title: The AIDS epidemic and economic input impact factors in Chongqing, China, from 2006 to 2012: a spatial-temporal analysis.
abstract: OBJECTIVE
  To analyse the spatial-temporal clustering of the HIV/AIDS epidemic in Chongqing and to explore its association with the economic indices of AIDS prevention and treatment.
  
  
  METHODS
  Data on the HIV/AIDS epidemic and economic indices of AIDS prevention and treatment were obtained from the annual reports of the Chongqing Municipal Center for Disease Control for 2006-2012. Spatial clustering analysis, temporal-spatial clustering analysis, and spatial regression were used to conduct statistical analysis.
  
  
  RESULTS
  The annual average new HIV infection rate, incidence rate for new AIDS cases, and rate of people living with HIV in Chongqing were 5.97, 2.42 and 28.12 per 100,000, respectively, for 2006-2012. The HIV/AIDS epidemic showed a non-random spatial distribution (Moran's I≥0.310; p<0.05). The epidemic hotspots were distributed in the 15 mid-western counties. The most likely clusters were primarily located in the central region and southwest of Chongqing and occurred in 2010-2012. The regression coefficients of the total amount of special funds allocated to AIDS and to the public awareness unit for the numbers of new HIV cases, new AIDS cases, and people living with HIV were 0.775, 0.976 and 0.816, and -0.188, -0.259 and -0.215 (p<0.002), respectively.
  
  
  CONCLUSIONS
  The Chongqing HIV/AIDS epidemic showed temporal-spatial clustering and was mainly clustered in the mid-western and south-western counties, showing an upward trend over time. The amount of special funds dedicated to AIDS and to the public awareness unit showed positive and negative relationships with HIV/AIDS spatial clustering, respectively.
authors.affiliation: Department of Health Statistics, College of Preventive Medicine, Third Military Medical University, Chongqing, China.
authors.forename: Yanqi
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Department of Health Statistics, College of Preventive Medicine, Third Military Medical University, Chongqing, China.
authors.forename: Qin
authors.initials: Q
authors.lastname: Xiao
authors.affiliation: Department of Health Statistics, College of Preventive Medicine, Third Military Medical University, Chongqing, China.
authors.forename: Liang
authors.initials: L
authors.lastname: Zhou
authors.affiliation: Department of Health Statistics, College of Preventive Medicine, Third Military Medical University, Chongqing, China.
authors.forename: Dihui
authors.initials: D
authors.lastname: Ma
authors.affiliation: Department of Health Statistics, College of Preventive Medicine, Third Military Medical University, Chongqing, China.
authors.forename: Ling
authors.initials: L
authors.lastname: Liu
authors.affiliation: Division for AIDS/STD Control and Prevention, Chongqing Center for Disease Control and Prevention, Chongqing, China.
authors.forename: Rongrong
authors.initials: R
authors.lastname: Lu
authors.affiliation: Department of Health Statistics, College of Preventive Medicine, Third Military Medical University, Chongqing, China.
authors.forename: Dali
authors.initials: D
authors.lastname: Yi
authors.affiliation: Department of Health Statistics, College of Preventive Medicine, Third Military Medical University, Chongqing, China.
authors.forename: Dong
authors.initials: D
authors.lastname: Yi
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000191:economics* / Q000453:epidemiology / Q000517:prevention & control / Q000628:therapy; D002681:China / Q000453:epidemiology; D016000:Cluster Analysis; D058872:Epidemics; D015658:HIV Infections; D017048:Health Care Costs; D006801:Humans; D062211:Spatio-Temporal Analysis; D014481:United States
keywords: HEALTH ECONOMICS; HEALTH SERVICES ADMINISTRATION & MANAGEMENT; STATISTICS & RESEARCH METHODS
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