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Table 2 The relationship between drug resistance and clustering of the clinical isolates in Hanoi

From: Clonal expansion of Mycobacterium tuberculosis isolates and coexisting drug resistance in patients newly diagnosed with pulmonary tuberculosis in Hanoi, Vietnam

Resistant to

MTB isolates

P value*

Clustered

Non-clustered

N = 146

N = 171

INH (0.2 μg/mL)

55 (37.7%)

34 (19.9%)

0.0004

INH (1.0 μg/mL)

49 (33.6%)

29 (17.0%)

0.0006

RMP

13 (8.9%)

6 (3.5%)

0.0437

SM

49 (33.6%)

41 (24.0%)

0.0592

EMB

7 (4.8%)

4 (2.3%)

0.2338

  1. *P values by chi-square test. P < 0.01 was regarded as statistically significant after considering multiple comparisons.