0–1 risk factors (N=130) | >1 risk factor (N=49) | p Value | |||
---|---|---|---|---|---|
Previous pericarditis | 17/129 | 13.2% (7.9% to20.3%) | 16/33 | 48.5% (30.8% to 66.5%) | 0.004 |
Retrosternal pain | 73/117 | 62.4% (39.2% to 57.9%) | 32/39 | 82.1% (66.5% to 92.5%) | 0.030 |
Dyspnoea | 37/98 | 37.8% (28.2% to 48.2%) | 22/36 | 61.1% (43.5% to 76.8%) | 0.013 |
Nausea | 7/53 | 13.2% (5.5% to 25.3%) | 9/22 | 40.9% (20.7% to 63.6%) | 0.013 |
Elevated CRP | 18/44 | 40.9% (26.3% to 56.7%) | 24/31 | 77.4% (58.9% to 90.4%) | 0.002 |
Abnormal CXR | 20/116 | 17.2% (10.8% to 25.3%) | 16/42 | 38.1% (23.6% to 54.4%) | 0.009 |
Treatment with colchicines | 6/130 | 4.6% (1.7% to 9.8%) | 9/49 | 18.4% (8.8% to 32.1%) | 0.006 |
Cardiology consultation | 23/130 | 17.7% (11.6% to 25.4%) | 25/49 | 51.0% (36.3% to 65.6%) | 0.001 |
Admitted | 22/130 | 16.9% (10.9% to 24.5%) | 26/49 | 53.1% (38.3% to 67.5%) | <0.001 |
Clinic follow-up | 27/99 | 27.3% (18.8% to 37.2%) | 27/42 | 64.3% (48.0% to 78.5%) | <0.001 |
Proportions are described as percentage (95% CI).
CRP, C reactive protein; CXR, chest x-ray.
Risk factors=Abnormal vital signs (heart rate >100/min, systolic blood pressure <90 mm Hg, respiratory rate >20/min), representation, subacute onset (2 days to 2 weeks), fever >38°C, elevated troponin, abnormal white cell count or neutophilia, elevated jugular venous pressure.