Quality of Life Research

, Volume 16, Issue 1, pp 17–29 | Cite as

The impact of mental illness on quality of life: A comparison of severe mental illness, common mental disorder and healthy population samples

  • Sherrill Evans
  • Sube Banerjee
  • Morven Leese
  • Peter Huxley
Article

Abstract

Patient-centred outcomes such as quality of life (QOL) are valued and used extensively in mental healthcare evaluations, but concerns remain about their practical application due to perceived measurement issues, including responsiveness and relationships with objective indicators and depression. Evidence from general population studies challenge some assumptions, suggesting that measurement difficulties might relate to the characteristics of mental health samples, rather than measurement itself. This paper assesses the impact of mental illness on QOL and its measurement, examining whether the life-conditions, opportunities and QOL of different mental health-status groups vary, and if explanatory models of domain-specific and global QOL differ. Objective life-conditions, access to life-opportunities and subjective QOL were assessed over 2 years, using the same methodology in severe mental illness (SMI; n = 149 (baseline)/n = 126 (follow-up)), common mental disorder (CMD; n = 794/354) and no disorder (n = 1119/583) groups. Objective life-conditions were worse in the SMI group than in mentally healthy population and CMD groups, but the opportunities available to the SMI group were no more restricted than the CMD group. Subjective QOL ratings reflected this; SMI group scores were lower than the healthy population and in some life-domains the CMD group. Models of QOL suggested that life-quality was explained differently in the three groups. QOL studies combining mental health samples should control for health-status group, and domain-specific and global indicators of lifestyle and opportunity.

Keywords

Common mental disorder General population Measurement Severe mental illness Quality of life 

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Copyright information

© Springer Science+Business Media B.V. 2006

Authors and Affiliations

  • Sherrill Evans
    • 1
    • 2
    • 4
  • Sube Banerjee
    • 1
  • Morven Leese
    • 1
  • Peter Huxley
    • 3
  1. 1.King’s CollegeInstitute of PsychiatryLondonUK
  2. 2.Social Work and Social Care Section, Health Services Research Department, David Goldberg CentreInstitute of PsychiatryLondonUK
  3. 3.Department of Applied Social SciencesSwansea UniversitySwanseaUK
  4. 4.Social Work and Social Care Section (Box 032), Health Services Research DepartmentDavid Goldberg Centre, Institute of PsychiatryLondonUK

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