Age yrs | 73 (63–80) |
Age ≥65 yrs | 162 (71.1) |
Males | 139 (61) |
Smoking status | |
Current smokers | 55 (24.1) |
Exposure pack-yrs | 30 (11–60) |
Ex-smoker | 89 (39.0) |
Exposure pack-yrs | 48 (30–75) |
Coexisting illnesses | |
Neoplastic disease, not active | 30 (13.2) |
Heart disease | 84 (36.8) |
Cerebrovascular disease | 47 (20.6) |
COPD | 72 (31.6) |
Liver disease | 7 (3.1) |
Renal disease | 35 (15.4) |
Chronic renal disease | 27 (11.8) |
Diabetes mellitus | 44 (19.3) |
Bronchiectasis | 11 (4.8) |
Clinical findings | |
Antibiotic pre-treatment | 64 (28.1) |
Pre-enrolment duration of symptoms days | 3.5 (2–6) |
Altered mental status | 27 (11.8) |
Pulse >125 beats·min−1 | 20 (8.8) |
Respiratory rate ≥30 breaths·min−1 | 43 (18.9) |
Systolic BP <90 mmHg | 26 (11.4) |
Diastolic BP <60 mmHg | 46 (20.2) |
Body temperature <35 or >40°C | 3 (1.3) |
Radiographic findings | |
Unilobar radiograph | 190 (83.3) |
Multilobar/bilateral radiograph | 38 (16.7) |
Pleural effusion | 53 (23.2) |
PSI | |
Score | 102.9±40.0 |
Class I | 19 (8.3) |
Class II | 30 (13.2) |
Class III | 40 (17.5) |
Class IV | 85 (37.3) |
Class V | 54 (23.7) |
CURB-65 score | |
0 | 33 (14.5) |
1 | 60 (26.3) |
2 | 86 (37.7) |
3 | 32 (14.0) |
4 | 12 (5.3) |
5 | 5 (2.2) |
Aetiology | |
Typical bacterial | 57 (25.0) |
Viral/atypical bacterial | 57 (25.0) |
Mixed bacterial plus viral | 41 (18.0) |
Unknown | 73 (32.0) |
Data are presented as median (interquartile range), n (%) or mean±sd. COPD: chronic obstructive pulmonary disease; BP: blood pressure; PSI: Pneumonia Severity Index; CURB-65: confusion (abbreviated mental test score of ≤8), urea ≥7 mol·L−1, respiratory rate ≥30 breaths·min−1, blood pressure <90 mmHg systolic or <60 mmHg diastolic, and age ≥65 yrs.