Table 3.
Annual Frequency and Incidence of Outcome Events
| Variable | N | % | Per 100,000 |
|---|---|---|---|
| OHCA | 5,196 | – | 83.60 |
| Residence as OHCA Location | 4,608 | 88.7 | 73.17 |
| All Witnessed OHCA | 2,625 | 49.6 | 42.63 |
| Bystander-Witnessed OHCA | 2,283 | 43.9 | 34.45 |
| EMS-Witnessed OHCA | 342 | 6.6 | 2.65 |
| CPR Attempted in Group of Witnessed All-Cause OHCA Cases | 1,844 | 70.2 | 32.49 |
| Bystander-CPR in Group of CPR Attempted All-Cause OHCA Cases | 316 | 17.1 | 2.42 |
| EMS-CPR in Group of CPR Attempted All-Cause OHCA Cases | 1,315 | 71.3 | 22.24 |
| CPR Attempted in Group of Witnessed Cardiac-Cause OHCA Cases | 1,246 | 55.1 | 8.79 |
| CPR Attempted in Group of Witnessed Non-Cardiac-Cause OHCA Cases | 116 | 17.9 | 1.06 |
| Any ROSC Achieved in Group of CPR Attempted All-Cause OHCA Cases | 414 | 22.5 | 7.01 |
| Any ROSC Achieved in Group of CPR Attempted Cardiac-Cause OHCA Cases | 264 | 21.2 | 4.64 |
| Any ROSC Achieved in Group of CPR Attempted Non-Cardiac-Cause OHCA Cases | 33 | 28.4 | 2.06 |
| Admission ROSC Achieved in Group of CPR Attempted All-Cause OHCA Cases | 330 | 17.9 | 5.56 |
Abbreviations: OHCA, out-of-hospital cardiac arrest; EMS, Emergency Medical Service; CPR, cardiopulmonary resuscitation; ROSC, return of spontaneous circulation.