The impact of attending rheumatologist's Big Five personality traits on systemic lupus erythematosus patients' trust in their rheumatologist: the TRUMP2-SLE project

Abstract

Objectives Differences in communication styles according to physicians' personality traits have been identified, and such physician-related factors can be important in building patient-physician trust. This study examined the impact of rheumatologists' Big Five personality traits on patients' trust in their attending rheumatologists. Methods This cross-sectional study included Japanese patients with systemic lupus erythematosus (SLE) at five academic medical centres between June 2020 and August 2021. The exposure was the Big Five personality traits of their attending rheumatologists using the Japanese version of the Ten-Item Personality Inventory Scale (2-14 points each). The outcome was the patient's trust in attending rheumatologist using the Japanese version of the 5-item Wake Forest Physician Trust Scale (0-100 points). A general linear model was fitted to adjust for rheumatologists' and patients' characteristics, while correcting for the clustering effect of the same attending rheumatologists. Results The study included 505 patients with a mean age of 46.8 years, and 88.1% were women. Forty-three attending rheumatologists (mean age, 39.6 years, 23.3% women) were identified. Higher extraversion and agreeableness were associated with higher trust in attending rheumatologists (per 1-point increase, 1.85 points [95% CI 0.52 to 3.19] and 2.24 points [95% CI 0.86 to 3.61], respectively), and higher conscientiousness was associated with lower trust (per 1-point increase, -1.07 points [95% CI -1.64 to -0.49]). Conclusions While higher extraversion and agreeableness of attending rheumatologists led to higher patient trust in their rheumatologist, overly high conscientiousness may lead to lower trust resulting from the physician's demand of dutifulness from patients with SLE.

Competing Interest Statement

NK is a member of the Committee on Clinical Research, Japan College of Rheumatology and has received grants from the Japan Society for the Promotion of Science, consulting fees from GlaxoSmithKline K.K., and payments for speaking and educational events from Chugai Pharmaceutical Co. Ltd., Sanofi K.K., Mitsubishi Tanabe Pharma Corporation, Japan College of Rheumatology. KS has received a research grant from Pfizer Inc. and payment for speaking and educational events from GlaxoSmithKline K.K. The authors declare no conflict of interest.

Funding Statement

This study was supported by the JSPS KAKENHI (grant number: JP 19KT0021). The funder had no role in the study design, analyses, interpretation of the data, writing of the manuscript, or the decision to submit it for publication.

Author Declarations

I confirm all relevant ethical guidelines have been followed, and any necessary IRB and/or ethics committee approvals have been obtained.

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The details of the IRB/oversight body that provided approval or exemption for the research described are given below:

This study was performed in accordance with the Declaration of Helsinki and Good Clinical Practice guidelines, and was approved by the Ethics Review Board of Showa University (22-298-B)

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Data Availability

The datasets generated and/or analysed during the study are available from the corresponding author upon reasonable request.

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