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STATISTICS
Year : 2019  |  Volume : 10  |  Issue : 3  |  Page : 137-139

Study designs: Part 4 – Interventional studies


1 Director, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
2 Department of Anaesthesiology, Tata Memorial Centre, Mumbai, Maharashtra, India

Correspondence Address:
Dr. Rakesh Aggarwal
Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/picr.PICR_91_19

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In the fourth piece of this series on research study designs, we look at interventional studies (clinical trials). These studies differ from observational studies in that the investigator decides whether or not a participant will receive the exposure (or intervention). In this article, we describe the key features and types of interventional studies.


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