Epidemiological Scenario of Leprosy in a Province in China: Long Delay in Diagnosis and High Rate of Deformity. Ge Li Shaanxi Provincial Institute for Endemic Disease Control Qing-Ping Zhang Shaanxi Provincial Institute for Endemic Disease Control Zhao-Xing Lin Shaanxi Provincial Institute for Endemic Disease Control Ping Chen Shaanxi Provincial Institute for Endemic Disease Control Chao Li (
[email protected] ) Fourth Military Medical University https://orcid.org/0000-0002-6175-5701 Research article Keywords: Leprosy, Mycobacterium leprae, China, Epidemiology Posted Date: June 24th, 2020 DOI: https://doi.org/10.21203/rs.3.rs-34383/v1 License: This work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License Version of Record: A version of this preprint was published on November 25th, 2020. See the published version at https://doi.org/10.1186/s12889-020-09933-6. Page 1/11 Abstract Background: This ecological study aimed to analyze both the tendency and the characteristics of leprosy in an endemic province in the Chinese Northwest. Methods: The medical records of leprosy in the province of Shaanxi, China, 1998-2018 were collected from the leprosy management information system in China (LEPMIS). Epidemiological variables were analyzed in this study. Results: 477 new cases were diagnosed between 1998-2018 in this area. The average rate of annual detection was 0.070/100,000, and the average annual prevalence was 0.305/100,000. The mean age of new patients was 46.71 years, and the ratio of male to female was 2.46:1. There were 399 cases (83.6%) of multibacillary (MB) forms.