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Medication Adherence and Illness Perception in Patients with Rheumatoid Arthritis: The Mediating Effect of
Lei Huang1, Yang Zhou2, Yan Liu1
1Department of Rheumatology and Immunology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China.
Objectives:
To explore the mediating effect of self-efficacy (SE) on the relationship between medication adherence (MA) and illness perception (IP) in patients with rheumatoid arthritis (RA).
Methods:
A convenient sampling method was used to select 238 RA patients undergoing treatment at two hospitals in Guangzhou, China. A cross-sectional survey was conducted, utilizing a general information questionnaire, a chronic disease SE scale, an IP scale, and the Medication Adherence Rating Scale (MARS-A). R software (Version 4.2.2) was used to construct a mediation model to examine the impact of SE and IP on MA among RA patients. The bootstrap method was employed to validate the mediating role of SE.
Results:
The average scores for IP, SE, and MA were 120.50 ± 12.32, 29.36 ± 8.49, and 21.22 ± 2.96, respectively. Pearson correlation analysis revealed that SE was positively correlated with IP (r = 0.23, p < 0.01) and MA (r = 0.195, p < 0.001). IP was also positively correlated with MA (r = 0.532, p < 0.05). The mediating effect of SE in the relationship between IP and MA was confirmed.
Conclusion:
SE partially mediates the relationship between IP and MA in patients with RA.
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