| Characteristics |
Entire group(n=138) |
ventilated patients with respiratory isolates of |
P* |
|
A. baumannii(n=43) |
negative cultures
(n=95) |
|
Age, mean yrs (SD) |
50 (17.8) |
47 (18.5) |
51 (17.5) |
0.285 |
| Male |
57.2 |
65.1 |
53.7 |
0.209 |
| Ethnicity |
|
|
|
|
| Malays |
55.1 |
53.5 |
55.8 |
- |
| Chinese |
18.8 |
16.3 |
20.0 |
- |
| Indians |
23.9 |
27.9 |
22.1 |
0.880 |
| Clinical specimens |
|
|
|
|
| Tracheal aspirates |
96.4 |
97.7 |
95.8 |
- |
| Bronchial washings |
2.2 |
2.3 |
2.1 |
0.630 |
| Multi-organ failure, n |
|
|
|
|
| None |
20.3 |
14.0 |
23.2 |
- |
| 1 to 2 |
58.7 |
58.1 |
58.9 |
- |
| ≥3 |
21.0 |
27.9 |
17.9 |
0.266 |
| Comorbidity severity§ |
|
|
|
|
| 1 |
50.0 |
51.2 |
49.5 |
- |
| 2 |
45.7 |
44.2 |
46.3 |
- |
| 3 |
4.3 |
4.7 |
4.2 |
0.971 |
| Primary diseased condition |
|
|
|
|
| Heart/Lung |
50.7 |
39.5 |
55.8 |
- |
| Abdomen/Liver/Renal |
12.3 |
4.7 |
15.8 |
- |
| Neurology/Trauma/
Orthopaedic |
21.7 |
34.9 |
15.8 |
- |
| Infection/Hematology/
Metabolic/Obstetric |
15.2 |
20.9 |
12.6 |
0.013 |
| Presence of diseased lung€ |
|
|
|
|
| Yes |
57.2 |
51.2 |
60.0 |
- |
| No |
42.8 |
48.8 |
40.0 |
0.331 |
| Hospital mortality |
39.5 |
39.5 |
40.0 |
0.959 |
Figures are in percentages unless otherwise stated.
* p between A. baumannii and negative culture groups
¶ SAPS II scores 9: Simplified Acute Physiology Scores collected within the first 24
hrs of admission to intensive care unit
§ Comorbidity severity scoring [14]: 1= no important chronic disease; 2= moderate/
severe disease of heart, lungs, gastrointestinal tract; 3= any cancer (except skin),
end-stage renal/liver disease.
€ Defined as presence of lung pathology confirmed with radiological findings, which
included consolidation, fibrosis, pleural effusions and pneumothorax. |
