Table 2.
Characteristics of the study population
| Demographics | Total n = 128 |
|---|---|
| Age (years), median(IQR) | 74 (63–82) |
| Male, n(%) | 66 (52%) |
| Body Mass Index, median(IQR)a | 26 (24–30) |
| Chronic pulmonary disease, n(%)b | 53 (41%) |
| Symptoms & finding | |
| Dyspnoea, n(%) | 91 (71%) |
| Cough, n(%) | 98 (77%) |
| Expectoration, n(%) | 80 (63%) |
| History of fever/fever symptoms, n(%) | 87 (68%) |
| Temperature ≥ 38 or < 36 degrees Celsius in the ED, n(%) | 37 (29%) |
| Triage levelc, n(%)d | |
| Resuscitation | 11 (9%) |
| Emergent | 40 (33%) |
| Urgent | 61 (50%) |
| Non-urgent | 11 (9%) |
| ULD-CT | |
| Presence of CAP on ULD-CT by radiologist’s assessment, n(%) | 72 (56%) |
| Hours from admission to hospital until the scan was performed, median(IQR)d | 2.4 (1.8–3.1) |
| ULD-CT image quality, assessed by radiologist, n(%) | |
| Poor/non-diagnostic. Not possible to diagnose or exclude any pathology | 1 (1%) |
| Suboptimal. Possible to diagnose or exclude rough pathology | 33 (26%) |
| Optimal. Any potential pathology can be visualized, but resolution is imperfect | 94 (73%) |
| Near perfect | 0 (0%) |
Percentages were rounded to the nearest whole number, so the total may not equal exactly 100%. ULD-CT: Ultralow-dose computed tomography.a Missing = 33 (26%)—Data not available from the records or from interview.b Including (but not limited to) chronic obstructive pulmonary disease, asthma, current or prior lung cancer, pulmonary fibrosis.c Danish Emergency Process Triage [21] based on vital signs at arrival. d Missing values = 5