Table 2.
Clinical manifestations and laboratory findings at initial presentation
| Findings | No. of patients (%) (n = 955)a |
|---|---|
| Symptoms | |
| Cough | 743/801 (92.8) |
| Purulent sputum | 684/776 (88.1) |
| Dyspnoea | 479/766 (62.5) |
| Chest pain | 264/941 (28.1) |
| Altered mentality | 86/801 (10.7) |
| Signs | |
| Respiratory rate >30/min | 89/955 (9.3) |
| Heart rate ≥125/min | 66/955 (6.9) |
| Temperature ≥40 °C or < 35 °C | 52/955 (5.4) |
| SBP <90 mmHg | 29/955 (3.0) |
| Laboratory findings | |
| WBC ≥10 000/mm3 | 588/882 (66.7) |
| BUN ≥ 30 mg/dL | 164/847 (19.4) |
| PaO2 <60 mmHg or SaO2 < 90% | 122/831 (14.7) |
| Haematocrit <30% | 97/879 (11.0) |
| Serum sodium <130 mEq/L | 79/856 (9.2) |
| Glucose ≥250 mg/dL | 75/840 (8.9) |
| Arterial pH <7.35 | 52/750 (6.9) |
| Radiological findings | |
| Lobar pneumonia | 380/861 (44.1) |
| Bronchopneumonia | 396/861 (46.0) |
| Interstitial pneumonia | 85/861 (9.9) |
| Multilobar involvement | 303/859 (35.3) |
| Pleural effusion | 137/915 (15.0) |
| Pneumonia severity index | |
| I | 214/929 (23.0) |
| II | 281/929 (30.2) |
| III | 170/929 (18.3) |
| IV | 193/929 (20.8) |
| V | 71/929 (7.6) |
SBP, systolic blood pressure; WBC, white blood cells; BUN, blood urea nitrogen; PaO2, partial pressure of oxygen in arterial blood; SaO2, arterial oxygen saturation.
a
Exact numbers are given for each variable; information was not available for all patients.