Objective: To validate the Spanish language version of the broad "self-perception of burden of care scale" by Cousineau et al. Methods: The sample consisted of 161 patients undergoing chronic hemodialysis at five dialysis centers in the city of Santiago -Chile. This scale was translated into Spanish and a pilot test was conducted with ten patients; after this procedure, we developed the final instrument to be subjected to the validation process. Results: The reliability of the scale was stable, with fluctuations of the Cronbach's alpha coefficient of 0.903 and 0.915; we decided therefore to maintain the 25 original items within the Spanish version.
RESUMOObjetivo: Validar, en la lengua española, la versión amplia de la "Escala de Autopercepción de carga de los cuidados" de Cousineau et al. Métodos: La muestra estuvo constituída por 161 pacientes sometidos a hemodiálisis crónica en cinco Centros de Diálisis de la ciudad de Santiago -Chile. Esa Escala fue traducida al español y fue realizado un test piloto con diez pacientes; después de este procedimiento, se elaboró el instrumento final sometido al proceso de validación. Resultados: La confiabilidad de la escala se mantuvo estable, con fluctuación del coeficiente alpha de Cronbach entre 0,903 y 0, 915, decidiéndose así, por mantener los 25 items originales en la versión en español. Conclusión: La confiabilidad total del instrumento fue de 0,91, muy próxima de la obtenida en la versión original (0,93).
The construction industry is known for its high rate of accidents. Among the different possible causes of this situation, we could find lack of sleep and fatigue. Chronic sleep deprivation is a determining factor in the deterioration of vigilance and alert, and consequently a risk factor for occupational accidents. Fatigue is the answer of our organism to sustained physical and mental stress. Regretfully, those topics have been ovelooked in the construction industry. The objective of this study is to understand better these phenomena, such as sleep duration and fatigue, and whether they are interrelated, and to propose strategies to mitigate them and contribute to the reduction of accidents in construction projects. We worked with 154 male construction workers from one Chilean construction company. To assess sleep quality, we used the Pittsburgh Sleep Quality Index (PSQI). To evaluate fatigue, we used a personal computer version of the Psychomotor Vigilance Test (PC-PVT) that measures alertness and vigilance. This 5-minute test was performed on construction workers on-site in the morning. Those people who took part in the test were classified into various groups according to self-reported sleep hours, namely: 7–9 h (26%), 5–7 h (61.7%), and <5 h (12.3%). These results were compared for three variables (Mean Reaction Time (RT), 10% faster, and 10% slower) using an Analysis of Variance (ANOVA) test. Differences were found for Mean RT and Slowest 10%, the difference being greater in the group that reported sleeping <5 h, but without statistical significance. Studies with a greater number of subjects and measurements are required throughout the working day.
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