›› 2013, Vol. 33 ›› Issue (4): 489-.doi: 10.3969/j.issn.1674-8115.2013.04.023

• Original article (Preventive medicine) • Previous Articles     Next Articles

Analysis of spatial distribution and influencing factors of tuberculosis in Chongqing from 2008 to 2011

WU Tian-yong1, ZENG Qing1, LIU Shi-wei2, ZHAO Han3, YI Juan3, LI Qin3, XIA Yu3   

  1. 1.Department of Biostatistics, School of Public Health, Chongqing Medical University, Chongqing 400016, China； 2.Chinese Center for Disease Control and Prevention, Beijing 102200, China； 3.Chongqing Center for Disease Control and Prevention, Chongqing 400042, China
  • Online:2013-04-28 Published:2013-05-03
  • Supported by:

    Science and Technology Foundation of Chongqing Municipal Health Bureau, 2011-2-583

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Abstract:

Objective To analyze the spatial distribution and influencing factors of tuberculosis in Chongqing using spatial autocorrelation analysis and spatial autoregressive model. Methods The data on tuberculosis of 40 districts (counties) in Chongqing from December 2008 December to 2011 were collected, and spatial autocorrelation analysis and spatial regressive analysis were performed using GeoDa_0.9.5.i software. Results The global Moran´sⅠ values of tuberculosis in Chongqing from 2008 to 2011 were 0.310, 0.399, 0.327, and 0.306, respectively, which indicated that there was a spatial positive correlation among each year in the incidences of tuberculosis in Chongqing. Spatial regressive analysis revealed that the incidence of tuberculosis in Chongqing was associated with the unemployment rate of urban area (Z=2.150, P=0.032). Conclusion The spatial clusterings of tuberculosis are found in Chongqing from 2008 to 2011, and the incidence of tuberculosis in Chongqing is associated with the unemployment rate of urban area at the spatial level.

Key words: tuberculosis, spatial distribution of disease, Moran´sⅠtest, spatial autocorrelation, spatial autoregressive model