Variable | All patients ( n  = 495) | Good neurologic Outcome ( n  = 75) | Poor neurologic Outcome ( n  = 420) |
---|---|---|---|
rSO2, median (25th, 75th percentiles), % b | 19 (15, 47) | 61 (43, 65) | 15 (15, 36) |
Hemoglobin, mean (SD), g/dl b | 12.1 (2.3) | 13.9 (2.1) | 11.7 (2.2) |
Oxy-Hb, median (25th, 75th percentiles) b | 2.3 (1.7, 5.2) | 8.3 (5.5, 9.7) | 2.2 (1.7, 3.9) |
Age, mean (SD), years b | 68 (16) | 59 (14) | 69 (15) |
Male sex, n (%)a | 330 (66.7) | 58 (77.3) | 272 (64.8) |
Location of cardiac arrest, n (%)b | Â | Â | Â |
Home | 261 (52.7) | 27 (36.0) | 234 (55.7) |
Nursing home/Assisted living | 48 (9.7) | 4 (5.3) | 44 (10.5) |
Public building | 43 (8.7) | 14 (18.7) | 29 (6.9) |
Street | 47 (9.5) | 12 (16.0) | 35 (8.3) |
Others | 96 (19.4) | 18 (24.0) | 78 (18.6) |
Bystander–witness status, n (%)b | 344 (69.5) | 67 (89.3) | 277 (66.0) |
Type of bystander witness status, n (%)b | Â | Â | Â |
No witness | 151 (30.5) | 8 (10.7) | 143 (34.0) |
Family member | 177 (35.8) | 27 (36.0) | 150 (35.7) |
EMS | 45 (9.1) | 8 (10.7) | 37 (8.8) |
Others | 122 (24.6) | 32 (42.7) | 90 (21.4) |
CPR initiated by bystander, n (%)b | 199 (40.2) | 47 (62.7) | 152 (36.2) |
Presumed cardiac etiology, n (%)b | 291 (58.8) | 64 (85.3) | 227 (54.0) |
Initial shockable rhythm, n (%)b | 121 (24.4) | 43 (57.3) | 78 (18.6) |
Pre-hospital procedures by EMS personnel, n (%) | Â | Â | Â |
Advanced airway devicea | 278 (56.2) | 25 (33.3) | 253 (60.2) |
Use of epinephrinea | 155 (31.3) | 13 (17.3) | 142 (33.8) |
Defibrillationb | 146 (29.5) | 50 (66.7) | 96 (22.9) |
Time from EMS call to hospital arrival, mean (SD), minb | 34.7 (14.5) | 30.3 (16.2) | 35.5 (14.0) |
Achievement of ROSC prior to hospital arrival, n (%)b | 119 (24.0) | 55 (73.3) | 64 (15.2) |
Treatment given after hospital arrival, n (%) | Â | Â | Â |
Coronary angiographyb | 137 (27.7) | 53 (70.7) | 84 (20.0) |
Primary percutaneous coronary interventionb | 57 (11.5) | 20 (26.7) | 37 (8.8) |
Therapeutic hypothermiab | 187 (37.8) | 56 (74.7) | 131 (31.2) |