Relative Citation Ratios of Global Surgery, Obstetrics, Trauma, and Anesthesia: Implications and Lessons for Global Neurosurgery.

BACKGROUND: The National Institutes of Health has developed a new metric, the Relative Citation Ratio (RCR), to assess the impact of research articles and compare academic productivity across different fields. Global surgery, obstetrics, trauma, and anesthesia (SOTA) are young and increasingly popular fields attracting researchers and funding. This study analyzed the RCR of global neurosurgery; compared it with other global SOTA specialties; and discussed the implications for researchers, academic institutions, and aspiring global neurosurgeons. METHODS: Metadata were downloaded from the National Institutes of Health RCR website for 12 established global surgery specialties, including global neurosurgery. The authors performed descriptive and bivariable inferential analyses to evaluate differences in the number of total publications, median number of citations per year, and median RCR for each specialty for which data were available. RESULTS: Global pediatric surgery had the highest median citations per year (2.00, interquartile range: 0.63-3.50; P = 0.048) and median relative citation ratio (1.36, interquartile range: 0.33-1.95; P = 0.693). In comparison, global neurosurgery articles had 0.20 median citations per year (IQR: 0-1.5) and 0.54 (IQR: 0.12-1.30) median relative citations. The median expected citations per year for all SOTA articles was 1.77. CONCLUSIONS: We observed strong development of global neurosurgery and SOTA research. Overall, the use of the RCR will facilitate standardized interfield and intrafield academic productivity comparisons. Based on the results presented in this study, global neurosurgery is a promising career route for young and aspiring academic neurosurgeons.

Retrospective review of Google Trends to gauge the popularity of global surgery worldwide: A cross-sectional study.

INTRODUCTION: Global surgery is a growing movement worldwide, but its expansion has not been quantified. Google Search is the most popular search engine worldwide, and Google Trends analyzes its queries to determine popularity trends. We used Google Trends to analyze the regional and temporal popularity of global surgery (GS). Furthermore, we compared GS with global health (GH) to understand if the two were correlated. METHODS: This is a retrospective cross-sectional study examining Google Trends of GS and GH. We searched the terms "global surgery" and "global health" on Google Trends (Google Inc., CA, USA) from January 2004 to May 2021. We identified time trends and compared the two search terms using SPSS v26 (IBM, WA, USA) to run summary descriptive analyses and Wilcoxon rank-sum tests. RESULTS: The ten countries most interested in GS were India (5.0%), the United Kingdom (5.0%), Ireland (4.0%), the United States (4.0%), Australia (3.0%), Canada (3.0%), New Zealand (3.0%), Germany (2.0%), South Africa (2.0%), and Nigeria (1.0%). GS became more popular after 2015 (2.3% vs. 1.3%, P < 0.001) and was consistently less popular than GH (1.6% vs. 45.3%, P = 0.04). The difference between GS and GH interest levels increased after 2015 (45.4% vs. 42.9%, P = 0.04). CONCLUSION: GS is less popular than GH, more popular in high-income countries, and has become more popular after 2015 when the Lancet Commission on Global Surgery published its seminal report. The World Health Organization passed resolution WHA 68.15. Future advocacy efforts should target low- and middle-income countries primarily.