Table 1 Baseline characteristics of the whole population (n = 362) at admission to the ICU
From: Community-acquired polymicrobial pneumonia in the intensive care unit: aetiology and prognosis
General characteristic | Value |
|---|---|
Demographics | |
Age (years) | 63.4 ± 16.5 |
Sex (male) | 232 (64%) |
Current smoking | 110 (31%) |
Current alcohol abuse | 77 (22%) |
Previous antibiotic | 67 (21%) |
Influenza vaccine | 140 (47%) |
Pneumococcal vaccine | 43 (14%) |
Inhaled corticosteroid | 89 (25%) |
Systemic corticosteroid | 23 (7%) |
Co-morbidity | |
Chronic respiratory disease | 134 (37%) |
Chronic obstructive pulmonary disease | 59 (16%) |
Asthma | 21 (6%) |
Bronchiectasis | 9 (3%) |
Other | 45 (12%) |
Chronic cardiovascular disease | 50 (14%) |
Diabetes mellitus | 70 (20%) |
Neurological disease | 68 (19%) |
Chronic renal disease | 23 (6%) |
Chronic liver disease | 23 (6%) |
Clinical findings | |
Fever | 281 (78%) |
Diastolic blood pressure (mmHg) | 70 (21) |
Systolic blood pressure (mmHg) | 120 (50) |
Laboratory findings | |
Creatinine (mg/dl) | 1.1 (0.7) |
C-reactive protein level (mg/dl) | 22.4 (20.8) |
White blood cell count (109 cells/l) | 13.4 (10.5) |
Platelet count (109 platelets/l) | 235.0 (127.0) |
Oxygen saturation (%) | 91.4 (8.5) |
PaO2/FIO2 | 247.6 (99.5) |
Pneumonia severity index | |
I to III | 96 (27%) |
IV | 129 (37%) |
V | 126 (36%) |
Bacteraemia | 63 (18%) |
Multilobar infiltration | 159 (44%) |
Pleural effusion | 79 (22%) |
Severe community-acquired pneumonia | 201 (66%) |
Mechanical ventilation | 135 (44%) |
Septic shock | 72 (20%) |
ARDS criteria | 26 (7%) |
Length of hospital stay (days) | 11.0 (9.0) |
Thirty-day mortality | 37 (10%) |