The present study explored the determinants of registration to facilitate the promotion of posthumous organ donation based on the theory of reasoned actions. A total of 211 university students participated in the study. Logistic regression, multiple regressions, and path analysis were conducted. The logistic regression model correctly predicted nearly 80% of registration status, and a good fit model of registration for posthumous organ donation (MRPOD) was proposed. Findings suggested that affective attitude, subjective norm of family, self-rated knowledge, distance from death, and age were predictors of registration. Worries about organ removal and postmortem mutilation anxiety were also mediated through bodily integrity, which had an indirect effect on the registration through affective attitude. Policymakers are suggested to address the negative emotions associated with challenges towards bodily integrity, encourage parents to initiate discussions with children, instill correct knowledge of brain death, and intervene the bystander effect on organ donation.
Keywords: Hong Kong; attitude; bodily integrity; family; knowledge; organ donation; registration; theory of reasoned action.