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Cross-cultural validity of the spanish version of PHQ-9 among pregnant peruvian women: a rasch item response theory analysis
(Elsevier B.V., 2014-04)
Acceso abierto
Objective
We sought to evaluate the validity of the Spanish language version of the patient health questionnaire-9 (PHQ-9) depression scale in a large sample of pregnant Peruvian women using Rasch item response theory ...
Placental genome and maternal-placental genetic interactions: a genome-wide and candidate gene association study of placental abruption
(Plos, 2014-12-30)
Acceso abierto
While available evidence supports the role of genetics in the pathogenesis of placental abruption (PA), PA-related placental genome variations and maternal-placental genetic interactions have not been investigated. Maternal ...
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, 2014-12-31)
Acceso abierto
Background
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 ...
