2.1. Study design
A two-arm randomized controlled trial (RCT) was conducted to assess the effectiveness of two CPR training methods among nurses in two out of seven selected hospitals in north-western Nigeria namely, Kano, and Sokoto states. A detailed explanation of the protocol is listed in “Effectiveness of cardiopulmonary resuscitation (CPR) using video self-instruction training on the level of knowledge and skills retention among hospitals nurses in north-western Nigeria-Protocol paper”, The study was implemented among 150 nurses between July 2021 to January 2022.