To assess the knowledge and effectiveness of Compression-Only Life Support (COLS) training among layperson: A prospective study

Introduction: Cardiac arrest has been recognized as a global public health concern and can occur anywhere, even outside the hospital setting. Low bystander cardiopulmonary resuscitation (CPR) rate is one of the factors responsible for the poor outcome for patients having cardiac arrest outside the hospital. Aim: This study aims to assess the knowledge and effectiveness of Compression-Only Life Support (COLS) training among layperson as per Indian Resuscitation Council (IRC) guidelines. Methodology: A prospective study was conducted on 100 laypersons residing in a residential campus of a tertiary care hospital in North India, from June to November 2019. Participants were enrolled using convenient sampling. Data was collected using a structured validated questionnaire, followed by COLS training by interactive lecture, demonstration and hands-on practise by participants. In the post-test, knowledge and COLS skill was assessed. Data were analysed using frequency, percentage, and paired t-test. A p-value <0.05 was accepted as significant. Results: Significant difference was observed in the mean knowledge score of before (2.7±1.51) and after the training (13.88±1.09) (P=0.001). After the training, 96 participants had good COLS knowledge and a median (IQR) score of COLS skill was 40 (0). Eighty participants attained 100% competence in performing COLS in the first attempt and all after three attempts. COLS training is effective in increasing knowledge and developing competence regarding CPR among laypersons. It is a simple algorithmic approach and easy to learn for a layperson.