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Health and Quality of Life Outcomes
Published in: Health and Quality of Life Outcomes 1/2017

Open Access 01-01-2017 | Short report

Validation of the Pittsburgh sleep quality index in community dwelling Ethiopian adults

Authors: Mohammed Salahuddin, Tarekegn Tesfaye Maru, Abera Kumalo, Seithikurippu R. Pandi-Perumal, Ahmed S. Bahammam, Md Dilshad Manzar

Published in: Health and Quality of Life Outcomes | Issue 1/2017

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Abstract

Background

The applicability of the Pittsburgh Sleep Quality Index (PSQI) in screening of insomnia is demonstrated in various populations. But, the tool has not been validated in a sample of Ethiopians. Therefore, this study aimed to assess its psychometric properties in community dwelling Ethiopian adults.

Material and methods

Participants (n = 311, age = 25.5 ± 6.0 years and body mass index = 22.1 ± 2.3 kg/m2) from Mizan-Aman town, Southwest Ethiopia completed the PSQI and a semi-structured questionnaire for socio-demographics. Clinical interview for screening of insomnia according to the International Classification of Sleep Disorders was carried out as a concurrent validation measure.

Results

Overall, the PSQI scale did not have floor effect and ceiling effects. Moderate internal consistency (Cronbach’s alpha was 0.59) and sufficient internal homogeneity as indicated by correlation coefficient between component scores and the global PSQI score was found. The PSQI was of good value for screening insomnia with optimal cut-off scores of 5.5 (sensitivity 82%, specificity 56.2%) and the area under the curve, 0.78 (p < 0.0001). The PSQI has unidimensional factor structure in the Ethiopian community adults for screening insomnia.

Conclusion

The PSQI has good psychometric validity in screening for insomnia among Ethiopians adults.
Appendix
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Metadata
Title
Validation of the Pittsburgh sleep quality index in community dwelling Ethiopian adults
Authors
Mohammed Salahuddin
Tarekegn Tesfaye Maru
Abera Kumalo
Seithikurippu R. Pandi-Perumal
Ahmed S. Bahammam
Md Dilshad Manzar
Publication date
01-01-2017
Publisher
BioMed Central
Published in
Health and Quality of Life Outcomes / Issue 1/2017
Electronic ISSN: 1477-7525
DOI
https://doi.org/10.1186/s12955-017-0637-5

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