Table 2.
Binary logistic regression comparing characteristics and management of OHCA between pandemic and pre-pandemic periods.
| OHCA Characteristics (%) | Event vs. Reference Level | Pandemic vs. Pre-Pandemic | |
|---|---|---|---|
| Unadjusted Odds Ratio (95% CI) | p-Value | ||
| Age | ≥65 vs. <65 | 1.15 (1.00, 1.32) | 0.052 |
| Gender | Female vs. Male | 1.05 (0.91, 1.20) | 0.509 |
| Race | Chinese vs. non-Chinese | 1.12 (0.97, 1.29) | 0.134 |
| Location Type | Home residence vs. Public areas | 1.28 (1.10, 1.49) | 0.002 |
| Witnessed arrest | Yes vs. No | 1.64 (1.44, 1.88) | <0.001 |
| First arrest rhythm | Shockable vs. Non-shockable | 0.92 (0.77, 1.11) | 0.384 |
| Bystander CPR performed | Yes vs. No | 0.70 (0.61, 0.80) | <0.001 |
| Bystander AED applied | Yes vs. No | 1.13 (0.90, 1.43) | 0.282 |
| Call received to dispatch | ≥2 vs. <2 | 0.66 (0.58, 0.75) | <0.001 |
| Dispatch to scene arrival | ≥6 vs. <6 | 1.17 (1.02, 1.33) | 0.022 |
| Scene arrival to first patient contact | ≥2 vs. <2 | 1.41 (1.20, 1.66) | <0.001 |
| Total response time | ≥10 vs. <10 | 1.71 (1.46, 2.00) | <0.001 |
| Pre-hospital ROSC | Yes vs. No | 0.69 (0.56, 0.86) | <0.001 |
Pandemic period: Jan to May 2020; Pre-pandemic period: Jan to May 2018, Jan to May 2019. Abbreviations: OHCA, out-of-hospital cardiac arrest; CPR, cardiopulmonary resuscitation; AED, automated external defibrillator; EMS, emergency medical services; ROSC, return of spontaneous circulation.