[Skip to Content]
Access to paid content on this site is currently suspended due to excessive activity being detected from your IP address Please contact the publisher to request reinstatement.
[Skip to Content Landing]
Citations 0
August 13, 2003

Comparison Between Impact Factors and Citations in Evidence-Based Practice Guidelines

Author Affiliations

Letters Section Editor: Stephen J. Lurie, MD, PhD, Senior Editor.

JAMA. 2003;290(6):755-756. doi:10.1001/jama.290.6.755-a

To the Editor: Impact factors of medical journals are calculated as the total number of current citations of articles published in a journal during the previous 2 calendar years divided by the total number of designated articles published in that journal during the same period.1 Thus, impact factors indicate the annual average number of citations of articles that have appeared in a given journal.