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“My patients are better than yours”: optimistic bias about patients’ medication adherence by European health care professionals

Authors Clyne W, McLachlan S, Mshelia C, Jones P, De Geest S, Ruppar T, Siebens K, Dobbels F, Kardas P

Received 19 March 2016

Accepted for publication 17 May 2016

Published 26 September 2016 Volume 2016:10 Pages 1937—1944


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Editor who approved publication: Dr Johnny Chen

Wendy Clyne,1 Sarah McLachlan,2 Comfort Mshelia,3 Peter Jones,4 Sabina De Geest,5,6 Todd Ruppar,7 Kaat Siebens,6 Fabienne Dobbels,6 Przemyslaw Kardas8

1Faculty of Health and Life Sciences, Coventry University, Coventry, 2Department of Physiotherapy, King’s College London, London, 3Leeds Institute of Health Sciences, University of Leeds, Leeds, 4Institute of Science and Technology in Medicines, Keele University, Keele, UK; 5Institute of Nursing Science, University of Basel, Basel, Switzerland; 6Academic Center for Nursing and Midwifery, KU Leuven, Leuven, Belgium; 7Sinclair School of Nursing, University of Missouri, Columbia, MO, USA; 8Department of Family Medicine, Medical University of Lodz, Lodz, Poland

Objectives: The objectives of this study were to determine the perceptions of European physicians, nurses, and pharmacists about the extent of nonadherence by patients in their country relative to their perception of nonadherence by their own patients, and to investigate the occurrence of optimistic bias about medication adherence. The study explored a key cognitive bias for prevalence and likelihood estimates in the context of health care professionals’ beliefs about patients’ use of medicines.
Methods: A cross-sectional online survey of 3,196 physicians (855), nurses (1,294), and pharmacists (1,047) in ten European countries (Austria, Belgium, England, France, Germany, Hungary, the Netherlands, Poland, Portugal, and Switzerland) was used.
Results: Participants differed in their perceptions of the prevalence of medication adherence initiation, implementation, and persistence present in their own patients with a chronic illness in comparison to patients with a chronic illness in general. Health care professionals demonstrated optimistic bias for initiation and persistence with medicine taking, perceiving their own patients to be more likely to initiate and persist with treatment than other patients, but reported significantly lower prevalence of medication adherence levels for their own patients than for patients in general. This finding is discussed in terms of motivational and cognitive factors that may foster optimistic bias by health care professionals about their patients, including heightened knowledge of, and positive beliefs about, their own professional competence and service delivery relative to care and treatment provided elsewhere.
Conclusion: Health care professionals in Europe demonstrated significant differences in their perceptions of medication adherence prevalence by their own patients in comparison to patients in general. Some evidence of optimistic bias by health care professionals about their patients’ behavior is observed. Further social cognitive theory-based research of health care professional beliefs about medication adherence is warranted to enable theory-based practitioner-focused interventions to be tested and implemented.

Keywords: medication adherence, health care professional beliefs, optimistic bias, unrealistic optimism

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