Metodologías Cuantitativas 2: Sesgo de confusión y cómo controlar un confusor

Translated title of the contribution: Quantitative Methodologies 2: Confusion bias and how to control a confounding factor

Antonio M. Quispe, María Gracia Alvarez-Valdivia, Silvana Loli-Guevara

Research output: Contribution to journalOriginal Articlepeer-review

5 Scopus citations

Abstract

Addressing confounding bias is one of the challenges when conducting causality studies. This occurs when we report a causal association between an exposure and an outcome, when in fact it could be result of the effect of a third factor called confounding variable. That is, when a confounder variable creates a spurious relationship between the exposure or independent variable and the outcome of interest or dependent variable. By knowing the confounding variables and their association with the exposure of interest, the confounding bias could be controlled. To control for confounding bias, we can use different methods. These include techniques applied in study design, such as restriction, randomization, and coincidence, and techniques used in data analysis, such as stratification, multivariate analysis, standardization, propensity scores, analysis sensitivity and the inverse probability weighting. In this review, we discuss how to identify a confounding variable and the main techniques for controlling for confounding bias.

Translated title of the contributionQuantitative Methodologies 2: Confusion bias and how to control a confounding factor
Original languageSpanish
Pages (from-to)205-212
Number of pages8
JournalRevista del Cuerpo Medico Hospital Nacional Almanzor Aguinaga Asenjo
Volume13
Issue number2
DOIs
StateIndexed - 2020

Bibliographical note

Publisher Copyright:
© Revista del Cuerpo Medico Hospital Nacional Almanzor Aguinaga Asenjo.

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