The policy in Houston, Texas, is to dual dispatch medically trained firefighters in addition to emergency medical services (EMS) units to out-of-hospital cardiac arrest (OHCA) cases. While believed to improve public health outcomes, no research exists to support the policy that when firefighters respond before a better-equipped EMS unit, they increase the probability of survival. This retrospective study by Dr. Loren Raun et al uses logistic regression to determine