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Table 2 Comparison of clustered and individual strains between the Beijing and non-Beijing family

From: Characterization of Mycobacterium tuberculosis strains in Beijing, China: drug susceptibility phenotypes and Beijing genotype family transmission

Genotyping Genotype Beijing family(n = 990) Non-Beijing family(n = 199) p value
Spoligotyping Individual strains, n 10 58  
Clustered strains, n 980 141 < 0.001
Clusters, n 11 22  
Clustering rate, % 98.9 70.8  
VNTR Individual strains, n 765 181  
Clustered strains, n 225 18 < 0.001
Clusters, n 68 8  
Clustering rate, % 22.7 9  
  1. (p < 0.05 represents a statistically significant difference)