Table 1 Backgrounds, characteristics and outcomes of OHCAs with reference to relation of bystander to victim
| Â | Relation of bystander to victim | Â | ||
|---|---|---|---|---|
Background, characteristics and outcome | Family (n= 25,119) | Friends, colleagues and passers-by (n= 5,191) | Others (n= 14,938) | Pvalue |
Patient's age, median (25 to 75%) | 77 (66 to 84) | 61 (50 to 73) | 84 (75 to 90) | <0.001 |
Sex - male (%) | 61.6 | 76.8 | 44.7 | <0.001 |
CPR following telephone CPR (%) | 75.1 | 42.7 | 36.1 | <0.001 |
Initial rhythm shockable (%) | 16.3 | 33.4 | 9.8 | <0.001 |
Tune intervals, minutes, median (25 to 75%) | Â | Â | Â | Â |
   Collapse-call | 2 (0 to 5) | 2 (0 to 4) | 2 (0 to 5) | <0.001 |
   Collapse-bystander CPR | 3 (1 to 6) | 1 (0 to 4) | 0 (0 to 2) | <0.001 |
   Call arrival at patient | 8 (6 to 11) | 8 (6 to 11) | 8 (6 to 10) | <0.001 |
Outcomes | Â | Â | Â | Â |
   1-month survival (%) | 8.1 | 17.2 | 9.2 | <0.001 |
   1-month survival with favorable | 4.0 | 11.9 | 4.8 | <0.001 |
   neurological outcomes (%) |  |  |  |  |