odds ratio an important measure in case control study
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Odds Ratio an Important Measure in Case Control Study
DEAR EDITOR, This is regarding the article published in your journal “Diabetes and Oral Health: A Case‐control Study” Vol. 3, No. 11, November 2012. I appreciate the efforts by the author for making excellent study in diabetes and much neglected part of it, oral health. However, I have two important comments, one with regards to design and other with regards to analysis. First, since the study ...
متن کامل[Odds Ratio: review about the meaning of an epidemiological measure].
INTRODUCTION It is very important to review the meaning of the Odds Ratio as a measure of effect and association, as well as, the bias of the Odds Ratio when it is assumed as a risk ratio or a prevalence ratio in the case of frequent disease or frequent health outcome. MATERIAL AND METHODS We simulated in a cohort of 200 individuals with 100 exposed and 100 non-exposed to a risk factor, a fir...
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The use of the term 'odds ratio' in reporting the findings of case-control studies is technically correct, but is often misleading. The meaning of the odds ratio estimates obtained in a case-control study differs according to whether controls are selected from person-time at risk (the study base), persons at risk (the base-population at risk at the beginning of follow-up), or survivors (the pop...
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In the previous column 1 we considered the “two-by-two” contingency table, a simple square array used to provide a tabular display of the relationship between two categorical variables, each having only two levels. Figure 1 shows such a table, where the rows correspond to nutritional status and the columns correspond to disease status. We showed that the relationship between the two variables c...
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Expert systems applications that involve uncertain inference can be represented by a multidimensional contingency table. These tables offer a general approach to inferring with uncertain evidence, because they can embody any form of association between any number of pieces of evidence and conclusions. (Simpler models may be required, however, if the number of pieces of evidence bearing on a con...
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in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...
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عنوان ژورنال:
international journal of preventive medicineجلد ۵، شماره ۵، صفحات ۶۷۲-۰
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