Sustainability First: Evaluating a Digital Training of Trainers Approach for Lay First Responders in a Post-COVID-19 World

Introduction:Road traffic injuries (RTIs) are the largest individual contributor to the global burden of injury and were among the five leading causes of global disability-adjusted life years (DALYs) in 2016. In regions with limited emergency medical services, training lay first responders (LFRs) has been shown to increase availability of prehospital care for RTIs, but sustainable mechanisms to scale these programs remain unstudied.Method:Using a training of trainers (TOT) model, a six-hour LFR training program was launched in Lagos, Nigeria. The course was taught in a hybrid fashion with primary didactics over Zoom and practical in-person breakout sessions. Thirty TOTs proceeded to train 350 transportation providers as LFRs over one month. A previously validated, 23 question, pre-/post- assessment was administered digitally to assess knowledge acquisition. Participants responded to five-point Likert survey assessing instruction quality and post-course confidence.Results:TOTs scored a median of 56.5% (IQR: 43.5%, 71.7%) and 91.3% (IQR: 88.0%, 95.7%) on the pre- and post-assessments, respectively, with bleeding control scores increasing most (+69.4%). Course trainees scored a median of 34.8% (IQR: 26.0%, 43.5%) and 73.9% (IQR: 65.2%, 82.6%) on the pre- and post-assessments, respectively, with airway and breathing increasing most (+48.6%). All score increases were statistically significant with p