:: Volume 19, Issue 2 (summer 2021) ::
jmj 2021, 19(2): 1-6 Back to browse issues page
Clinical Trial
Razieh Zahedi , Karamatollah Rahmanian , Vahid Rahmanian *
Research Center for Social Determinants of Health, Jahrom University of Medical Sciences, Jahrom, IR Iran
Abstract:   (448 Views)
Introduction:
Clinical trials are a common type of medical research that has grown in number over the past decade. Intervention studies or trials are the most authoritative type of epidemiological studies and provide the strongest evidence of causation and effect relationships between phenomena. Despite the usefulness of many of these studies, potential bias can distort the results of the study. Therefore, in this study, we investigated a summary of the types of clinical trials studies, design and possible biases.
Keywords: Experimental studies, Trial, Random allocation
Full-Text [PDF 456 kb]   (105 Downloads)    
Type of Study: Applicable | Subject: epidmilojgy
Received: 2021/05/2 | Revised: 2021/06/29 | Accepted: 2021/05/18

Research code: 123456
Ethics code: 1234567


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Volume 19, Issue 2 (summer 2021) Back to browse issues page