One about Romans
Cohort studies. The characteristics of cohort studies, their measures of association and impact, and their most characteristic features are described.
Science without sense...double nonsense
Evidence Based Medicine pills
Science without sense...double nonsense
Evidence Based Medicine pills
Category Epidemiology
Which family you belong?
Classification of epidemiological studies. Classification of epidemiological studies is made according to their observational or analytical character, directionality and temporality and sampling. As we already know from previous posts, the evidence-based medicine systematics begins with a knowledge gap that moves us…
Simplifying the impact
Other impact numbers. Other impact number, absolute and relative impact numbers, used to assess the results of observational studies are reviewed.
The tribulations of an interval
NNT’s confidence interval. The calculation and interpretation of the confidence intervals of the number needed to treat are described, including the negative extremes of the interval.</p The number needed to treat (NNT) is an impact measure that tells us in…
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Re-randomization in clinical trials. Re-randomization is the ability to randomize trial participants on more than one occasion, useful when large samples are required.