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Self-report quality of life measure for people with schizophrenia: The SQLS

  • Greg Wilkinson (a1), Bernadette Hesdon (a2), Diane Wild (a3), Ron Cookson (a4), Carole Farina (a5), Vimal Sharma (a6), Ray Fitzpatrick (a7) and Crispin Jenkinson (a8)...
Abstract
Background

Quality of life is the subject of growing interest and investigation.

Aims

To develop and validate a short, self-report quality of life questionnaire (the Schizophrenia Quality of Life Scale, SQLS).

Method

People with schizophrenia in Liverpool were recruited via the NHS. Items, generated from in-depth interviews, were developed into an 80-item self-report questionnaire. Data were factor analysed, and a shorter form measure was tested for reliability and validity. This measure was administered together with other self-report measures – SF–36, GHQ–12 and HADS – to assess validity.

Results

Data were analysed to produce a final 30-item questionnaire, comprising three scales (‘psychosocial’, ‘motivation and energy’, and ‘symptoms and side-effects’) addressing different SQLS dimensions. Internal consistency reliability of the scale was found to be satisfactory. There was a high level of association with relevant SF–36, GHQ–12 and HADS scores.

Conclusions

The SQLS was completed within 5–10 minutes. It possesses internal reliability and construct validity, and promises to be a useful tool for the evaluation of new treatment regimes for people with schizophrenia.

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Copyright
Corresponding author
Professor Greg Wilkinson, University Department of Psychiatry, Royal Liverpool University Hospital, Prescot Street, Liverpool L69 3BX
Footnotes
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Declaration of interest

Janssen-Cilag Ltd funded the project. G.W. is Editor of The British Journal of Psychiatry.

Footnotes
References
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The British Journal of Psychiatry
  • ISSN: 0007-1250
  • EISSN: 1472-1465
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Self-report quality of life measure for people with schizophrenia: The SQLS

  • Greg Wilkinson (a1), Bernadette Hesdon (a2), Diane Wild (a3), Ron Cookson (a4), Carole Farina (a5), Vimal Sharma (a6), Ray Fitzpatrick (a7) and Crispin Jenkinson (a8)...
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