Evidence-based medicine is not a new concept. It is rather the attention to study quality and to the classification of the level of evidence that has changed recently. Simply publishing evidence in a peer-reviewed journal does not constitute a reason to change individual clinical practices. The evidence must be scrutinized closely. The validity of the statistical analysis is an integral element of such scrutiny. The challenge then becomes to offer adequate information about the design and methods of a study without overwhelming the reader (usually a clinician) with complex statistical terms and calculations.