Characteristics of patients with cardiogenic OHCAs in the working population according to the bystander group (time course data available)
| Characteristic | Family | Friends | Work-colleagues | Passers-by |
| Time course, min, median (Q1–Q3) | ||||
| Witness call | 2 (1–4) | 2 (1–4) | 2 (1–4) | 2 (1–4) |
| Call to contact | 8 (7–10) | 8 (6–11) | 8 (6–10) | 7 (6–9) |
| Witness-initiated CPR by bystander | 3 (1–5) | 2 (1–5) | 2 (1–5) | 2 (1–4) |
| Witness-initial defibrillation | 13 (11–17) | 13 (10–17) | 13 (10–16) | 12 (9–15) |
CPR, cardiopulmonary resuscitation; OHCA, out-of-hospital cardiac arrest; Q1–Q3, first to third quartile.