Table 1

 Baseline characteristics and outcome measures of patients with pneumonia (N = 1016)

Baseline characteristicsMean (SD), range or n (%)
COPD, chronic obstructive pulmonary disease; ICU, intensive care unit; LOS, length of stay.
*All data are means (SD) unless stated otherwise.
†The lungs were divided artificially into six zones in the radiograph: right and left upper, middle and lower zones.
Age72 (7.2), 17–103
Male, n (%)583 (57.4%)
Nursing home, n (%)247 (24.3%)
Coexisting illness
    Congestive heart failure, n (%)124 (12.2%)
    COPD, n (%)167 (16.4%)
    Bronchiectasis, n (%)22 (2.2%)
    Asthma, n (%)50 (4.9%)
    Pneumoconiosis, n (%)2 (0.2%)
    Old pulmonary tuberculosis, n (%)85 (8.4%)
    Cerebrovascular disease, n (%)176 (17.3%)
    Neoplastic disease, n (%)1 (0.1%)
    Renal disease, n (%)84 (8.3%)
    Liver disease, n (%)13 (1.3%)
Clinical parameters
    Pulse rate101 (19.9), 43–161
    Systolic blood pressure142 (28.2), 65–247
    Diastolic blood pressure72 (15.5), 40–140
    Temperature38 (1.1), 34–42
    Respiratory rate25 (5.8), 14–48
    Glasgow Coma Score15 (0.8), 3–15
    O2 saturation (Sao2%)95 (4.4), 70–100
Laboratory results
    Sodium (mmol/l)136.0 (6.1), 111–264
    Urea (mmol/l)7.9 (5.9), 1.1–53
    Glucose (mmol/l)7.3 (2.4), 0.3–24.6
    Arterial pH7.4 (0.06), 6.6–7.6
    Haematocrit0.35 (0.06), 0.14–0.71
Radiographic findings
    Bilateral lung involvement, n (%)280 (27.6%)
    >2 zones involvement†, n (%)276 (27.2%)
    Pleural effusion, n (%)99 (9.7%)
Outcome measures
    30 day mortality, n (%)87 (8.6%)
    ICU admission, n (%)41 (4.0%)
    Mechanical ventilation, n (%)25 (2.5%)
    Hospital LOS (days)9.3 (8.5)