Table 2 Baseline characteristics evolution over the years
All | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | P for trend | |
|---|---|---|---|---|---|---|---|---|---|
N | 3925 | 339 | 562 | 589 | 594 | 559 | 620 | 662 | |
Male, n (%) | 2682 (70%) | 235 (70%) | 386 (68%) | 395 (67%) | 401 (67%) | 394 (70%) | 442 (71%) | 429 (65%) | 0.63 |
Age, mean ± SD | 62 ± 15 | 62 ± 14 | 62 ± 15 | 62 ± 15 | 62 ± 16 | 61 ± 15 | 63 ± 15 | 62 ± 16 | 0.17 |
Home location, n (%) | 2365 (58%) | 206 (60%) | 341 (60%) | 338 (57%) | 342 (57%) | 338 (60%) | 392 (63%) | 408 (61%) | 0.17 |
Witnessed, n (%) | 3504 (90%) | 320 (94%) | 502 (89%) | 516 (88%) | 534 (90%) | 489 (87%) | 543 (88%) | 600 (90%) | 0.44 |
Bystander CPR, n (%) | 2525 (66%) | 186 (55%) | 310 (55%) | 359 (60%) | 384 (65%) | 365 (65%) | 437 (70%) | 484 (73%) | < 0.001 |
Initial shockable rhythm, n (%) | 2215 (50%) | 130 (38%) | 256 (45%) | 273 (46%) | 298 (50%) | 251 (45%) | 289 (46%) | 287 (43%) | 0.26 |
No flow > 3 min*, n (%) | 1784 (40%) | 179 (53%) | 231 (41%) | 236 (40%) | 248 (42%) | 232 (41%) | 234 (38%) | 253 (38%) | < 0.001 |
Low flow > 20 min*, n (%) | 1613 (39%) | 121 (36%) | 203 (36%) | 207 (35%) | 185 (31%) | 198 (35%) | 219 (35%) | 264 (40%) | 0.039 |
Use of epinephrine, n (%) | 2646 (70%) | 245 (72%) | 373 (66%) | 401 (68%) | 401 (67%) | 393 (70%) | 396 (64%) | 437 (66%) | 0.10 |
First arterial pH, mean ± SD | 7.2 ± 0.2 | 7.2 ± 0.2 | 7.2 ± 0.2 | 7.2 ± 0.2 | 7.2 ± 0.2 | 7.2 ± 0.2 | 7.2 ± 0.2 | 7.2 ± 0.2 | 0.49 |
Post-resuscitation shock, n (%) | 2149 (56%) | 253 (74%) | 388 (69%) | 338 (57%) | 270 (45%) | 305 (54%) | 318 (51%) | 277 (42%) | < 0.001 |
Early invasive coronary strategy, n (%) | 2349 (60%) | 202 (60%) | 336 (60%) | 354 (60%) | 367 (62%) | 335 (60%) | 388 (63%) | 367 (55%) | 0.13 |
Targeted temperature management, n (%) | 1847 (47%) | 189 (55%) | 321 (57%) | 311 (53%) | 275 (46%) | 230 (41%) | 278 (45%) | 243 (37%) | < 0.001 |
Survival at ICU discharge, n (%) | 1106 (26%) | 70 (20%) | 153 (27%) | 181 (30%) | 188 (32%) | 161 (29%) | 176 (28%) | 177 (26%) | 0.03 |
Good neurological prognosis at ICU discharge, n (%) | 921 (23%) | 63 (19%) | 141 (26%) | 160 (28%) | 151 (27%) | 135 (26%) | 147 (26%) | 124 (23%) | 0.76 |