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dc.contributor.authorGelaye, Bizu
dc.contributor.authorLohsoonthorn, Vitool
dc.contributor.authorLertmeharit, Somrat
dc.contributor.authorPensuksan, Wipawan C.
dc.contributor.authorSanchez, Sixto E.
dc.contributor.authorLemma, Seblewengel
dc.contributor.authorBerhane, Yemane
dc.contributor.authorZhu, Xiaotong
dc.contributor.authorVélez, Juan Carlos
dc.contributor.authorBarbosa, Clarita
dc.contributor.authorAnderade, Asterio
dc.contributor.authorTadesse, Mahlet G.
dc.contributor.authorWilliams, Michelle A.
dc.date.accessioned2020-06-04T18:16:40Z
dc.date.available2020-06-04T18:16:40Z
dc.date.issued2014-12-31
dc.identifier.citationGelaye B., Lohsoonthorn V., Lertmeharit S., Pensuksan WC., Sanchez SE., Lemma S., et al. Construct validity and factor structure of the pittsburgh sleep quality index and epworth sleepiness scale in a multi-national study of African, South East Asian and South American college students. PLoS ONE. 2014; 9(12): e116383.es_PE
dc.identifier.issn1932-6203
dc.identifier.urihttps://hdl.handle.net/20.500.12727/6145
dc.description.abstractBackground The Pittsburgh Sleep Quality Index (PSQI) and the Epworth Sleepiness Scale (ESS) are questionnaires used to assess sleep quality and excessive daytime sleepiness in clinical and population-based studies. The present study aimed to evaluate the construct validity and factor structure of the PSQI and ESS questionnaires among young adults in four countries (Chile, Ethiopia, Peru and Thailand). Methods A cross-sectional study was conducted among 8,481 undergraduate students. Students were invited to complete a self-administered questionnaire that collected information about lifestyle, demographic, and sleep characteristics. In each country, the construct validity and factorial structures of PSQI and ESS questionnaires were tested through exploratory and confirmatory factor analyses (EFA and CFA). Results The largest component-total correlation coefficient for sleep quality as assessed using PSQI was noted in Chile (r = 0.71) while the smallest component-total correlation coefficient was noted for sleep medication use in Peru (r = 0.28). The largest component-total correlation coefficient for excessive daytime sleepiness as assessed using ESS was found for item 1 (sitting/reading) in Chile (r = 0.65) while the lowest item-total correlation was observed for item 6 (sitting and talking to someone) in Thailand (r = 0.35). Using both EFA and CFA a two-factor model was found for PSQI questionnaire in Chile, Ethiopia and Thailand while a three-factor model was found for Peru. For the ESS questionnaire, we noted two factors for all four countries Conclusion Overall, we documented cross-cultural comparability of sleep quality and excessive daytime sleepiness measures using the PSQI and ESS questionnaires among Asian, South American and African young adults. Although both the PSQI and ESS were originally developed as single-factor questionnaires, the results of our EFA and CFA revealed the multi- dimensionality of the scales suggesting limited usefulness of the global PSQI and ESS scores to assess sleep quality and excessive daytime sleepiness.es_PE
dc.format.extentpp. e116383es_PE
dc.language.isoenges_PE
dc.publisherPloses_PE
dc.relation.ispartofseriesPLoS ONE;vol. 9, no. 12
dc.relation.urihttps://doi.org/10.1371/journal.pone.0116383es_PE
dc.rightsinfo:eu-repo/semantics/openAccesses_PE
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/es_PE
dc.sourceRepositorio Académico USMPes_PE
dc.sourceUniversidad San Martín de Porres - USMPes_PE
dc.subjectEstudios transversaleses_PE
dc.subjectTrastornos del sueño-vigiliaes_PE
dc.subjectEncuestas y cuestionarioses_PE
dc.titleConstruct validity and factor structure of the pittsburgh sleep quality index and epworth sleepiness scale in a multi-national study of African, South East Asian and South American college studentses_PE
dc.typeinfo:eu-repo/semantics/articlees_PE
thesis.degree.nameMedicina Humana
thesis.degree.grantorUniversidad de San Martín de Porres. Facultad de Medicina Humana
thesis.degree.disciplineMedicina


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