Erschienen in:
21.04.2020 | Research and Reporting Methods
Including Non-inferiority Trials in Contemporary Meta-analyses of Chronic Medical Conditions: a Meta-epidemiological Study
verfasst von:
Zhen Wang, PhD, Tarek Nayfeh, MD, Nigar Sofiyeva, MD, MS, Oscar J. Ponte, MD, Rami Rajjoub, Konstantinos Malandris, MD, Mohamed Seisa, MD, Haitao Chu, PhD, MD, Mohammad Hassan Murad, MD, MPH
Erschienen in:
Journal of General Internal Medicine
|
Ausgabe 7/2020
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Excerpt
Randomized controlled trials (RCTs) have historically addressed whether one treatment is superior to another. Therefore, their null hypothesis was that no statistically significant difference exists between the two treatments. In recent years, another type of RCTs, non-inferiority trials (NITs), has become prevalent in the medical literature.
1‐4 Contrary to superiority trials, NITs try to answer whether a treatment is no worse than the control treatment by a predefined non-inferiority margin. The null hypothesis of NITs is that the treatment is worse than the control by more than the non-inferiority margin; rejecting the null hypothesis means the treatment is not inferior to the control (i.e., the treatment is at least as good as the control). …