General population’s intentions to perform public CPR: a structural equation modeling analysis based on the theory of planned behavior

Background: Bystander cardiopulmonary resuscitation (CPR) plays a significant role in boosting survival rates among victims of out-of-hospital cardiac arrests. This study aimed to identify the key factors influencing the public's intentions to perform CPR based on the Theory of Planned Behavior (TPB). Methods: A cross-sectional survey was conducted in Shanghai, China, from May 1 to June 20, 2023. Structural equation modeling (SEM) was employed to analyze the relationships between the components of the Theory of Planned Behavior (TPB)-attitude, subjective norms (SN), and perceived behavioral control (PBC)-and CPR intention. Results: = 0.004). Conclusion: Attitude and SN are the primary determinants of the public's intention to perform CPR, with SN indirectly shaping intention via attitude and PBC. These findings provide support for TPB-guided interventions aimed at enhancing bystander readiness to perform CPR.