A Bibliometric Analysis of Systematic Reviews in the Field of Ankylosing Spondylitis from 2007 to 2025.

Abstract

BACKGROUND: Ankylosing spondylitis (AS) is an inflammatory autoimmune disease and the most common clinical form of spinal arthritis. Over the past decades, tremendous progress has been made in systematic reviews on AS. This study aimed to conduct a bibliometric analysis of AS-related meta-analyses to visualize the hotspots and trends in the field. METHODS: A comprehensive search was conducted for publications of AS meta-analysis from 2007 to 2025 using the Web of Science Core Collection database. Bibliometric analysis was performed using the Bibliometrix software package, VOSviewer, and CiteSpace. RESULTS: In total, 1073 articles were identified, and the number of relevant publications showed annual growth. China, the USA, and England were the most productive countries. Annals of the Rheumatic Diseases was the most productive journal (54, 10.65%), Pan Faming was the most productive author (23, 4.54%), and Anhui Medical University (45, 8.88%) was the most productive institution. High-frequency keywords were mainly grouped into five themes: complications, biologics, physical therapy exercises, gut microbiota, and analytical methods. DISCUSSION: This first bibliometric analysis of AS-related EBM research showed a 20-year upward trend in AS meta-analyses, consistent with prior studies. CiteSpace revealed that China (top since 2014) and the USA led in publications (53 countries) but had limited collaboration. Pan Faming (23 articles) was the most active author, and Annals of the Rheumatic Diseases published the most articles. Keyword analysis identified five themes (e.g., AS complications, biologics) and research frontiers: pre-2012 genome-AS links, post-2012 multi-center RCTs, and the recent focus on AS patients' HRQoL. Limitations included database and English-language bias; future meta-analyses should adopt standardized outcomes. CONCLUSION: In recent years, there has been a remarkable surge in the number of meta-analyses on AS. This significant increase underscores the importance of this research area. Studies in this field have mainly focused on several key aspects: risk factors, network meta-analysis, and quality- of-life studies. These findings are highly valuable for understanding advancements in ASrelated research and can also encourage researchers and clinicians to focus on both effective medical treatments and the well-being of AS patients.