Age (years)* | 65.72 (11.79) | 52.86 (17.35) | 0.00 |
Retrosternal chest pain | 0.89 (0.31) | 0.64 (0.48) | 0.00 |
Pain worse on inspiration | 0.01 (0.09) | 0.28 (0.45) | 0.00 |
Worse with changes in posture | 0.03 (0.16) | 0.28 (0.45) | 0.00 |
Pain described as sharp | 0.11 (0.31) | 0.38 (0.49) | 0.00 |
Sweating | 0.61 (0.49) | 0.29 (0.45) | 0.00 |
Crackles | 0.26 (0.44) | 0.03 (0.18) | 0.00 |
Hypoperfusion | 0.10 (0.30) | 0.00 (0.05) | 0.00 |
ST elevation | 0.32 (0.47) | 0.01 (0.10) | 0.00 |
ST depression | 0.51 (0.50) | 0.01 (0.11) | 0.00 |
T wave inversion | 0.44 (0.50) | 0.04 (0.19) | 0.00 |
Pain radiating to left arm | 0.61 (0.49) | 0.38 (0.48) | 0.00 |
New Q waves | 0.09 (0.29) | 0.00 (0.06) | 0.00 |
Pain described as tight | 0.69 (0.46) | 0.46 (0.50) | 0.00 |
Pain radiating to left chest | 0.15 (0.35) | 0.35 (0.48) | 0.00 |
Nausea/vomiting | 0.18 (0.39) | 0.06 (0.23) | 0.00 |
Pain radiating to right arm | 0.26 (0.44) | 0.11 (0.32) | 0.00 |
Worse than previous angina | 0.39 (0.49) | 0.22 (0.42) | 0.00 |
Episodic pain | 0.02 (0.13) | 0.11 (0.31) | 0.00 |
Chest wall tenderness | 0.00 (0.00) | 0.07 (0.25) | 0.00 |
Duration (hours)* | 10.36 (24.90) | 21.56 (40.38) | 0.00 |
Previous angina | 0.54 (0.50) | 0.38 (0.49) | 0.00 |
Pain radiating to right chest | 0.06 (0.23) | 0.15 (0.36) | 0.00 |
Old ischaemia on ECG | 0.05 (0.22) | 0.11 (0.32) | 0.00 |
Former smoker | 0.29 (0.45) | 0.20 (0.40) | 0.00 |
Hypertension | 0.21 (0.40) | 0.13 (0.34) | 0.00 |
Previous MI | 0.39 (0.49) | 0.30 (0.46) | 0.00 |
Diabetes | 0.10 (0.30) | 0.05 (0.22) | 0.00 |
Chest pain is major symptom | 0.97 (0.16) | 0.94 (0.24) | 0.01 |
Added heart sounds | 0.01 (0.10) | 0.00 (0.04) | 0.02 |
Cardiac rhythm | 0.06 (0.23) | 0.04 (0.19) | 0.09 |
Old MI on ECG | 0.10 (0.30) | 0.13 (0.34) | 0.13 |
Family history of IHD | 0.25 (0.43) | 0.21 (0.41) | 0.14 |
Shortness of breath | 0.44 (0.50) | 0.41 (0.49) | 0.29 |
Smoker | 0.36 (0.48) | 0.38 (0.49) | 0.33 |
Syncope | 0.04 (0.20) | 0.03 (0.18) | 0.48 |
Hyperlipidaemia | 0.03 (0.18) | 0.03 (0.16) | 0.52 |
Bundle branch block | 0.07 (0.26) | 0.06 (0.25) | 0.58 |
Sex (male = 1) | 0.66 (0.47) | 0.66 (0.47) | 0.93 |
Pain radiating to back | 0.11 (0.31) | 0.10 (0.31) | 0.96 |