|
Metropolitan (n=1048)
|
Non-metropolitan (n=617)
|
p value
|
Transferred in n (%) | 95 (9) | 138 (23) | 0.004 |
Male sex | 64 | 68 | 0.069 |
Age group |
⩽60 | 26 | 31 | 0.007 |
61–70 | 25 | 28 | |
>70 | 49 | 41 | |
Pulse rate |
<80 | 47 | 48 | |
80–<110 | 39 | 43 | |
⩾110 | 14 | 10 | 0.013 |
Systolic BP |
<100 | 8 | 6 | |
100–180 | 81 | 83 | |
>180 | 12 | 11 | 0.310 |
Raised JVP | 11 | 7 | 0.059 |
Basal crepitations | 38 | 28 | 0.024 |
Pulmonary oedema | 30 | 25 | 0.129 |
Admission in cardiac arrest | 7 | 5 | 0.154 |
ST elevation on ECG |
Yes | 53 | 59 | |
No | 40 | 39 | |
Not recorded | 6 | 2 | 0.108 |
ST depression on ECG |
Yes | 56 | 68 | |
No | 37 | 30 | |
Not recorded | 7 | 2 | 0.010 |
LBBB on ECG |
Yes | 7 | 5 | |
No | 82 | 93 | |
Not recorded | 11 | 3 | 0.006 |
History |
AMI | 26 | 22 | |
Angina or revascularisation | 17 | 16 | |
No history | 57 | 62 | 0.316 |
Diabetes | 13 | 15 | 0.420 |
Infarct position |
anterior | 29 | 31 | |
inferior | 34 | 37 | |
other | 25 | 19 | |
Not recorded | 12 | 14 | 0.358 |
Cardiomegaly on radiography | 25 | 23 | 0.562 |
Principal symptom precipitating admission |
Chest pain | 77 | 82 | |
Other | 23 | 18 | 0.102 |
Reinfarction within 24 hours | 7 | 6 | 0.213 |
Recurrent chest pain within 24 hours | 37 | 40 | 0.625 |
Health insurance: patient classification for this admission |
Chargeable | 21 | 19 | |
Veterans affairs - chargeable | 7 | 7 | |
Non-chargeable | 72 | 73 | 0.745 |
Hospital treatment |
Ace inhibitor | 50 | 42 | 0.068 |
Aspirin | 88 | 81 | 0.004 |
β blocker | 57 | 47 | 0.011 |
Intravenous heparin | 79 | 64 | 0.007 |
Intravenous nitrate | 39 | 37 | 0.791 |
Thrombolysis | 36 | 41 | 0.138 |