Modeling Individuals' Prescription Medicine Borrowing Behavior

Abstract

Background: Medicine-sharing behavior can be divided into two groups: borrowing medicine from someone else and lending medicine to someone else without consulting a doctor or a pharmacist. There are many reasons for the behavior that leads individuals to share their prescription medicines. However, there is a lack in the literature to investigate individuals' medicine-sharing behavior and related antecedents and outcomes of this behavior. Objective(s): The main objective of this study is to model individuals' prescription medicine borrowing (PMB) behavior via the structural equation model based on the Theory of Planned Behavior (TPB). Methods: A measurement tool was developed according to TPB. Exploratory factor analysis was conducted to determine subfactors of PBM behavior. In the second step, confirmatory factor analysis (CFA) was conducted to confirm whether there is a relationship between the observed variables and their underlying latent constructs. Finally, a structural equation model was conducted to specify the relationships between latent variables. IBM Statistical Package for Social Sciences (IBM SPSS Software) version 22 and LISREL 8.80 were used for data analysis. Results: Study findings reveal that the participants' attitudes and intentions towards PMB are low, and the rate of exhibiting this behavior is also low. In the proposed prescription medicine borrowing behavior model, the positive effect of attitude towards PMB, perceived behavioral control related PMB, and subjective norm about PMB on intention towards PMB were found statistically significant. Intention towards PMB has been found to have a positive statistically significant effect on PMB behavior. Conclusions: Based on the results of this study, it is possible to say that TPB is an appropriate theory for modeling PMB. Thus, this model will shed light on healthcare providers and policy-makers to avoid individuals from the adverse effects of PMB behavior.