Evidence Based Medicine pills
Evidence Based Medicine pills
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…
Bayes’ theorem. We describe the concept of conditional probability and the development of Bayes’ theorem, used to calculate the conditional probability of an event. Today we are going to see another of those examples where intuition about the value of certain…
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.
Random error and systematic error. We describe two types of errors, the random error due to measurement randomness and inaccuracies, and the systematic error or bias.
Hybrid designs The main observational hybrid designs are described: cohort nested cases and controls studies and cohort and case-control studies.