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Table 2 Drug resistance patterns of M.tuberculosis strains isolated from newly diagnosed and previously treated pulmonary TB patients attending two public hospitals in East Gojjam zone, northwest Ethiopia

From: Prevalence and drug resistance profile of Mycobacterium tuberculosis isolated from pulmonary tuberculosis patients attending two public hospitals in East Gojjam zone, northwest Ethiopia

Drug resistance pattern Isolates from new cases, n (%) Isolates from previously treated cases, n (%) Total, n (%) 95 % CI
  77 (86.5) 12 (13.5) 89 (100.0)  
Any resistance
Resistance to any drug 12 (15.58) 6 (50.0) 18 (20.23) 11.86-28.54
Any INH 2 (2.59) 4 (33.33) 6 (6.74) 1.51-11.89
Any RIF 3 (3.89) 2 (16.67) 5 (5.62) 0.82-10.38
Any EMB 4 (5.19) 2 (16.67) 6 (6.74) 1.51-11.89
Any STM 4 (5.19) 3 (25.0) 7 (7.87) 2.3-13.52
Mono resistance
INH alone 0 1 (8.3) 1 (1.12) 0.0-3.27
RIF alone 2 (2.59) 0 2 (2.24) 0.0-5.25
EMB alone 4 (5.19) 1 (8.33) 5 (5.62) 0.82-10.38
STM alone 3 (3.89) 0 3 (3.37) 0.0-7.14
Resistance to more than one drug
INH + RIF only (MDR) 1 (1.29) 1 (8.33) 2 (2.24) 0.0-5.25
INH + RIF + EMB + STM only 0 1 (8.33) 1 (1.12) 0.0-3.27
INH + STM only 0 2 (16.67) 2 (2.24) 0.0-5.25
  1. CI, confidence interval; TB, tuberculosis; INH, isoniazid; STM, streptomycin; RIF, rifampicin; EMB, ethambutol