Why we need confidence intervals.
The estimation approach to statistical analysis aims to quantify the effect of interest as an "estimate" of a clinically relevant quantity and to quantify the uncertainty in this estimate by means of a confidence interval (CI). As such, results expressed in this form are much more informative than results presented just as p values. This article focuses on the principles rather than the mathematics of CIs and discusses interpretation of CIs and some common misuses. CIs can be constructed for ...Expand abstract
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