Table 2.
Initial cardiac arrest rhythms of both transport groups and survivors, by site
| Group | Rhythm | Alabama | Iowa | Ottawa - OPALS Group, Ontario, Canada | Pittsburgh, Pennsylvania | Portland, Oregon | Seattle/King County, Washington | Toronto, Ontario, Canada | Vancouver, British Columbia, Canada | All Sites |
|---|---|---|---|---|---|---|---|---|---|---|
| Transport Initiated AFTER ROSC N=3359 (Survior n=926) | VF/VT/AED Shock: N (%) | 8 (47.0) | 50 (41.7) | 207 (39.8) | 45 (30.1) | 168 (41.3) | 283 (39.2) | 225 (34.8) | 362 (46.4) | 1348 (40.1) |
| Survived to discharge: n (%) | 2 (25.0) | 29 (58.0) | 69 (33.3) | 28 (62.2) | 84 (50.0) | 153 (54.1) | 97 (43.1) | 152 (42.0) | 614 (45.5) | |
| PEA: N (%) | 6 (35.3) | 17 (14.2) | 115 (22.1) | 41 (28.0) | 117 (28.8) | 246 (34.0) | 137 (21.2) | 150 (19.2) | 829 (24.7) | |
| Survived to discharge: n (%) | -- | 3 (17.6) | 15 (13.0) | 7 (17.1) | 23 (19.7) | 63 (25.6) | 19 (13.9) | 13 (8.7) | 143 (17.2) | |
| Asystole: N (%) | 1 (5.9) | 32 (26.7) | 99 (19.0) | 31 (21.2) | 108 (26.5) | 139 (19.3) | 186 (28.8) | 166 (21.3) | 762 (22.7) | |
| Survived to discharge: n (%) | -- | 7 (21.9) | 5 (5.1) | 0 (0) | 7 (6.5) | 10 (7.2) | 13 (7.0) | 5 (3.0) | 47 (6.2) | |
| AED No Shock: N (%) | 1 (5.9) | 6 (5.0) | 50 (9.6) | 4 (2.7) | 2 (0.5) | 15 (2.1) | 71 (11.0) | 74 (9.5) | 223 (6.6) | |
| Survived to discharge: n (%) | 1 (100) | 2 (33.3) | 4 (8.0) | 2 (50.0) | 1 (50.0) | 5 (13.3) | 11 (15.5) | 5 (6.8) | 31 (13.9) | |
| Cannot Determine/Missing: N (%) | 1 (5.9) | 15 (12.5) | 49 (9.4) | 25 (17.1) | 12 (2.9) | 39 (5.4) | 28 (4.3) | 28 (3.6) | 197 (5.9) | |
| Survived to discharge: n (%) | -- | 12 (80.0) | 17 (34.7) | 10 (40.0) | 5 (41.7) | 19 (48.7) | 14 (50.0) | 14 (50.0) | 91 (46.2) | |
| Transport Initiated without ROSC N=4586 (Survivor n=198) | VF/VT/AED Shock: N (%) | 84 (27.1) | 138 (25.8) | 324 (26.7) | 79 (19.9) | 145 (51.1) | 45 (38.1) | 332 (25.3) | 109 (26.3) | 1256 (27.4) |
| Survived to discharge: n (%) | 3 (3.6) | 17 (12.3) | 19 (5.9) | 6 (7.6) | 12 (8.3) | 15 (33.3) | 27 (8.1) | 15 (13.8) | 114 (9.1) | |
| PEA: N (%) | 97 (31.2) | 128 (23.9) | 259 (21.4) | 91 (22.9) | 70 (24.7) | 43 (36.4) | 228 (17.4) | 105 (25.3) | 1021 (22.3) | |
| Survived to discharge: n (%) | -- | 2 (1.6) | 5 (1.9) | 3 (3.3) | 3 (4.3) | 4 (9.3) | 3 (1.3) | 3 (2.9) | 23 (2.3) | |
| Asystole: N (%) | 90 (28.9) | 212 (39.6) | 408 (33.7) | 173 (43.6) | 60 (21.1) | 19 (16.1) | 303 (23.1) | 132 (31.8) | 1397 (30.5) | |
| Survived to discharge: n (%) | 1 (1.1) | 2 (0.9) | 4 (1.0) | 2 (1.1) | 2 (3.3) | 1 (5.3) | 3 (1.0) | 1 (0.8) | 16 (1.1) | |
| AED No Shock: N (%) | 15 (4.8) | 18 (3.4) | 113 (9.3) | 6 (1.5) | -- | 4 (3.4) | 400 (30.5) | 47 (11.3) | 603 (13.2) | |
| Survived to discharge: n (%) | -- | -- | -- | 1 (16.7) | -- | 1 (25.0) | 8 (2.0) | 2 (4.3) | 12 (2.0) | |
| Cannot Determine/Missing: N (%) | 25 (8.0) | 40 (7.5) | 108 (8.9) | 48 (12.1) | 9 (3.2) | 7 (5.9) | 50 (3.8) | 22 (5.3) | 309 (6.7) | |
| Survived to discharge: n (%) | -- | 2 (5.0) | 10 (9.3) | 2 (4.2) | 1 (11.1) | 4 (57.1) | 7 (14.0) | 7 (31.8) | 33 (10.7) | |