Table 2 BLS characteristics
All patients N = 2625 | COVID-19 period N = 1005 | Non-COVID-19 period N = 1620 | p-value | |
|---|---|---|---|---|
By bystander | ||||
Bystander present (at collapse), No./total (%) | 1683/2625 (64.1) | 648/1005 (64.5) | 1035/1620 (63.9) | 0.770 |
Immediate BLS, No./total No. (%) | 928/2625 (35.4) | 343/1005 (34.1) | 585/1620 (36.1) | 0.314 |
No Flow Duration, mean ± SD, mina | 13 ± 15 | 15 ± 18 | 12 ± 13 | < 0.001 |
Bystander BLS, No./total (%) | 1389/2625 (52.9) | 500/1005 (49.8) | 889/1620 (54.9) | 0.011 |
CC only (CO-CPR) | 988/1389 (71.1) | 362/500 (72.4) | 626/889 (70.4) | 0.075 |
CC + MtM (S-CPR) | 396/1389 (28.5) | 134/500 (26.8) | 262/889 (29.5) | |
MtM only | 5/1389 (0.4) | 4/500 (0.8) | 1/889 (0.1) | |
AED use, No./total (%) | 194/2625 (7.4) | 75/1005 (7.5) | 119/1620 (7.5) | 0.939 |
AED shock, No./total (%) | 57/2625 (2.2) | 21/1005 (2.1) | 36/1620 (2.2) | 0.897 |
By first aid provider | ||||
Time between T0 and first aid providers arrival, mean ± SD, min | 12 ± 10 | 12 ± 11 | 11 ± 9 | 0.010 |
First aid provider BLS, No./total (%) | 2277/2618 (87.0) | 845/1003 (84.3) | 0.001 | 0.001 |
- CC | 2271/2278 (99.6) | 842/846 (99.5) | 1429/1432 (99.7) | 0.479 |
- Ventilation | 2131/2277 (93.6) | 795/845 (94.1) | 1336/1432 (93.3) | 0.480 |
AED use, No./total (%) | 1863/2625 (71.0) | 662/1005 (66.0) | 1200/1620 (74.1) | < 0.001 |
AED shock, No./total (%) | 454/2625 (17.3) | 154/1005 (15.3) | 300/1620 (18.5) | 0.038 |