| Sumario: | Statistical errors are surprisingly common and threaten the credibility of biomedical research.[[1], [3]] This issue has received increasing attention in recent years, including in the popular media,[[4], [6]] prompting calls for statistical reform. We present examples of 10 common mistakes that occur during four phases of research: study design; data wrangling and cleaning; data analysis; and reporting. B Solution: b The authors should have designed the study as a noninferiority trial, which aims to show that one intervention is not "unacceptably worse" than another.[14] In a noninferiority study, researchers specify I a priori i a noninferiority margin - a difference that would be considered too small to care about (eg, an increase in adiponectin of 0.5 mg/L). Conclusions Statistical errors can occur during all phases of a study, from study design to reporting.
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