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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);

Main Article

Table 1

Moran’s I analysis on TB cases in the migrant population and permanent resident population, Beijing, 2000–2006*

Year TB cases among Beijing permanent residents
 TB cases among the migrant population
I statistic z score I statistic z score
2000 –0.46 –1.51 0.17 0.94
2001 –0.43 –1.42 0.11 –0.25
2002 –0.27 –0.82 0.84 3.62†
2003 –0.14 –0.34 0.99 4.24†
2004 –0.34 –1.14 0.13 4.64†
2005 –0.24 –0.72 0.74 3.09†
2006 –0.36 –1.25 0.71 2.91†

*Moran’s I statistics with z score test value to detect the spatial distribution of tuberculosis (TB) in the 2 populations. A statistically significant (z score >1.96) estimate of I indicates that nearby districts (within 10 km) have a similar prevalence rate of TB and the cases are likely to cluster at the district level.
†Statistically significant, p<0.05 as measured by z score >1.96.

Main Article

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