Table 3.
Comparison between patients with or without respiratory virus detected in the non-fever/RS group
| Respiratory virus detected (n = 25) | No respiratory virus detected (n = 82) | p value | |
|---|---|---|---|
| Demographics | |||
| Median age in years (range) | 70 (39-93) | 64 (19-91) | 0.656 |
| Female | 15 (60.0) | 47 (57.3) | 1.000 |
| Underlying disease | |||
| Hypertension | 13 (52.0) | 44 (53.7) | 1.000 |
| Chronic heart disease | 10 (40.0) | 21 (25.6) | 0.209 |
| Chronic lung disease | 1 (4.0) | 6 (7.3) | 1.000 |
| Chronic liver disease | 2 (8.0) | 4 (4.9) | 0.623 |
| Chronic kidney disease | 3 (12.0) | 12 (14.6) | 1.000 |
| Neurological conditions | 1 (4.0) | 14 (17.1) | 0.184 |
| Peripheral vascular disease | 1 (4.0) | 1 (1.2) | 0.414 |
| Diabetes mellitus | 4 (16.0) | 27 (32.9) | 0.133 |
| Thyroid disease | 2 (8.0) | 3 (3.7) | 0.332 |
| Other endocrine disorders | 1 (4.0) | 9 (11.0) | 0.447 |
| Gout or pseudogout | 1 (4.0) | 5 (6.1) | 1.000 |
| Autoimmune disease | 2 (8.0) | 3 (3.7) | 0.332 |
| Solid organ malignancy | 2 (8.0) | 11 (13.4) | 0.728 |
| Haematological malignancy | 1 (4.0) | 4 (4.9) | 1.000 |
| Transplant recipient | 1 (4.0) | 1 (1.2) | 0.414 |
| Clinical features at presentation | |||
| Chest discomfort | 11 (44.0) | 18 (22.0) | 0.040 |
| Palpitation/arrhythmia | 5 (20.0) | 14 (17.1) | 0.768 |
| Limb oedema | 1 (4.0) | 7 (8.5) | 0.678 |
| High blood pressure | 2 (8.0) | 2 (2.4) | 0.232 |
| Syncope | 2 (8.0) | 7 (8.5) | 1.000 |
| Seizure | 0 (0) | 4 (4.9) | 0.571 |
| Dizziness | 6 (24.0) | 16 (19.5) | 0.587 |
| Numbness/weakness | 1 (4.0) | 9 (11.0) | 0.447 |
| Headache | 0 (0) | 3 (3.7) | 1.000 |
| Confusion | 0 (0) | 1 (1.2) | 1.000 |
| Gastrointestinal symptoms | 3 (12.0) | 17 (20.7) | 0.395 |
| Endocrine or electrolyte disturbance | 1 (4.0) | 5 (6.1) | 1.000 |
| Trauma | 0 (0) | 4 (4.9) | 0.571 |
| Initial laboratory findings, median (interquartile range) | |||
| Total white blood cell count, × 109 cells/L | 7.0 (5.8–8.5) | 7.1 (6.0–9.0) | 0.941 |
| Neutrophil count, × 109 cells/L | 4.7 (3.2–5.7) | 4.6 (3.9–6.7) | 0.397 |
| Lymphocyte count, × 109 cells/L | 1.64 (1.18–2.15) | 1.47 (1.04–1.96) | 0.383 |
| Platelet count, × 109 cells/L | 226 (187–251) | 206 (177–285) | 0.924 |
| Final diagnosis | |||
| Myocardial infarction or angina | 1 (4.0) | 2 (2.4) | 0.554 |
| Arrhythmia | 4 (16.0) | 7 (8.5) | 0.279 |
| Stroke/transient ischaemic attack | 1 (4.0) | 7 (8.5) | 0.678 |
| Poorly controlled hypertension | 2 (8.0) | 4 (4.9) | 0.623 |
| Outcome | |||
| Require oxygen supplement | 2 (8.0) | 2 (2.4) | 0.232 |
| ICU or CCU admission | 0 (0) | 2 (2.4) | 1.000 |
| Death | 0 (0) | 1 (1.2) | 1.000 |
Abbreviations: CCU, coronary care unit; ICU, intensive care unit.
Data expressed as n (%) unless otherwise stated.