open access

Vol 46, No 4 (2012)
ARTYKUŁ ORYGINALNY
Submitted: 2011-09-02
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Fatigue and its association with sleep disorders, depressive symptoms and anxiety in patients with multiple sclerosis

Beata Łabuz-Roszak, Katarzyna Kubicka-Bączyk, Krystyna Pierzchała, Agnieszka Machowska-Majchrzak, Michał Skrzypek
DOI: 10.5114/ninp.2012.30261
·
Neurol Neurochir Pol 2012;46(4):309-317.

open access

Vol 46, No 4 (2012)
ARTYKUŁ ORYGINALNY
Submitted: 2011-09-02

Abstract

Background and purpose

The aetiopathogenesis of fatigue in multiple sclerosis (MS) is not clear. It could be associated with structural changes of the central nervous system, but also with mood and sleep disorders. The purpose of the study was to evaluate frequency of fatigue and its association with sleep and mood disorders in MS patients.

Material and methods

The examined group consisted of 122 MS patients (mean age 37.7 ± 10.8 years). The following questionnaires were used: Fatigue Severity Scale (FSS), Epworth Sleepiness Scale (ESS), Athens Insomnia Scale (AIS), Montgomery-Asberg Depression Rating Scale (MADRS), and Hospital Anxiety and Depression Scale (HADS).

Results

Fatigue was present in 75 MS patients (61.5%). Excessive daytime sleepiness was observed in 25 (20.5%), insomnia in 73 patients (59.8%). According to MADRS, depressive symptoms were present in 33 (27%), according to HADS in 15 people (12.3%). Anxiety was present in 32 patients (26.2%). We observed an association between fatigue (FSS) and sleep disorders (ESS, AIS) and also between fatigue and either depression (MADRS, HADS-D) or anxiety (HADS-A). The FSS score was not associated with age, sex, disease course and duration, Expanded Disability Status Stage (EDSS), treatment or level of education in MS patients. In inactive professionally people we noted significantly higher FSS scores (44.8 ± 13.8) in comparison with active individuals (37.2 ± 14.9; p = 0.0053).

Conclusions

Fatigue is a very common symptom in MS, sometimes associated with sleep disorders, depressive symptoms or anxiety. The treatable causes of fatigue in MS such as sleep and mood disturbances should be identified and treated.

Abstract

Background and purpose

The aetiopathogenesis of fatigue in multiple sclerosis (MS) is not clear. It could be associated with structural changes of the central nervous system, but also with mood and sleep disorders. The purpose of the study was to evaluate frequency of fatigue and its association with sleep and mood disorders in MS patients.

Material and methods

The examined group consisted of 122 MS patients (mean age 37.7 ± 10.8 years). The following questionnaires were used: Fatigue Severity Scale (FSS), Epworth Sleepiness Scale (ESS), Athens Insomnia Scale (AIS), Montgomery-Asberg Depression Rating Scale (MADRS), and Hospital Anxiety and Depression Scale (HADS).

Results

Fatigue was present in 75 MS patients (61.5%). Excessive daytime sleepiness was observed in 25 (20.5%), insomnia in 73 patients (59.8%). According to MADRS, depressive symptoms were present in 33 (27%), according to HADS in 15 people (12.3%). Anxiety was present in 32 patients (26.2%). We observed an association between fatigue (FSS) and sleep disorders (ESS, AIS) and also between fatigue and either depression (MADRS, HADS-D) or anxiety (HADS-A). The FSS score was not associated with age, sex, disease course and duration, Expanded Disability Status Stage (EDSS), treatment or level of education in MS patients. In inactive professionally people we noted significantly higher FSS scores (44.8 ± 13.8) in comparison with active individuals (37.2 ± 14.9; p = 0.0053).

Conclusions

Fatigue is a very common symptom in MS, sometimes associated with sleep disorders, depressive symptoms or anxiety. The treatable causes of fatigue in MS such as sleep and mood disturbances should be identified and treated.

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Keywords

multiple sclerosis, fatigue, depression, anxiety, sleep disorders

About this article
Title

Fatigue and its association with sleep disorders, depressive symptoms and anxiety in patients with multiple sclerosis

Journal

Neurologia i Neurochirurgia Polska

Issue

Vol 46, No 4 (2012)

Pages

309-317

DOI

10.5114/ninp.2012.30261

Bibliographic record

Neurol Neurochir Pol 2012;46(4):309-317.

Keywords

multiple sclerosis
fatigue
depression
anxiety
sleep disorders

Authors

Beata Łabuz-Roszak
Katarzyna Kubicka-Bączyk
Krystyna Pierzchała
Agnieszka Machowska-Majchrzak
Michał Skrzypek

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