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Table 3 Significant high risk clusters of demographic and behavioral characteristics of MMT clients in Guangxi

From: Spatial distribution of HIV, HCV, and co-infections among drug users in the southwestern border areas of China (2004–2014): a cohort study of a national methadone maintenance treatment program

Characteristic Moran’s I ± SD expected I = −0.0161 P value for clustering No. of counties/cities Radius (km2) Relative risk
Being unmarried 0.2002 ± 0.0024 <0.001 5 7.50 1.38
   3 6.77 1.21
Primary level education or below 0.1167 ± 0.0024 0.007 4 7.40 1.43
   2 6.77 1.48
Having used drugs for more than 10 years 0.0979 ± 0.0024 0.020 3 7.93 1.63
   3 7.56 1.69
Receptive sharing of syringes with others 0.1091 ± 0.0024 0.010 6 8.03 1.62
   4 7.73 1.34
   3 7.34 1.74
   1 0.00 1.99