Open Access Research article

Health-related quality of life and emotional distress in patients with dizziness: a cross-sectional approach to disentangle their relationship

Steffi Weidt1*, Annette B Bruehl2, Dominik Straumann3, Stefan CA Hegemann4, Gerhard Krautstrunk1 and Michael Rufer1

Author Affiliations

1 Department of Psychiatry and Psychotherapy, University Hospital Zurich, Culmannstrasse 8, Zurich CH–8091, Switzerland

2 Department for Psychiatry, Psychotherapy and Psychosomatics, University Hospital of Psychiatry Zurich, Zurich, Switzerland

3 Department of Neurology, University Hospital Zurich, Zurich, Switzerland

4 Department of Otolaryngology, Head & Neck Surgery, University Hospital Zurich, Zurich, Switzerland

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BMC Health Services Research 2014, 14:317  doi:10.1186/1472-6963-14-317

Published: 22 July 2014

Abstract

Background

Dizziness is frequently encountered in medical practice, often takes a chronic course and can impair the health related quality of life (HRQoL). However results on the extent of this impairment of HRQoL are mixed. Furthermore, the relationship between dizziness and the HRQoL is only partially understood. The role of clinical symptoms of dizziness and psychosocial factors such as emotional distress on this relationship is for the most part unknown.

Methods

The cross-sectional study evaluated the HRQoL in 203 patients suffering from dizziness, using the Medical Outcomes Studies 36-Item Short-Form Health-Survey (SF-36). The results were correlated with the severity of dizziness, using the Dizziness Handicap-Inventory (DHI), with emotional distress, using the Hospital Anxiety and Depression-Scale (HADS) and with further clinical symptoms and psychosocial parameters. In a multivariate hierarchical regression analysis associated variables which explain significant variance of the mental and physical HRQoL (MCS-36, PCS-36) were identified.

Results

Patients suffering from dizziness showed a markedly reduced mental and physical HRQoL. Higher DHI and HADS scores were correlated with lower MCS-36 and PCS-36 scores. Taken together DHI and vertigo characteristics of dizziness explained 38% of the variance of PCS-36. Overall explained variance of PCS-36 was 45%. HADS and living with a significant other explained 66% of the variance of MCS-36 (overall variance explained: 69%).

Conclusion

Both the physical and mental HRQoL are significantly impaired in patients with dizziness. While the impairment in PCS-36 can be explained by clinical symptoms of the dizziness, MCS-36 impairment is largely associated with psychosocial factors. To improve the patient’s overall well-being significantly and permanently doctors have to keep in mind both, the clinical symptoms and the psychosocial factors. Therefore, in addition to the physical examination doctors should integrate a basic psychological examination into the daily routine with dizziness patients.

Keywords:
Health-related quality of life; Dizziness; Emotional distress; Impairment