Table 1 Patients’ characteristics, precipitating factors and prehospital features
Characteristic in median ± IQR unless otherwise stated | Patients received BCPAP (N = 16 unless otherwise stated) | Patients did not receive BCPAP (N = 43 unless otherwise stated) | p-value |
|---|---|---|---|
Age, years | 85 ±10 | 84 ± 10 | 0.26 |
Male (%) | 50 | 47 | 0.81 |
History | Â | Â | Â |
History of admission for CHF, % | 19 | 16 | 1.0 |
History of ACS, % | 38 | 33 | 0.72 |
History of AP, % | 25 | 14 | 0.44 |
History of CHF, % | 31 | 37 | 0.67 |
History of COPD, % | 13 | 14 | 1.0 |
Precipitating factors | Â | Â | Â |
AMI with ST elevation, % | 0 | 0 (N = 41) | - |
AMI without ST elevation, % | 31 | 19 (N = 41) | 0.48 |
No AMI, % | 69 | 77 (N = 41) | 0.48 |
Prehospital features | Â | Â | Â |
Pulse oximetry, % | 70 ± 22 (N = 13) | 88 ±11 (N = 32) | 0.002 |
Heart rate, beats/min | 111 ± 28 (N = 11) | 110 ± 31 (N = 30) | 0.25 |
Systolic blood pressure, mmHg | 169 ± 35 (N = 13) | 162 ± 50 (N = 30) | 0.60 |
Diastolic blood pressure, mmHg | 104 ± 32 (N = 13) | 98 ± 34 (N = 30) | 0.58 |
Prehospital treatment time, min | 30 ± 11 (N = 11) | 39 ± 20 (N = 30) | 0.08 |