Los costes indirectos de la cefalea tensional. Una revisión sistemática de la literatura / The indirect costs of tension type headache. A systematic literature review

Objetivo: El objetivo de este trabajo fue revisar sistemáticamente la literatura publicada con relación a los costes indirectos estimados asociados al TTH.DiseñoEsta revisión sistemática siguió la declaración de elementos de informes preferidos para revisiones sistemáticas y metaanálisis (PRISMA).Fuentes de datosLa revisión se realizó en dos bases de datos principales, PubMed y EconLit, y fue completada con la búsqueda de literatura gris.Selección de estudiosEl criterio básico para la inclusión de estudios fue que presentaran al menos una medida de costes indirectos específicos del TTH.Extracción de datosSe seleccionaron finalmente 12 estudios para la extracción de la información. De todos los artículos seleccionados se sintetizaron las características del diseño del estudio, los tipos de coste incluidos, así como el instrumento de medida, y los resultados principales.ResultadosLa búsqueda arrojó en total 568 estudios. Se encontró heterogeneidad en los diseños y muestras/poblaciones de los estudios incluidos. Sólo dos estudios estimaron costes directos e indirectos para el TTH. Entre los resultados más destacables, encontramos un impacto moderado estimado de la discapacidad por TTH (entre 0,037 y 0,15 por persona, 0,06-0,09% para la población). Las pérdidas de productividad y eficiencia se observaron y fueron muy heterogéneas. La disposición a pagar por un tratamiento efectivo oscilaría entre $1,32 y $9,20 mensuales. La calidad de vida es baja, entre 28,2 y 28,4 puntos sobre 100, y la calidad de vida relacionada con la salud, parece mejorar significativamente con un tratamiento.ConclusionesA pesar de la elevada heterogeneidad de los resultados, podemos concluir que la cefalea tensional se caracteriza por un impacto moderado en la discapacidad, en la productividad y eficiencia en el trabajo o la escuela, y en la calidad de vida de quien la sufre.

Objective: The objective of this work was to systematically review the published literature in relation to the estimated indirect costs associated with TTH.DesignThis systematic review followed the Preferred Reporting Items Statement for Systematic Reviews and Meta-analyzes (PRISMA).Data sourcesThe review was performed in two main databases, PubMed and EconLit, and was completed with the gray literature search.Study selectionThe basic criterion for the inclusion of studies was that they present at least one measure of indirect costs specific to TTH.Data extraction12 studies were finally selected for information extraction. Of all the selected articles, the characteristics of the study design, the types of costs included, as well as the measurement instrument, and the main results were synthesized.ResultsThe search yielded a total of 568 studies. Heterogeneity was found in the designs and samples/populations of the included studies. Only two studies estimated direct and indirect costs for TTH. Among the most notable results, we find an estimated moderate impact of disability due to TTH (between 0.037 and 0.15 per person, 0.06–0.09% for the population). Productivity and efficiency losses were observed and were very heterogeneous. The willingness to pay for effective treatment would range from $1.32 to $9.20 per month. Quality of life is low, between 28.2 and 28.4 points out of 100, and health-related quality of life seems to improve significantly with treatment.ConclusionsDespite the high heterogeneity of the results, we can conclude that tension headache is characterized by a moderate impact on disability, on productivity and efficiency at work or school, and on the quality of life of those who suffer it.

[The indirect costs of tension type headache. A systematic literature review]. / Los costes indirectos de la cefalea tensional. Una revisión sistemática de la literatura.

OBJECTIVE: The objective of this work was to systematically review the published literature in relation to the estimated indirect costs associated with TTH. DESIGN: This systematic review followed the Preferred Reporting Items Statement for Systematic Reviews and Meta-analyzes (PRISMA). DATA SOURCES: The review was performed in two main databases, PubMed and EconLit, and was completed with the gray literature search. STUDY SELECTION: The basic criterion for the inclusion of studies was that they present at least one measure of indirect costs specific to TTH. DATA EXTRACTION: 12 studies were finally selected for information extraction. Of all the selected articles, the characteristics of the study design, the types of costs included, as well as the measurement instrument, and the main results were synthesized. RESULTS: The search yielded a total of 568 studies. Heterogeneity was found in the designs and samples/populations of the included studies. Only two studies estimated direct and indirect costs for TTH. Among the most notable results, we find an estimated moderate impact of disability due to TTH (between 0.037 and 0.15 per person, 0.06-0.09% for the population). Productivity and efficiency losses were observed and were very heterogeneous. The willingness to pay for effective treatment would range from $1.32 to $9.20 per month. Quality of life is low, between 28.2 and 28.4 points out of 100, and health-related quality of life seems to improve significantly with treatment. CONCLUSIONS: Despite the high heterogeneity of the results, we can conclude that tension headache is characterized by a moderate impact on disability, on productivity and efficiency at work or school, and on the quality of life of those who suffer it.