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

  • Original Article
  • Published:
Annals of Behavioral Medicine

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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Acknowledgments

This research was supported under Australian Research Council’s Linkage Projects funding scheme (project number LP100100408). We acknowledge the Australian governments which fully fund the Australian Red Cross Blood Service for the provision of blood products and services to the Australian community. The authors would like to acknowledge the assistance of Dr. Timothy C. Bednall of Swinburne University and the support from the Blood Service, particularly the Research and Development data analyst and current and former Donor and Community Research Team members. The authors are grateful to the Blood Service Donor Center and National Contact Center staff who participated and, most importantly, to the donors who completed the surveys.

Authors’ Statement of Conflict of Interest and Adherence to Ethical Standards

Masser and White received research funding from, and Bagot held an honorary position at, the Australian Red Cross Blood Service at the time that this study was conducted. All procedures, including the informed consent process, were conducted in accordance with the ethical standards of the responsible committees on human experimentation (i.e., The University of Queensland and the Australian Red Cross Blood Service Human Research Ethics Committees) and with the Helsinki Declaration of 1975, as revised in 2000.

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Authors and Affiliations

  1. Public Health, The Florey Institute of Neurosciences and Mental Health, 245 Burgundy Street, Heidelberg, VIC, 3084, Australia

    Kathleen L. Bagot Ph.D.

  2. School of Psychology, The University of Queensland, McElwain Building, St Lucia, QLD, 4072, Australia

    Barbara M. Masser Ph.D.

  3. School of Psychology and Counselling, Queensland University of Technology, Victoria Park Road, Kelvin Grove, Brisbane, Queensland, 4059, Australia

    Katherine M. White Ph.D.

Authors
  1. Kathleen L. Bagot Ph.D.
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  2. Barbara M. Masser Ph.D.
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Correspondence to Kathleen L. Bagot Ph.D..

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Bagot, K.L., Masser, B.M. & White, K.M. Using an Extended Theory of Planned Behavior to Predict a Change in the Type of Blood Product Donated. ann. behav. med. 49, 510–521 (2015). https://doi.org/10.1007/s12160-014-9677-9

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  • DOI: https://doi.org/10.1007/s12160-014-9677-9

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