Análisis de contenido y nivel de evidencia de los artículos sobre Covid-19 más citados en la Web of Science
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Resumen: El crecimiento sin precedentes de la bibliografía científica sobre Covid-19 y la rapidez en su publicación ha llevado a cuestionar la calidad y el proceso de revisión por pares. Este estudio tiene como objetivo analizar las características de las publicaciones con mayor impacto sobre Covid-19, principalmente las relacionadas con el contenido, la calidad y nivel de evidencia de los estudios. Para ello, se buscó en la colección principal de Web of Science los artículos que contenían los términos Covid-19 y SARS-CoV-2 en el campo del título y se seleccionaron los 100 artículos más citados publicados en el año 2020. Además de los datos bibliográficos, se recogieron datos de las fechas de envío, aceptación y publicación en las revistas, principales temas tratados, tipo de estudio y nivel de evidencia según la escala SIGN, así como de la presencia de correcciones. Más de la mitad de los artículos están publicados en 3 revistas, y la mayoría de ellos en los primeros meses de 2020. Los tipos de estudios más frecuentes son series de casos, revisiones narrativas y opiniones de expertos, con solo 1 ensayo clínico controlado aleatorizado. El contenido de los artículos trata principalmente de las características clínicas y complicaciones de los enfermos, métodos diagnósticos y de tratamiento, así como de la epidemiología y características del virus. Los artículos presentan un nivel de evidencia bajo, a pesar de estar publicados en revistas de medicina con muy alto factor de impacto. El tiempo transcurrido entre la fecha de envío y de publicación es muy corto y cuestiona la realización y/o rigor del proceso de revisión por pares.
Abstract: The scientific literature on Covid-10 has seen unprecedented growth, being published so rapidly as to question its quality and the peer review process. This research analyzes the characteristics of the publications on Covid-19 with the greatest impact, mainly considering their content and the quality and level of evidence of the studies. The Web of Science Core Collection was searched for articles containing the terms “Covid-19” and “SARS-CoV-2,” and the 100 most cited articles published in 2020 were selected. The data extracted included bibliographic data, journal submission, acceptance, and publication dates, the main topics covered, the type of study, and the level of evidence according to the SIGN scale, as well as the existence of corrections. Half of the articles were published in three journals, most of them in the early months of 2020. The most frequent types of studies were case series, narrative reviews, and expert opinions, with only one randomized controlled clinical trial. The articles focused mainly on the clinical characteristics and complications of patients, diagnostic and treatment methods, as well as the epidemiology and characteristics of the virus. The design of these studies reflects a low level of evidence, and data and scientific quality may be affected by how quickly they are published and the peer review process is performed.
Abstract: The scientific literature on Covid-10 has seen unprecedented growth, being published so rapidly as to question its quality and the peer review process. This research analyzes the characteristics of the publications on Covid-19 with the greatest impact, mainly considering their content and the quality and level of evidence of the studies. The Web of Science Core Collection was searched for articles containing the terms “Covid-19” and “SARS-CoV-2,” and the 100 most cited articles published in 2020 were selected. The data extracted included bibliographic data, journal submission, acceptance, and publication dates, the main topics covered, the type of study, and the level of evidence according to the SIGN scale, as well as the existence of corrections. Half of the articles were published in three journals, most of them in the early months of 2020. The most frequent types of studies were case series, narrative reviews, and expert opinions, with only one randomized controlled clinical trial. The articles focused mainly on the clinical characteristics and complications of patients, diagnostic and treatment methods, as well as the epidemiology and characteristics of the virus. The design of these studies reflects a low level of evidence, and data and scientific quality may be affected by how quickly they are published and the peer review process is performed.