Understanding controlled trials: What is a patient preference trial?

What is a randomised controlled trial?

What is Preference Mapping

As the capacity to summarize of the preference map diminishes with the number of consumers (the number of axes to interpret increases), a non-metric PCA is sometimes used to reduce the number of necessary axes. The non-metric PCA consists of a monotone transform of the data so that the variability explained by the k (k=2 or 3) first axes is maximized. This transform implies that we consider the...

Introducing “Agreement on what to Measure in Randomised Controlled Trials in Burn Care” Research Project

پروژه پژوهشی "توافق درباره‌ی پیامدهای قابل اندازه‌گیری در کارآزمایی های کنترل‌دار مربوط به مراقبت‌های سوختگی" توسط گروهی از پژوهش‌گران با تجربه، در حوزه سوختگی، زیر نظر دکتر Young از کشور انگلستان در حال انجام می‌باشد. هدف نهایی از انجام این مطالعه، تهیه و تدوین مجموعه‌ای از پیامدهای اساسی (core outcome set (COS)) است که در گزارش کارآزمایی های شاهد‌دار تصادفی مربوط به مراقبت‌های سوختگی باید مور...

P-value: What is and what is not

The misinterpretation and misuse of p-value have been increasing for decades. In March 2016, the American Statistical Association released a statement to warn about the use and interpretation of p-value. In this study, we provided a definition and discussion of p-value and emphasized the importance of its accurate interpretation.    

"You decide doctor". What do patient preference arms in clinical trials really mean?

I t is well established that random assignment between experimental treatment and control arms is the gold standard in clinical trials to minimise differences between the groups being compared and safeguard against bias. There is, however, a fear that such random allocation may not accord with patients’ preferences for the intervention or treatment, thereby compromising trial validity. It is po...