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Table 5 Association between practical application of CPR and knowledge source among aware participants

From: Knowledge of non-healthcare individuals towards cardiopulmonary resuscitation: a cross-sectional study in Riyadh City, Saudi Arabia

Variables Source of knowledge
Formal CPR course n (%) Campaign n (%) Media n (%) p value
Procedures
 Opening an airway 21 (55.3) 21 (47.7) 32 (9.7) < 0.001
 Give mouth-mouth ventilation 25 (65.8) 24 (54.5) 28 (8.5) < 0.001
 Starting chest compression 36 (94.7) 40 (90.9) 48 (14.5) < 0.001
 Giving mouth to mouth-start chest compression 24 (63.2) 22 (50.0) 19 (5.7) < 0.001
 Those knowing three procedures 19 (50.0) 16 (36.4) 9 (2.7) < 0.001
 I do not know 0 (0.0) 0 (0.0) 257 (77.6) < 0.001
Which one of the following choices is the correct location for chest compressions in CPR?
 Upper part of the chest 7 (18.4) 6 (13.6) 37 (11.2) < 0.001
 Middle part of the chest 19 (50.0) 28 (63.6) 93 (28.1)
 Lower part of the chest 12 (31.6) 10 (22.7) 31 (9.4)
 I do not know 0 (0.0) 0 (0.0) 170 (51.4)
What is the ratio of chest compressions to mouth-to-mouth ventilation in CPR?
 5:1 11 (29) 18 (40.9) 9 (2.7) < 0.001
 15:2 16 (42) 15 (34.1) 6 (1.8)
 30:2 11 (29) 11 (25) 7 (2.1)
 I do not know 0 (0.0%) 0 (0.0%) 309 (93.4)
What is the rate of chest compressions in CPR?
 150 per min 4 (10.5) 3 (6.8) 5 (1.5) < 0.001
 100–120 per min 11 (28.9) 12 (27.3) 12 (3.6)
 50 per min 23 (60.5) 29 (65.9) 17 (5.1)
 I do not know 0 (0.0) 0 (0.0) 297 (89.7)
What is the length of strength that should be given during chest compressions in CPR?
 A depth of 1–2 cm 12 (31.6) 21 (47.7) 9 (2.7) < 0.001
 A depth of 5–6 cm 21 (55.3) 22 (50.0) 24 (7.3)
 A depth of 6–10 cm 5 (13.2) 1 (2.3) 4 (1.2)
 I do not know 0 (0.0) 0 (0.0) 294 (88.8)
  1. CPR cardiopulmonary resuscitation
  2. †Correct answer