title: [Spatial-temporal distribution of hepatitis B in Gansu province, 2009-2014].
abstract: OBJECTIVE
  To understand the hot/cold spots and the spatial-temporal clustering of hepatitis B in Gansu province during 2009-2014 by using spatial statistics, and provide scientific evidence for the prevention and control of hepatitis B.
  
  
  METHODS
  The spatial hot/cold spots and its trend, and the time frame and areas of its spatial-temporal clustering of hepatitis B in Gansu were analyzed by using the county specific incidence of hepatitis B from 2009 to 2014 and spatial statistical software GeoDa and SatScan.
  
  
  RESULTS
  The incidences of hepatitis B from 2009 to 2014 in Gansu were spatial autocorrelated respectively. Local G scan statistics indicated that the number of hot spots was in decline in Hexi area, while the hot spots was in increase in Linxia Hui autonomous prefecture and Gannan Tibetan autonomous prefecture. There was no obvious pattern in cold spots. Temporal-spatial scan statistics showed that the areas with high hepatitis B incidence most likely clustered in Hexi area during 2009-2011, and the areas with low hepatitis B incidence most likely clustered in eastern Gansu during 2012-2014.
  
  
  CONCLUSIONS
  The spatial and temporal clustering of hepatitis B was observed in Gansu from 2009 to 2014. The number of hot spots in Hexi area was in decline, while the numbers of hot spots in Linxia and Gannan were in increase, suggesting that the hepatitis B control and prevention in these areas should be strengthened.
authors.affiliation: Department of Acute Infectious Diseases Control and Prevention, Institute for Communicable Disease Control and Prevention, Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China.
authors.forename: Faxiang
authors.initials: F
authors.lastname: Gou
authors.affiliation: Department of Acute Infectious Diseases Control and Prevention, Institute for Communicable Disease Control and Prevention, Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China.
authors.forename: Xinfeng
authors.initials: X
authors.lastname: Liu
authors.affiliation: Department of Acute Infectious Diseases Control and Prevention, Institute for Communicable Disease Control and Prevention, Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China.
authors.forename: Dongpeng
authors.initials: D
authors.lastname: Liu
authors.affiliation: Institute of Epidemiology and Health Statistics, School of Public Health, Lanzhou University, Lanzhou 730000, China.
authors.forename: Xiaowei
authors.initials: X
authors.lastname: Ren
authors.affiliation: Institute of Epidemiology and Health Statistics, School of Public Health, Lanzhou University, Lanzhou 730000, China.
authors.forename: Juansheng
authors.initials: J
authors.lastname: Li
authors.affiliation: Department of Acute Infectious Diseases Control and Prevention, Institute for Communicable Disease Control and Prevention, Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China.
authors.forename: Haixia
authors.initials: H
authors.lastname: Liu
authors.affiliation: Department of Acute Infectious Diseases Control and Prevention, Institute for Communicable Disease Control and Prevention, Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China.
authors.forename: Yunhe
authors.initials: Y
authors.lastname: Zheng
authors.affiliation: Department of Acute Infectious Diseases Control and Prevention, Institute for Communicable Disease Control and Prevention, Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China.
authors.forename: Kongfu
authors.initials: K
authors.lastname: Wei
authors.affiliation: Department of Acute Infectious Diseases Control and Prevention, Institute for Communicable Disease Control and Prevention, Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China.
authors.forename: Xiaoting
authors.initials: X
authors.lastname: Yang
authors.affiliation: Department of Acute Infectious Diseases Control and Prevention, Institute for Communicable Disease Control and Prevention, Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China.
authors.forename: Yao
authors.initials: Y
authors.lastname: Cheng
authors.affiliation: Department of Acute Infectious Diseases Control and Prevention, Institute for Communicable Disease Control and Prevention, Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Meng
mesh_terms: D002681:China / Q000453:epidemiology; D016000:Cluster Analysis; D062665:Epidemiological Monitoring; D006509:Hepatitis B / Q000453:epidemiology*; D006801:Humans; D015994:Incidence; D012984:Software; D062211:Spatio-Temporal Analysis