RESUMO
Objective To reveal the status quo and emerging issues of co-authorship in regional health informatization research community in China.Methods The terms or keywords describing and covering regional health informatization were used to search the most relevant literatures about the subject in CNKI,Wanfang database and PubMed.Software tools were used to extract bibliographic,Social network analysis (SNA);co-authorship,and co-word analysis were used in this study.Results ①11,482 articles with 16,449 authors in the period of 1984-2013 were found.Each publication has an average of 1.43 authors,and each author has 0.70 publications.The number of coauthored literature was 7741 (67.42 ％).Both production and collaboration have been growing steadily.② Coauthored knowledge network was build which composed by 150 high-yielding Authors.The largest component comprises 43 authors(28％,43/156).The intermediate centrality of 57 authors were above 0.③ 230 2-plexes were found,and 65 2-plexes scale was 4 and over;and there was overlap among them.There were extensive cooperation between the military institutions,a large number of regional health information technology research talent were found in army research institutes..Cohesive subgroups density showed an E-I index=-0.901,which indicated that factionalism was comparatively weaker in this field,and the relationship tended to occur among subgroups.④ Cooperative network was established between the provinces and municipalities.Beijing,Guangdong,Jiangsu,Hubei were the core area.⑤ The average distance between the author=3.155,and it consistent with the small-world characteristics.⑥ The largest component of the network research can be summarized into three categories:HIS-related research,electronic medical records related research,and regional health informatization related research.Conclusions Although such collaboration is growing steadily,the collaboration behavior about regional health informatization study needs to be enhanced.Policy makers and researchers can refer to the relevant information and promote cooperation,improve the capacity of regional health information research and construction.