Real world data (RWD) and real world evidence (RWE) have increasingly received wide attention. Patient registry study is an important part of real-world studies using observational design. In this paper, we introduce the concept, classification and application of patient registries, and discuss the planning for a patient registry study and development of registry database, and provide methodological guidance for developing high-quality patient registry studies.
ObjectiveTo investigate the effects of single-disease quota payment in Chengdu.MethodsThe data of medical insurance in Chengdu from 2009 to 2013 were used to compare changes of average hospitalization expenses, hospitalization days, re-admission rate and so on by establishing a difference-in-difference (DID) model.ResultsThe quota payment policy effectively controlled the overall medical expenses. Drug fee and examination fee were significantly affected (P<0.01). However, the re-admission rate was significantly improved (P<0.10).ConclusionThe implementation of single-disease quota payment in Chengdu controlled the medical expanses growth effectively, but it is necessary to prevent its side effects.