ≥ 177 μmol/L |
868 |
369 (42.5) |
424 (48.9) |
75 (8.6) |
| SIRS |
|
|
|
|
| No SIRS |
8141 |
5518 (72.0) |
2506 (32.7) |
117 (1.5) |
| SIRS |
3847 |
971 (25.3) |
2575 (66.9) |
301 (7.8) |
| Charlson Comorbidity Score |
|
|
|
|
| - 0 |
5510 |
3252 (59.0) |
2106 (38.2) |
152 (2.8) |
| - 1 |
2649 |
1423 (53.7) |
1135 (42.9) |
91 (3.4) |
| - ≥2 | 3829 | 1814 (47.4) | 1840 (48.0) | 175 (4.6) |
Baseline characteristics of all adult first-time admissions to the Medical Emergency Department. Data based on initial vital values and standard blood samples. CRP: C-reactive protein. SIRS: Systemic Inflammatory Response Syndrome. *The percent is presented horizontally, and can be interpreted as the positive predictive value for the specific variable among the bacteraemic patients.