Table 3. Univariate logistic regression of the total number of patients undergoing cardiopulmo-nary resuscitation in cardiac arrest not certified by the EMS team.
| Survival (yes - ROSC to hospital yes, NO-ROSC to hospital no) | |||||
|---|---|---|---|---|---|
| ROSC n (%) |
NO-ROSC n (%) |
Odds ratio | 95% CI | p-value | |
| Age (years): ≤65 ≥65 |
43 (16) 55 (15) |
217 (84) 322 (85) |
1.160 | 0.751-1.791 | 0.503 |
| Hands-on-time (min) 0-10 ≥11 |
56 (18) 42 (13) |
252 (82) 285 (87) |
1.508 | 0.977-2.329 | 0.064 |
| Shockable rhythm Non-shockable rhythm |
47 (45) 42 (9) |
85 (55) 443 (91) |
5.832 | 3.621-9.392 | <0.001 |
| Daily shift Night shift** |
70 (19) 28 (16) |
366 (81) 173 (84) |
1.182 | 0.736-1.898 | 0.490 |
| Etiology: cardiology non cardiology |
72 (17) v 26 (23) |
427 (83) 112 (77) |
0.726 | 0.443-1.191 | 0.205 |
| Bystander witnessed: yes no |
95 (22) 3 (3) |
428 (78) 111 (97) |
8.213 | 2.554-26.411 | <0.001 |
| Bystander CPR: yes no |
41 (16) 57 (20) |
250 (84) 289 (80) |
0.832 | 0.538-1.285 | 0.406 |
*hands-on-time = time from receiving the call to the arrival of the Emergency Medicine Service (EMS) team to the patient; **day shift 7-19, night shift 19-07; ROSC = return of spontaneous circulation; CPR = cardiopulmonary resuscitation