Total | No ROSC | ROSC | P value | |
---|---|---|---|---|
( n = 49) | ( n = 30) | 19) | ||
Male | 31 (63) | 23 (77) | 8 (42) | 0.03 |
Age | 73 (±17) | 69 (±17) | 70 (16) | 0.85 |
First recorded rhythm | ||||
Ventricular fibrillation | 12 (24) | 6 (20) | 6 (32) | 0.50 |
Asystole | 31 (63) | 20 (67) | 11 (58) | 0.56 |
Pulseless electric activity | 6 (15) | 4 (13) | 2 (11) | 1.00 |
Bystander witnessed cardiac arrest | 26 (53) | 14 (47) | 12 (63) | 0.38 |
EMS witnessed cardiac arrest | 3 (6) | 1 (3) | 2 (11) | 0.55 |
Bystander CPR | 29 (59) | 20 (67) | 9 (47) | 0.24 |
BLS duration (minutes) | ||||
Total | 12 (9 to 16) | 13 (10 to 16.75) | 10 (4 to 12) | 0.01 |
Bystander | 10 (5.5 to 15) | 10 (7.5 to 15) | 5 (4 to 11.5) | 0.02 |
Paramedic | 6.5 (4 to 10) | 8 (5 to 12) | 4 (4 to 8.5) | 0.03 |
ALS duration (minutes) | 21 (15.5 to 31) | 25 (20 to 32.75) | 16 (10 to 30) | 0.02 |
Response time (minutes) | ||||
Time (call to ALS) | 13 (11 to 15) | 14 (12 to 17.25) | 12 (8 to 15) | 0.01 |
Time (call to BLS) | 0 (0 to 4) | 0 (0 to 4.75) | 2 (0 to 4) | 0.48 |
Time (ALS to sensor placement) | 3 (1 to 9) | 5 (1.75 to 12) | 2 (0 to 6) | 0.15 |
Epinephrine dosage (mg) | 5 (3 to 8) | 5 (4 to 8) | 4 (2 to 8) | 0.11 |