Shockable (n = 304) | Nonshockable (n = 433) | P value | |
---|---|---|---|
Age (years) | 59.5 ± 11.9 | 60.1 ± 12.9 | 0.55 |
Arrival (min [min-max]) | 8.6 ± 4.5 (1–22) | 9.9 ± 4.3 (2–29) | 0.03 |
Initial PetCO2 (kPa [mmHg]) | 2.2 ± 1.3 (16.6 ± 9.8) | 3.4 ± 2.4 (25.6 ± 18.1) | <0.001 |
1 minute PetCO2 (kPa [mmHg]) | 3.3 ± 1.4 (24.8 ± 10.5) | 2.8 ± 1.5 (21.1 ± 11.3) | <0.001 |
Average PetCO2 (0 to 10 minutes; kPa [mmHg]) | 2.3 ± 1.1 (17.3 ± 8.3) | 1.8 ± 1.2 (13.5 ± 0.9) | <0.001 |
10 minute PetCO2 (kPa [mmHg]) | 2.7 ± 1.3 (20.3 ± 10) | 2.1 ± 1.3 (15.8 ± 10) | <0.001 |
11–15 minutes PetCO2 (kPa [mmHg]) | 2.5 ± 1.2 (18.8 ± 9.1) | 1.9 ± 1.2 (14.3 ± 9.7) | <0.001 |
15 minutes PetCO2 (kPa [mmHg]) | 2.9 ± 1.5 (21.8 ± 11.3) | 2.2 ± 1.4 (16.5 ± 10.5) | <0.001 |
20 minutes PetCO2 (kPa [mmHg]) | 3.3 ± 1.8 (24.8 ± 13.5) | 2.4 ± 1.9 (18.1 ± 14.3) | <0.001 |
Max PetCO2 (kPa [mmHg]) | 4.2 ± 2.1 (31.6 ± 15.8) | 3.3 ± 2.1 (24.8 ± 15.8) | <0.001 |
Final PetCO2 (kPa [mmHg]) | 2.9 ± 1.5 (21.8 ± 11.3) | 2.1 ± 1.5 (15.8 ± 11.3) | <0.001 |