Odds ratio (95 % confidence interval) | P value | |
---|---|---|
Age per year | 0.98 (0.97–0.98) | <0.0001 |
Male | 0.83 (0.69–1.00) | 0.52 |
Witnessed arrest | 3.56 (2.83–4.46) | <0.0001 |
Bystander CPR | 1.62 (1.33–1.98) | <0.0001 |
Call-response interval per minute | 0.94 (0.92–0.96) | <0.0001 |
Initial shockable rhythm | 5.33 (4.23–6.71) | <0.0001 |
Time of 911 call receipt | ||
Night (2301–0700 h) | Reference | |
Daytime (0701–1500 h) | 1.66 (1.34–2.07) | <0.0001 |
Evening (1501–2300 h) | 1.12 (0.88–1.43) | 0.36 |