Using an Extended Theory of Planned Behavior to Predict a Change in the Type of Blood Product Donated

Kathleen L. Bagot · Barbara Masser · Katherine Marie White

30 citations0/0 files storedAnnals of Behavioral Medicine

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Blood donation and transfusion practices Organ Donation and Transplantation Behavioral Health and Interventions

Abstract

BACKGROUND: Demand for essential plasma-derived products is increasing. PURPOSE: This prospective study aims to identify predictors of voluntary non-remunerated whole blood (WB) donors becoming plasmapheresis donors. METHODS: Surveys were sent to WB donors who had recently (recent n = 1,957) and not recently donated (distant n = 1,012). Theory of Planned Behavior (TPB) constructs (attitude, subjective norm, self-efficacy) were extended with moral norm, anticipatory regret, and donor identity. Intentions and objective plasmapheresis donation for 527 recent and 166 distant participants were assessed. RESULTS: Multi-group analysis revealed that the model was a good fit. Moral norm and self-efficacy were positively associated while role identity (suppressed by moral norm) was negatively associated with plasmapheresis intentions. CONCLUSIONS: The extended TPB was useful in identifying factors that facilitate conversion from WB to plasmapheresis donation. A superordinate donor identity may be synonymous with WB donation and, for donors with a strong moral norm for plasmapheresis, may inhibit conversion.

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References

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