Association of illness perception and alexithymia with fatigue in hemodialysis recipients: a single-center, cross-sectional study

Author:

Tanemoto Yoko,Yamada Ui,Nakayama Masaaki,Takeuchi Takeaki,Tanemoto Fumiaki,Ito Yugo,Kobayashi Daiki,Ohta Daisuke,Hashizume Masahiro

Abstract

AbstractFatigue in hemodialysis recipients interferes with daily activities and renal rehabilitation, and its underlying causes and treatment remain unclear. Psychological factors, like illness perceptions and alexithymia, cause fatigue in other diseases; however, their contribution to hemodialysis-related fatigue is unknown. This cross-sectional study included 53 hemodialysis recipients. To assess participants’ fatigue, we used a self-administered patient-reported outcome questionnaire whose items have shown correlation with those of established scales, such as the Profile of Mood States and Visual Analogue Scales. The associations among the scores of the revised Illness Perceptions Questionnaire (IPQ-R), Toronto Alexithymia Scale (TAS-20), and Hospital Anxiety and Depression Scale and fatigue were analyzed using bivariable and multivariable analyses. Patients with fatigue had significantly higher median scores for the IPQ-R subscales “Identity” and “Negative emotional representation about illness” than those without fatigue, suggesting the association of specific illness perception with fatigue. Median scores for the TAS-20 subscale “Difficulty identifying feelings” were also significantly higher among fatigued patients, suggesting the association of alexithymia with fatigue. Depression was not associated with fatigue. Multivariable logistic regression revealed the association of a high “Identity” score with the risk of fatigue (adjusted odds ratio, 1.32; 95% confidence interval, 1.00–1.73; P = 0.04), while there were no significant association between a high “Difficulty identifying feelings” score and the risk of fatigue (adjusted odds ratio, 1.09; 95% confidence interval, 0.95–1.24). Specific illness perception and alexithymia were slightly associated with hemodialysis-related fatigue. Cognitive-behavioral therapy for these conditions could reduce fatigue and promote renal rehabilitation.

Publisher

Springer Science and Business Media LLC

Subject

Multidisciplinary

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