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      Tamaño muestral en estudios biomédicos

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          Abstract

          En este estudio se enfatiza la importancia de efectuar una estimación del tamaño muestral al emprender una investigación biomédica. Los escenarios más comúnmente encontrados son analizados y se discuten los procedimientos apropiados para establecer tamaños muestrales en estudios de prevalencia, promedios, proporciones, pruebas diagnósticas, concordancia, cohortes y caso-control

          Translated abstract

          This study emphasises the importance of carrying out an estimation of sample size when beginning a biomedical investigation. The most common settings encountered are analised and a discussion of the appropriate methods to determine sample sizes in studies of prevalence, averages, proportions, diagnostic tests, concordance, cohorts and case-control

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          Most cited references27

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          Statistical methods for rates and proportions.

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            Clinical biostatistics: LIV. The biostatistics of concordance

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              Statistical methods for rates and proportions

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                Author and article information

                Journal
                rcp
                Revista chilena de pediatría
                Rev. chil. pediatr.
                Sociedad Chilena de Pediatría (Santiago, , Chile )
                0370-4106
                July 1999
                : 70
                : 4
                : 314-324
                Affiliations
                [01] orgnameUniversidad de Chile orgdiv1 Departamento de Pediatrìa y Cirugía Infantil, Campus Norte, Facultad de Medicina
                Article
                S0370-41061999000400009 S0370-4106(99)07000409
                10.4067/S0370-41061999000400009
                1bc1f06d-f45a-49d1-9df4-b7568fa983ff

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 15, Pages: 11
                Product

                SciELO Chile

                Categories
                BIOESTADISTICA

                sample size,statistics,tamaño muestral,bioestadística,biomedical investigation

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