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Table 1 Distribution of drug resistance among phylogenetic clades of the Ural family

From: New epidemic cluster of pre-extensively drug resistant isolates of Mycobacterium tuberculosis Ural family emerging in Eastern Europe

Identifiers Number of strains (n = 149) Susceptible and monoresistant, number (%) Polyresistant, number (%) MDR, number (%) Pre-XDR and XDR, number (%) Pre-XDR and XDR prevalence in Clades C vs A&B, χ2a; p
Out-of-clade strains 27 9 (33.3) 2 (7.4) 16 (59.3) 8 (29.6) 65.3; < 0.0001
Clade A 31 26 (83.9) 2 (6.4) 3 (9.7) 1 (3.2)
Clade B 52 28 (53.9) 10 (19.2) 14 (26.9) 4 (7.7)
Clade C 39 1 (2.6) 0 38 (97.4) 32 (82.1)
  1. aχ2 with Yates correction