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Table 3 Prevalence trend of drug resistance among tuberculosis patients in Hangzhou, China, from 2011 to 2015

From: Prevalence and patterns of drug resistance among pulmonary tuberculosis patients in Hangzhou, China

Type of TB resistance Treatment history 2011
(N = 1184)
2015
(N = 1326)
χ2 P
Resistance to any first-line drugs All 371 (31.3) 296 (22.3) 26.0 < 0.01
New cases 211 (23.4) 184 (18.0) 8.3 < 0.01
Treated cases 160 (57.0) 112 (36.6) 24.4 < 0.01
Isoniazid All 231 (19.5) 191 (14.4) 11.7 < 0.01
New cases 103 (11.4) 102 (10.0) 1.0 0.32
Treated cases 128 (45.6) 89 (29.1) 17.1 < 0.01
Rifampin All 201 (17.0) 135 (10.2) 24.9 < 0.01
New cases 82 (9.1) 57 (5.6) 8.7 < 0.01
Treated cases 119 (42.4) 78 (25.5) 18.7 < 0.01
Ethambutol All 60 (5.1) 38 (2.9) 8.1 < 0.01
New cases 13 (1.4) 15 (1.5) 0.0 0.95
Treated cases 47 (16.7) 23 (7.5) 11.8 < 0.01
Streptomycin All 203 (17.2) 177 (13.4) 7.0 < 0.01
New cases 110 (12.2) 119 (11.7) 0.1 0.73
Treated cases 93 (33.1) 58 (19.0) 15.3 < 0.01
Multi-drug resistance (MDR) All 137 (11.6) 106 (8.0) 9.2 < 0.01
New cases 37 (4.1) 38 (3.7) 0.2 0.67
Treated cases 100 (35.6) 68 (22.2) 12.8 < 0.01