Abstract 16150: Global Cardiovascular Research Output, Citations, and Collaborations: An Ecologic, Time-Trend, Bibliometric Analysis (1999-2008)
Background: Health research aims to improve population health and should generally match populations’ health needs. However, there have been limited data to assess national-level cardiovascular (CV) research output trends, even as cardiovascular disease (CVD) has become the leading cause of death and disability worldwide.
Objective: To evaluate trends in global CV research publications, citations, and international collaboration from 1999-2008.
Methods: We performed an ecologic, time trends analysis of CV research publications from Web of Knowledge using an iteratively-tested CV bibliometric filter with >90% precision and recall. Outcome measures included CV research publications, 5-year running actual citation indices (ACIs), and international collaboration measured through ratios of fractional counts of addresses from one country against all addresses for each publication.
Results: CV publications by integer count increased from 40,661 (1999) to 55,284 (2008) publications (36% increase; beta coefficient [95%CI]=0.06 [0.02, 0.10] per year). The proportion of CV publications from high-income countries declined from 93% to 84% of the total share from 1999-2008. Median ACIs (IQR) increased across all income groups except in upper middle income countries, ranging from 0 (0, 12.5) in low-income countries (1999) to 18.4 (9.1, 55.3) in high-income countries (2007). High-income countries generally had higher fractional counts over the study period, suggesting less relative international collaboration. We found an inverse relationship between CV publications and CVD morbidity and mortality rates but a direct, curvilinear relationship between CV publications and Human Development Index (Figure).
Conclusions: CV health research output has increased substantially in the past decade with a greater share of citations being published from low- and middle-income countries. Development is more closely associated with CV research output than disease burden.
- © 2013 by American Heart Association, Inc.