Table 2.
Effective factors of return of spontaneous circulation (ROSC) in out-of-hospital cardiac arrest cases based on univariate and multivariate regression analyses
| Variable (reference) |
Univariate
|
Multivarate
|
||
|---|---|---|---|---|
| OR (95% CI) | P value | AOR (95% CI) | P value | |
| Patient age | 0.96 (0.95-0.97) | < 0.001 | 0.97 (0.95-0.98) | < 0.001 |
| Gender (male) | 1.07 (0.83-1.38) | 0.580 | - | - |
| Arrest time (night) | 0.88 (0.67-1.16) | 0.394 | - | - |
| Arrest location (home) | 1.59 (1.23-2.06) | < 0.001 | 1.47 (1.94 -1.11) | 0.007 |
| CPR duration | 0.95 (0.94-0.96) | < 0.001 | 0.95 (0.93-0.96) | < 0.001 |
| History of cardiac disease (No) | 0.49 (0.38-0.64) | < 0.001 | 0.54 (0.40 – 0.72) | < 0.001 |
| Witnessed (No) | 1.46 (1.12-1.90) | 0.005 | - | - |
| Bystander CPR (No) | 3.20 (2.14-4.78) | < 0.001 | 3.26 (2.08 – 5.12) | < 0.001 |
| Response time | 0.79 (0.75-0.83) | < 0.001 | 0.80 (0.76-0.84) | < 0.001 |
| ETI (No) | 1.60 (1.21-2.12) | 0.001 | 1.63 (1.21 – 2.20) | 0.001 |
| Shockable rhythm (No) | 2.37 (1.83-3.08) | < 0.001 | 1.86 (1.41 -2.46) | 0.001 |
CI: confidence interval; CPR: cardiopulmonary resuscitation; ETI: endotracheal intubation; OR: Odds ratio; AOR: Adjusted Odds ratio (adjusted for patients’ age, gender, arrest location, history of cardiac disease, time of arrest, CPR duration, response time, witnessed, bystander CPR and endotracheal intubation and shockable rhythm).