Summary: For individuals receiving bystander cardiopulmonary resuscitation (CPR) in the community, use of chest compressions alone compared to chest compressions + rescue breathing may be associated with a higher likelihood of survival at 1, 2, and 5 years after arrest (NNT approximately 2 at each outcome interval).

https://www.ncbi.nlm.nih.gov/m/pubmed/23230313/

Strength of Recommendation = B