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Dolor ; 23(61): 18-24, jul.2013. tab, ilus
Article in Spanish | LILACS | ID: lil-779249

ABSTRACT

La estructura de tres dimensiones de la Escala de Catastrofización del Dolor (PCS), que incluye la rumia cognitiva, la magnificación y la desesperanza, se ha estudiado en diferentes poblaciones. Sin embargo, dadas las altas correlaciones entre ellas, se ha cuestionado la multidimensionalidad del constructo y se ha planteado como un proceso de segundo orden que engloba los tres procesos de primer orden. El propósito de este estudio fue someter a prueba el modelo de una dimensión de segundo orden en amputados. Asimismo, se exploró la consistencia interna y la relación de la PCS con una escala visual analógica (VAS) para dolor, para inquirir en su convergencia. Participó un total de 135 amputados. El análisis factorial confirmatorio mostró buen ajuste al modelo de un factor de segundo orden. Un coeficiente alfa de Cronbach de .94 se obtuvo, lo que permite confiar en la PCS como una medida válida y confiable. Además, la catastrofización del dolor correlacionó de manera positiva con el dolor...


The three-factor structure of the Pain Catastrophizing Scale (PCS), which comprises the dimensions of rumination, magnification and helplessness, has been studied in diverse populations. However, since they strongly correlate, the multidimensional nature of the construct has been questioned and alternatively proposed as a second order process, encompassing the three primary dimensions. The purpose of this study was to test the second order factor model in amputees. Likewise, PCS internal consistency was explored, as well as the relationship between the PCS and a visual analog scale (VAS) for pain, so as to inquire into its convergent validity. 135 amputees participated in the study. According to CFA, the model yielded a good fit to the data. Cronbach’s alpha was .94, which allows for the appraisal of the PCS as a reliable measure. Also, the association between catastrophic thinking about pain and pain was corroborated...


Subject(s)
Humans , Male , Adult , Female , Young Adult , Middle Aged , Amputees , Catastrophization , Pain Measurement/psychology , Pain/psychology , Psychometrics , Factor Analysis, Statistical , Reproducibility of Results
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