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Level 2 Evidence: Prospective Cohort Study

  • Naomi Roselaar
  • Niv Marom
  • Robert G. MarxEmail author
Chapter

Abstract

In the hierarchy used to classify evidence-based research in medicine, level 2 evidence includes prospective cohort studies. A prospective cohort study includes a research question developed prior to patient enrollment. This research design is particularly useful for assessing patient outcomes following a specific treatment or for assessing a specific patient characteristic. Prospective cohort studies may be susceptible to selection bias and low rates of follow-up. Prospective cohort studies can be either controlled or uncontrolled.

Keywords

Evidence Prospective Cohort Therapeutic Prognostic Controlled Uncontrolled 

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Copyright information

© ISAKOS 2019

Authors and Affiliations

  1. 1.Hospital for Special SurgeryNew YorkUSA

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