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. 2015 Sep;52(3):247-251.
doi: 10.5152/npa.2015.8714. Epub 2015 Jul 7.

Correlation of Fatigue with Depression, Disability Level and Quality of Life in Patients with Multiple Sclerosis

Selma Kaya Aygünoğlu  1 , Arif Çelebi  2 , Nilgün Vardar  3 , Esra Gürsoy  2
Affiliations

Correlation of Fatigue with Depression, Disability Level and Quality of Life in Patients with Multiple Sclerosis

Selma Kaya Aygünoğlu et al. Noro Psikiyatr Ars. 2015 Sep.

Abstract

Introduction: Fatigue is a subjective and non-specific symptom; therefore, evaluation of fatigue is quite difficult. Fatigue has been reported in 75%-87% of patients with multiple sclerosis (MS) and two-thirds of these patients indicated fatigue as one of the worst three common symptoms that they experienced. This study was conducted to measure the intensity, frequency and the characteristics of fatigue in patients with MS. Moreover, the effect of fatigue on the quality of life and its association with depression and disability were evaluated.

Methods: One hundred and twenty patients with multiple sclerosis (84 women and 36 men) were included in our study. The patients' sociodemographic characteristics and their experiences on symptoms of fatigue were questioned. Presence and degree of fatigue were assessed using the fatigue severity scale (FSS). Disability status was detected with expanded disability status scale (EDSS). The Multiple Sclerosis Quality of Life (MSQoL-54) survey was conducted to evaluate the quality of life of patients and Beck Depression Inventory (BDI) was used to determine the current depression status. Patients were grouped into fatigue and non-fatigue groups based on FSS. Both groups were compared according to their age, sex, MS clinical types, course of the disease and scores of EDSS, BDI and MSQoL-54.

Results: Seventy percent of patients reported fatigue and 38% of these patients defined fatigue as their most disabling symptom. There was no correlation of fatigue with age, sex and disease duration. The correlation of fatigue and educational level was negative and weak (p<.05, r=-.214) and the correlation between fatigue and MS clinical types were significant but weak (p<.01, r=.228). Patients with fatigue had higher EDSS and BDI scores. In addition, FSS scores were found to be statistically meaningful and positively correlated with both EDSS and BDI scores (r=.404, r=.476, p<.01). Furthermore, our findings revealed that the quality of life in patients with MS and fatigue was poor (r=-.58 p<.01). Similarly, a negative connection was found between MSQoL-54 sub-scales and fatigue.

Conclusion: This study proved that fatigue has a positive correlation with depression and disability and a negative significant relation with the quality of life of patients with MS.

Keywords: Multiple sclerosis; depression; fatigue; quality of life.

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Conflict of interest statement

Conflict of Interest: No conflict of interest was declared by the authors.

Figures

Figure 1
Figure 1
The relationship between fatigue and MSQoL-54 sub-scales
See this image and copyright information in PMC

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