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Review on Impact Factors of Users' Participation Behavior in Online Health Community

��[Purpose/significance] Online health communities (OHC) are important platforms for anyone who cares about health problems to share experiences, knowledge and emotions, and users' participation is key to the development of OHC. A comprehensive review on related impact factors of users' participation behaviors can provide a systematic reference for the research in this field.[Method/process] From the comprehensive perspective of information ecosystem, this paper systematically and thoroughly reviews the primary achievements and research status of the influencing factors and mechanism of users' participation behaviors from four dimensions of information people, information, information technology and information environment.[Result/conclusion] Users' participation behaviors are influenced by information, information people, information technology and information environment. Relevant research results are fruitful and mature research topics have been formed. Finally, this paper looks forward to the future research trends, from dimensions of community types, user types, and continuous participation.