Variables | Univariate analysis | IPTW | |||
---|---|---|---|---|---|
Gasping during transportation n = 38 | No gasping during transportation n = 128 | P value | Std Dif | Std Dif | |
Age (y) | 61.0 (52.0, 70.8) | 59.5 (47.3, 69.0) | 0.435 | 0.172 | 0.052 |
Male sex, n (%) | 28 (73.7) | 100 (78.1) | 0.660 | 0.104 | 0.034 |
Cardiac arrest witnessed, n (%) | 34 (89.5) | 78 (60.9) | 0.001 | 0.700 | 0.341 |
Bystander CPR attempt, n (%) | 28 (73.7) | 60 (46.9) | 0.005 | 0.570 | 0.095 |
Initial recorded cardiac arrest rhythm, n (%) | Â | Â | 0.002 | Â | Â |
 VF or pulseless VT | 22 (57.9) | 89 (69.5) |  | 0.244 | 0.363 |
 Pulseless electrical activity | 14 (36.8) | 16 (12.5) |  | 0.589 | 0.492 |
 Asystole | 2 (5.3) | 23 (18.0) |  | – | – |
Aetiology of CA, n (%) | Â | Â | 1.000 | Â | Â |
 Cardiac, n (%) | 30 (78.9) | 101 (78.9) |  | 0.001 | 0.014 |
 No cardiac, n (%) | 8 (21.1) | 27 (21.1) |  |  |  |
  Pulmonary embolism | 1 | 2 |  |  |  |
  Subarachnoid haemorrhage | 0 | 3 |  |  |  |
  Accidental hypothermia | 3 | 11 |  |  |  |
  Acute aortic dissection | 1 | 2 |  |  |  |
  Respiratory disease |  |  |  |  |  |
   Pneumonia | 0 | 1 |  |  |  |
   Chronic obstructive pulmonary disease | 1 | 0 |  |  |  |
   Asthma | 1 | 0 |  |  |  |
   Other | 1 | 8 |  |  |  |
Epinephrine administration from EMS, mg | 1.0 (0.0, 2.0) | 2.0 (0.0, 3.0) | 0.025 | 0.443 | 0.083 |
Cardiac rhythm at admission | Â | Â | 0.009 | Â | Â |
 ROSC | 5 (13.2) | 5 (3.9) |  | 0.336 | 0.016 |
 VF or pulseless VT | 17 (44.7) | 61 (47.7) |  | 0.059 | 0.198 |
 Pulseless electrical activity | 15 (39.5) | 37 (28.9) |  | 0.224 | 0.544 |
 Asystole | 1 (2.6) | 25 (19.5) |  | – | – |
Low-flow duration, min | 40.5 (29.5, 51.3) | 46.0 (37.0, 54.0) | 0.049 | 0.397 | 0.130 |
No-flow duration, mina | 0.0 (0.0, 5.0), n = 35b | 6.0 (0.0, 10.0), n = 82b | 0.002 | 0.586 | 0.012 |
pH at admission, n = 162b | 6.914 (6.814, 7.012), n = 37 | 6.914 (6.815, 7.019), n = 125 | 0.795 | 0.104 | 0.128 |
Serum lactate at admission, n = 158b | 13.8 (9.5, 16.0), n = 36 | 12.7 (10.8, 15.1), n = 122 | 0.435 | 0.217 | 0.036 |
Epinephrine administration after admission, mg | 1.0 (0.0, 3.0) | 1.0 (0.0, 2.0) | 0.841 | 0.029 | 0.054 |
Intra-aortic balloon pumping, n (%) | 29 (76.3) | 86 (67.7) | 0.421 | 0.204 | 0.138 |
Percutaneous coronary intervention, n (%) | 16 (42.1) | 62 (48.8) | 0.579 | 0.127 | 0.280 |
Therapeutic temperature management, n (%) | 26 (68.4) | 84 (66.1) | 0.847 | 0.060 | 0.192 |
Outcomes | |||||
 Survival discharge, n (%) | 23 (60.5) | 44 (34.4) | 0.005 |  |  |
 CPC score 1–2 at hospital discharge, n (%) | 20 (52.6) | 14 (10.9) | < 0.001 |  |  |