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Revista alergia México
versión On-line ISSN 2448-9190
Resumen
RENDON-MACIAS, Mario Enrique; GARCIA, Heladia y VILLASIS-KEEVER, Miguel Ángel. Risk, association, and impact measures in clinical research studies. How to interpret them for their application in medical care. Rev. alerg. Méx. [online]. 2021, vol.68, n.1, pp.65-75. Epub 30-Ago-2021. ISSN 2448-9190. https://doi.org/10.29262/ram.v68i1.886.
The practice of evidence-based medicine includes the critical analysis of clinical research studies, and, within it, the interpretation of the results reported. In addition, to statistical data, there are estimators that can help clinicians transfer research findings to routine clinical practice. These estimators are measures of risk, association, and impact. Risk measures report current uncertainty or probability (prevalence of a disease, sensitivity, specificity) or for future events (cumulative incidence, incidence density). Measures of association are related to the identification of the risk in order to determine whether certain factors increase or decrease the probability of development of a disease (relative risk, odds ratio, hazard ratio). While measures of impact allow, among other things, to estimate the effect of a treatment (relative risk reduction, absolute risk reduction, number needed to treat). In this review, each of these estimators is described, defined, and presented with examples.
Palabras llave : Risk measures; Measures of association; Measures of impact; Evidence-based medicine.