Variable | Aalborg University Hospital (n = 34) | Aarhus University Hospital (n = 138) | Odense University Hospital (n = 55) | Copenhagen University Hospital (n = 32) | P-value |
---|---|---|---|---|---|
No. of MCS/mio-inhabitants*year | 11.6 | 11.2 | 8.9 | 2.8 | < 0.001 |
Age < 65 years | 26 (76) | 113 (82) | 51 (93) | 31 (97) | 0.03 |
Initial presenting rhythm | 0.003 | ||||
Shockable VT/VF | 19 (56) | 82 (59) | 44 (80) | 28 (88) | |
PEA | 11 (32) | 38 (28) | 4 (7) | 4 (13) | |
Asystole | 3 (9) | 18 (13) | 7 (13) | 0 (0) | |
Unknown | 1 (3) | 0 (0) | 0 (0) | 0 (0) | |
Witnessed arrest | 31 (91) | 114 (83) | 49 (89) | 29 (91) | 0.38 |
Bystander CPR | 31 (91) | 134 (97) | 52 (95) | 29 (91) | 0.42 |
No-flow ≥ 10 min | 0 (0) | 10 (7) | 0 (0) | 1 (3) | 0.07 |
Pre-hospital low-flow (min) | 60 [43–77] | 75 [60–90] | 77 [65–99] | 60 [48–70] | < 0.001 |
Total low-flow (min) | 90 [62–110] | 105 [88–125] | 119 [105–127] | 94 [81–130] | < 0.001 |
Distance to center ≥ 100 km | 2 (6) | 21 (15) | 19 (35) | 0 (0) | 0.001 |
30-day survival | 5 (15) | 38 (28) | 14 (25) | 9 (28) | 0.41 |