Group Sample Sizes in Non-Regulated Health Care Intervention Trials Described as Randomized Controlled Trials were Overly Similar

We evaluated whether sample sizes in different arms of two-arm parallel group RCTs of non-regulated interventions were systematically closer in size than would plausibly occur by chance if simple randomization had been applied.

Source: Journal of Clinical Epidemiology - December 18, 2019 Category: Epidemiology Authors: Brett D. Thombs, Alexander W. Levis, Marleine Azar, Nazanin Saadat, Kira E. Riehm, Tatiana A. Sanchez, Matthew J. Chiovitti, Danielle B. Rice, Brooke Levis, Claire Fedoruk, Anita Lyubenova, Aurelio L ópez Malo Vázquez de Lara, Lorie A. Kloda, Andrea Ben Tags: Original Article Source Type: research