Scientific Writing Series: Cohort studies

• Autores: Quispe-Gutiérrez, Antonio Marty, Porta-Quinto, Thalia, Maita, Yuri A., Sedano, Claudia A.
• Formato: artículo
• Fecha de Publicación: 2020
• Institución: Cuerpo Médico Hospital Nacional Almanzor Aguinaga Asenjo
• Repositorio: Revista del Cuerpo Médico Hospital Nacional Almanzor Aguinaga Asenjo
• Lenguaje: español
• OAI Identifier: oai:cmhnaaa_ojs_cmhnaaa.cmhnaaa.org.pe:article/751
• Enlace del recurso: https://cmhnaaa.org.pe/ojs/index.php/rcmhnaaa/article/view/751
• Nivel de acceso: acceso abierto
• Materia: Estudio de Cohortes; Diseño de Investigación; Estudios Epidemiológicos; Limitaciones; Fortalezas; Cohort study; Research design; Epidemiologic Studies; Limitations; Strengths

Objetive. The cohort study is an observational design. This only includes participants who have the same risk of being exposed, then compares who is exposed and unexposed presents the outcome of interest during the same period. The temporality between the exposure and the outcome of interest in a cohort study is well defined because it is certain that the exposure antecedent to the outcome of interest. Cohort studies can be prospective, retrospective, or a combination of both. One of the main advantages is its longitudinal nature, making it possible to estimate the incidence and relative risk as an association of interest. Some variables may vary over time, so it is essential to use advanced data modeling techniques such as fixed and random effects models.