Comparing the Attention Score Between American and European Cardiology Guidelines.

Introduction: The American College of Cardiology (ACC) in USA and the European Society of Cardiology (ESC) in Europe have issued around 25 practice cardiology guidelines since 2008. The attention and impact of these guidelines have not been investigated yet.

Aim: In this study, we aim to compare the attention brought up by ACC and ESC guidelines.

Methods: Guideline documents were defined as documents published by either the ACC or the ESC, where recommendations with a specific level of evidence are clearly indicated. These documents were posted on their respective websites. For each document, we extracted the attention on blogs, news, social media, and other platforms to calculate a total score known as the Altmetric Attention Score (AAS). Then we compared AAS, citations, and other indices between ACC and ESC guideline documents.

Results: A total of 26 US and 24 European cardiology guidelines were released between 2008 and 2018. We found a significant difference in the median AAS between American and European guidelines (p = 0.048). The median AAS for European and for American guidelines were 159 (104.25-392.5) and 79 (24-169.75), respectively. The US Contribution to the AAS was significantly higher than the European in both the European guidelines (p < 0.001, median contribution values were 7.6% vs 3.4%, respectively), and the American guidelines (p = 0.011, median contribution values were 12% vs 7%, respectively).

Conclusion: The attention brought up by the European guideline documents was higher than the American guidelines, although most of the attention in both guidelines was contributed to by USA.