Odds ratio: aspectos teóricos y prácticos

Odds Ratio, Hazard Ratio and Relative Risk

Odds ratio (OR) is a statistic commonly encountered in professional or scientific medical literature. Most readers perceive it as relative risk (RR), although most of them do not know why that would be true. But since such perception is mostly correct, there is nothing (or almost nothing) wrong with that. It is nevertheless useful to be reminded now and then what is the relation between the rel...

Prevalence odds ratio v prevalence ratio.

Statistics notes. The odds ratio.

In recent years odds ratios have become widely used in medical reports—almost certainly some will appear in today’s BMJ. There are three reasons for this. Firstly, they provide an estimate (with confidence interval) for the relationship between two binary (“yes or no”) variables. Secondly, they enable us to examine the effects of other variables on that relationship, using logistic regression. ...

Fundamentos teóricos y metodológicos para el etiquetado semántico de CESS-CAT y CESS-ESP

The aim of this article is to establish the theoretical basis of the semantic annotation of the CESS-ESP and CESS-CAT corpora, by means of assigning to each predicate a Lexicosemantic Structure. The lexicosemantic patterns determine the argument structure, the correspondence between the arguments and the verb, and the diathesis alternations. The semantic annotation is carried out semi-automatic...

Prevalence odds ratio versus prevalence ratio: choice comes with consequences.

Odds ratio, risk ratio, and prevalence ratio are some of the measures of association which are often reported in research studies quantifying the relationship between an independent variable and the outcome of interest. There has been much debate on the issue of which measure is appropriate to report depending on the study design. However, the literature on selecting a particular category of th...