Patient characteristic | Odds ratio (95% CI) | p value |
Non-metropolitanv Metropolitan2-150 | 1.90 (1.21, 3.23) | 0.018 |
Transfer yesv no2-150 | 1.10 (0.58, 2.08) | 0.771 |
Age group | ||
⩽60 | 0.12 (0.06, 0.25) | <0.001 |
61–70 | 0.14 (0.07, 0.25) | <0.001 |
>70 | 1 | |
Sex (male v female) | 0.54 (0.35, 0.83) | 0.006 |
Pulse | ||
<80 | 1 | |
80–<110 | 1.57 (0.96, 2.54) | 0.069 |
⩾110 | 1.09 (0.53, 2.22) | 0.812 |
Systolic blood pressure | ||
<100 | 2.93 (1.47, 5.87) | 0.003 |
100–180 | 1 | |
>180 | 0.73 (0.39, 1.36) | 0.310 |
Raised JVP | 1.18 (0.62, 2.26) | 0.599 |
Lungs basal crepitations | 1.41 (0.99, 2.01) | 0.056 |
Pulmonary oedema | 1.66 (1.03, 2.65) | 0.036 |
Cardiac arrest | 6.29 (2.68, 14.75) | <0.001 |
ST increase | ||
Yes | 3.02 (1.88, 4.87) | <0.001 |
No | 1 | |
Not recorded | 3.43 (1.60, 7.34) | 0.002 |
ST depression | ||
Yes | 1.36 (0.77, 2.39) | 0.283 |
No | 1 | |
Not recorded | 2.68 (0.85, 8.40) | 0.089 |
LBBB | ||
Yes | 1.24 (0.63, 2.46) | 0.523 |
No | 1 | |
Not recorded | 1.28 (0.68, 2.42) | 0.436 |
History | ||
Previous AMI | 0.66 (0.37, 1.17) | 0.152 |
Angina or revascularisation | 1.11 (0.64, 1.93) | 0.696 |
No history | 1 | |
Diabetes | 1.18 (0.70, 2.01) | 0.528 |
Position | ||
Anterior | 1 | |
Inferior | 0.80 (0.43, 1.51) | 0.487 |
Other | 1.55 (0.73, 3.30) | 0.245 |
Not recorded | 1.85 (0.94, 3.61) | 0.073 |
Cardiomegaly | 0.62 (0.39, 0.99) | 0.044 |
Principal symptom precipitating admission | ||
Chest painv other | 0.58 (0.34, 1.01) | 0.053 |
Reinfarction | 5.61 (2.91, 10.83) | <0.001 |
Recurrent chest pain | 0.65 (0.39, 1.08) | 0.092 |
Insurance | ||
Chargeable | 1 | |
Veterans affairs non-chargeable | 1.67 (0.78, 3.56) | 0.179 |
Non-chargeable | 2.38 (1.50, 3.78) | <0.001 |
↵2-150 For non-transferred patients the odds ratio (95% CI) was 1.58 (0.95, 2.63) while for transferred patients it was 9.74 (1.32, 71.95).