Univariate analysis of baseline factors determining progression
| All patients | ||||
|---|---|---|---|---|
| Variable | Event (n=12) | No event (n=44) | Relative risk (95% CI) | p Value* |
| *Fisher’s exact test. CI, confidence interval; LVDd, left ventricular diameter in diastole; LVEF, left ventricular ejection fraction; PCR, polymerase chain reaction; RBBB, right bundle branch block. | ||||
| Age ⩾60 years | 3 | 13 | 0.83 (0.27 to 2.39) | >0.9999 |
| Male sex | 9 | 12 | 5 (1.65 to 15.73) | 0.0053 |
| PCR positive | 6 | 5 | 4.09 (1.6 to 9.85) | 0.0083 |
| Abnormal ECG | 8 | 20 | 1.86 (0.68 to 5.32) | 0.3316 |
| RBBB | 4 | 8 | 1.83 (0.65 to 4.62) | 0.2626 |
| LVEF <50% | 4 | 6 | 2.3 (0.82 to 5.61) | 0.1958 |
| Abnornal LVDd | 4 | 7 | 2.04 (0.72 to 5.08) | 0.2239 |
| Medical history | ||||
| Hypertension | 1 | 14 | 0.24 (0.04 to 1.24) | 0.1492 |
| Hyperlipidaemia | 1 | 14 | 0.24 (0.04 to 1.24) | 0.1492 |
| Current cigarette use | 0 | 2 | 0 (infinity to 6.34) | >0.9999 |
| Familial history of ischaemic cardiomyopathy | 1 | 3 | 1.22 (0.18 to 7.5) | >0.9999 |
| Diabetes mellitus | 0 | 2 | 0 (infinity to 6.34) | >0.9999 |