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Reliability and Validity of the Hungarian version of the Pittsburgh Sleep Quality Index (PSQI-HUN): comparing psychiatric patients with control subjects
Semmelwies University, Hungary.
Semmelwies University, Hungary ; Pázmány Péter Catholic University, Hungary.
Semmelwies University, Hungary.
Semmelwies University, Hungary.
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2016 (English)In: Sleep and Breathing, ISSN 1520-9512, E-ISSN 1522-1709, Vol. 20, no 3, p. 1045-1051Article in journal (Refereed) Published
Abstract [en]

Purpose

The Pittsburgh Sleep Quality Index is used to evaluate subjective sleep quality, and it is commonly used in clinical research. Subjective sleep quality is also an important clinical measure in patients with psychiatric disorders. The aim of the present study was to evaluate the reliability and validity of the Hungarian version of the Pittsburgh Sleep Quality Index (PSQI-HUN) in both clinical and non-clinical samples.

Methods

The original version of PSQI was translated into Hungarian according to standard guidelines. The PSQI-HUN and the Athens Insomnia Scale (AIS) were subsequently administered to 53 psychiatric patients (schizophrenia, recurrent depressive disorder, mixed anxiety, and depressive disorder) and 178 healthy controls.

Results

Internal consistency as measured by Cronbach’s alpha in the whole sample was 0.79. Pearson’s product-moment correlations between component scores and the global scores were high (0.59–0.88) in the PSQI-HUN indicating the homogeneity of the scale. PSQI-HUN global and component scores differed significantly between psychiatric patients and control subjects. In the psychiatric patient subsample, schizophrenics had lower global scores compared to the other two patient groups. The analysis of convergent validity showed significant correlations between the AIS and the global as well as the component scores of the PSQI-HUN (except the component of sleep latency).

Conclusions

The present study concludes that the PSQI-HUN is a reliable, valid, and standardized measure for assessment of the subjective sleep quality in clinical and research settings.

Place, publisher, year, edition, pages
Springer, 2016. Vol. 20, no 3, p. 1045-1051
Keywords [en]
Pittsburgh Sleep Quality Index, Reliability, Validity, Sleep disorders, Psychiatric disorders
National Category
Psychiatry Psychology
Identifiers
URN: urn:nbn:se:lnu:diva-73105DOI: 10.1007/s11325-016-1347-7OAI: oai:DiVA.org:lnu-73105DiVA, id: diva2:1199315
Available from: 2018-04-20 Created: 2018-04-20 Last updated: 2018-04-20Bibliographically approved

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Harmat, László

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CiteExportLink to record
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  • apa
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  • Other locale
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