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Mapping the global research landscape and knowledge gaps on multimorbidity: a bibliometric study
Xiaolin Xu1, Gita D Mishra1, Mark Jones1
1Centre for Longitudinal and Life Course Research, School of Public Health, The University of Queensland, Brisbane, Australia.
Journal of Global Health
|July 8, 2017
Summary
Research on multimorbidity lags behind its prevalence, especially in low- and middle-income countries (LMICs). Collaboration between LMICs and high-income countries (HICs) is crucial for advancing global health research.
Area of Science:
- Global Health
- Epidemiology
- Health Research Trends
Background:
- Multimorbidity research is increasing but lags behind disease prevalence.
- Significant disparities exist in research output between high-income countries (HICs) and low- and middle-income countries (LMICs).
Purpose of the Study:
- To summarize global research trends and activities on multimorbidity.
- To identify knowledge gaps and implications for knowledge exchange between HICs and LMICs.
Main Methods:
- Comprehensive literature search (1900-2016) in Web of Science for multimorbidity and related single conditions.
- Co-citation and hierarchical clustering analysis using CiteSpace II, linked with life expectancy and Gross National Income (GNI) data.
Main Results:
- Identified 2864 publications; 80% published after 2010.
- Significant research gap: multimorbidity research output is disproportionately low compared to single conditions (1:13-150 ratio).
- Only 5% of research originated from LMICs, despite these countries accounting for 73% of non-communicable disease deaths. LMICs' first publications appeared 15 years later than HICs', and higher life expectancy correlated with more publications.
Conclusions:
- Substantial knowledge gaps exist in multimorbidity research, particularly in LMICs.
- Urgent input is needed to advance global multimorbidity research, especially in LMICs.
- LMICs can benefit from collaboration and knowledge exchange with HICs.
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