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Table 2 BLS characteristics

From: Assessment of changes in cardiopulmonary resuscitation practices and outcomes on 1005 victims of out-of-hospital cardiac arrest during the COVID-19 outbreak: registry-based study

  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
  1. Data are expressed as the number/total number (frequency %) for qualitative variables or mean ± standard deviation for quantitative variables
  2. MMT mobile medical team, BLS basic life support, CC chest compressions, MtM mouth to mouth, CPR cardiopulmonary resuscitation, AED automated external defibrillator
  3. a Time between collapse and CPR initiation