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Volume 14, Number 9—September 2008

Research

Spatial Analysis of Tuberculosis Cases in Migrants and Permanent Residents, Beijing, 2000–2006

Zhong-Wei Jia, Xiao-Wei Jia, Yun-Xi LiuComments to Author , Christopher Dye, Feng Chen, Chang-Sheng Chen, Wen-Yi Zhang, Xiao-Wen Li, Wu-Chun CaoComments to Author , and He-Liang LiuComments to Author 
Author affiliations: Capital Medical University, Beijing, People’s Republic of China (PRC) (Z.-W. Jia); State Key Laboratory of Pathogen and Biosecurity, Beijing (Z.-W. Jia, W.-Y. Zhang, W.-C. Cao); Chinese Center for Disease Control and Prevention, Beijing (X.W. Jia); Chinese PLA General Hospital, Beijing (Y.-X. Liu); World Health Organization, Geneva, Switzerland (C. Dye); Nanjing Medical University, Nanjing, PRC (F. Chen); Fourth Military Medical University, Xi’an, PRC (C.-S. Chen, H.-L. Liu); Chinese Academy of Sciences, Beijing (X.-W. Li);

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Table 2

Results from Model 2: differences in prevalence rate of TB among the districts*

Parameter Estimate Standard error χ2 value p value
Level 1
Constant† –8.280 0.096 7378.941 <0.001
Level 2
Error term associated with TB prevalence‡ 0.150 0.056 7.229 0.0071

*TB, tuberculosis.
†In this statistical model, the constant term represents the rate of TB by district.
‡If the error term is statistically significant, it indicates that there are differences in the prevalence rate of TB at the district level (but does not identify which districts are different and the degree of difference).

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