Subjective quality of life in severely mentally ill patients: A comparison of two instruments
Cite this article as: Ritsner, M., Kurs, R., Kostizky, H. et al. Qual Life Res (2002) 11: 553. doi:10.1023/A:1016323009671 Abstract
Although many quality of life (QOL) scales have been developed, comparison of specific QOL instruments is lacking. We compared the psychometric properties of two QOL measures in parallel samples of mentally disturbed and non-patient subjects. We simultaneously administered the Quality of Life Enjoyment and Satisfaction Questionnaire (Q-LES-Q) and self-report items of the Lancashire Quality of Life Profile (LQOLP) to 199 patients with severe mental disorders and 175 non-patients. The patients were evaluated with psychiatric rating scales. We identified five concordant domains, and five instrument-specific domains for the LQOLP and four for the Q-LES-Q. The Q-LES-Q provides better psychometric properties than the LQOLP in both samples. Both instruments show a good capacity to evaluate QOL and discriminate between the patients and non-patient controls. Within the patient sample, both QOL measures showed similarly negative correlations with severity of depression, but not mania, positive, negative, and general symptomatology. Both instruments proved to be mental health related, but neither was mental-disorder specific. Despite the acceptable psychometric properties and correlation of general QOL indices, similar QOL domains proved to be instrument specific and not sufficiently compatible. These discrepancies should be considered when comparing evaluations from similar domains in these QOL scales.
Psychiatric patients Quality of life scales Reliability Validity References
Wilson IB, Cleary PD. Linking clinical variables with health-related quality of life. A conceptual model of patient outcomes. JAMA 1995; 273: 59-65.
Testa MA, Simonson DC. Assessment of Quality of Life Outcomes. N Engl J Med 1996; 334: 835-840.
Katsching H. Schizophrenia and quality of life. Acta Psychiatr Scand Suppl 2000; 102 (407): 33-37.
WHOQOL Group. The World Health Organization Quality of Life Assessment 1q(WHOQOL): Position paper from the World Health Organization. Soc Sci Med 1995; 41: 1403-1409.
Lehman A. Measures of quality of life among persons with severe and persistent mental disorders. Soc Psychiatry Psychiatr Epidemiol 1996; 31: 78-88.
Priebe SI, Roeder-Wanner UU, Kaiser W. Quality of life in first-admitted schizophrenia patients: A follow-up study. Psychol Med 2000; 30: 225-230.
Browne S, Roe M, Lane A, et al. Quality of life in schizophrenia: Relationship to sociodemographic factors, symptomatology and tardive dyskinesia. Acta Psychiat Scand 1996; 94: 118-124.
Heslegrave RJ, Awad AG, Boruganti LN. The influence of neurocognitive deficits and symptoms on the quality of life in schizophrenia. J Psychiatry Neurosci 1997; 22: 235-243.
Carpiniello B, Lai GL, Pariante CM, Carta MG, Rudas N. Symptoms, standards of living and subjective quality of life: A comparative study of schizophrenic and depressed outpatients. Acta Psychiat Scand 1997; 96: 235-241.
Koivumaa-Honkanen HT, Honkanen R, Antikainen R, Hintikka J, Viinamaki H. Self-reported life satisfaction and treatment factors in patients with schizophrenia, major depression and anxiety disorder. Acta Psychiatr Scand 1999; 99: 377-384.
Tollefson GD, Andersen SW. Should we consider mood disturbance in schizophrenia as an important determinant of quality of life? J Clin Psychiatry 1999; 60(Suppl 5): 23-29.
Ho BC, Nopoulos P, Flaum M, Arndt S, Andreasen NC. Two-year outcome in first-episode schizophrenia: predictive value of symptoms for quality of life. Am J Psychiatry 1998; 155: 1196-1201.
Voruganti L, Heslegrave R, Awad AG, Seeman MV. Quality of life measurement in schizophrenia: Reconciling the quest for subjectivity with the question of reliability. Psychol Med 1998; 28: 165-172.
Cramer JA, Rosenheck R, Xu W, Thomas J, Henderson W, Charney DS. Quality of Life in Schizophrenia: A Comparison of Instruments. Schizophr Bull 2000; 26: 659-666.
Barry MM, Zissi A. Quality of life as an outcome measure in evaluating mental health services: A review of the empirical evidence. Soc Psychiatry Psychiatr Epidemiol 1997; 32: 38-47.
Van Nieuwenhuizen C, Schene AH, Boevink WA, Wolf JRLM. Measuring the quality of life of clients with severe mental illness: A review of instruments. Psychiatr Rehabil J 1997; 20: 33-41.
Bishop SL, Walling DP, Dott SG, Folkes CC, Bucy J. Refining quality of life: Validating a multidimensional factor measure in the severe mentally ill. Qual Life Res 1999; 8: 151-160.
Lehman AF, Postrado LT, Rachuba LT. Convergent validation of quality of life assessments for persons withsevere mental illnesses. Qual Life Res 1993; 2: 327-333.
Heinrichs DW, Hanlon TE, Carpenter WT Jr. The Quality of Life Scale: An instrument for rating the schizophrenic deficit syndrome. Schizophr Bull 1984: 10: 388-398.
Oliver J, Huxley P, Bridges K, Mohammed H. Quality of Life and Mental Health Service. London and New York: Routledge, 1996.
Endicott J, Nee J, Harrison W, Blumenthal R. Quality of Life Enjoyment and Satisfaction Questionnaire: A new measure. Psychopharmacol Bull 1993: 29: 321-326.
Dott SG, Walling DP, Bishop SL, Bucy JE, Folkes CC. The efficacy of short-term treatment for improving quality of life: A pilot study. J Nerv Ment Dis 1996; 184: 507-509.
Russo J, Roy-Byrne P, Reeder D, et al. Longitudinal assessment of quality of life in acute psychiatric inpatients: Reliability and validity. J Nerv Ment Dis 1997; 185: 166-175.
Gupta S, Kulhara P, Verma SK. Quality of life in schizophrenia and dysthymia. Acta Psychiat Scand 1998; 97: 290-296.
Zissi A, Barry MM, Cochrane R. A mediational model of quality of life for individuals withsevere mental health problems. Psychol Med 1998; 28: 1221-1230.
Kemmler G, Holzner B, Kopp M, et al. Comparison of two quality-of-life instruments for cancer patients: The functional assessment of cancer therapy-general and the European Organization for Researchand Treatment of Cancer Quality of Life Questionnaire-C30. J Clin Oncol 1999; 17: 2932-2940.
American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, 4th ed. Washington, DC: American Psychiatric Association, 1994.
Kay SR, Fiszbein A, Opler LA. The positive and negative syndrome scale (PANSS) for schizophrenia. Schizophr Bull 1987; 13: 261-276.
Montgomery SA, Asberg M. A new depression scale designed to be sensitive to change. Br J Psychiatry 1979; 134: 382-389.
Bech P, Rafaelsen OJ, Kramp P, Bolwig TG. The Mania Rating Scale: Scale construction and inter-observer agreement. Neuropharmacology 1978; 17: 430-431.
Lehman AF. The well-being of chronic mental patients: Assessing their quality of life. Arch Gen Psychiatry 1983; 40: 369-373.
Oliver JP, Huxley PJ, Priebe S, Kaiser W. Measuring the quality of life of severely mentally ill people using the Lancashire Quality of Life Profile. Soc Psychiatry Psychiatr Epidemiol 1997; 32: 76-83.
Hintze JL NCSS 6.0. Statistical System for Windows. User's Guide. Number Cruncher Statistical Systems: Kaysville, Utah, 1998.
van Nieuwenhuizen C, Schene A, Boevink W, Wolf J. The Lancashire quality of life profile: first experiences in the Netherlands. Community Ment Health J 1998; 34: 513-525.
Tempier R, Mercier C, Leouffre P, Caron J. Quality of life and social integration of severely mentally ill patients: A longitudinal study. J Psychiatry Neurosci 1997; 22: 249-255.
Tempier R, Caron J, Mercier C, Leouffre P. Quality of life of severely mentally ill individuals: A comparative study. Community Ment Health J 1998; 34: 477-485.
Atkinson M, Zibin S, Chuang H. Characterizing quality of life among patients withch ronic mental illness: A critical examination of the self-report methodology. Am J Psychiatry 1997; 154: 99-105.
Larsen EB, Gerlach J. Subjective experience of treatment, side-effects, mental state and quality of life in chronic schizophrenic out-patients treated with depot neuroleptics. Acta Psychiatr Scand 1996; 93: 381-388.
Packer S, Husted J, Cohen S, et al. Psychopathology and quality of life in schizophrenia. J Psychiatry Neurosci 1997; 22: 231-234.
Google Scholar Copyright information
© Kluwer Academic Publishers 2002