Table 5

Comparison of first-line resistance levels in Beijing compared to non-Beijing strains (n = 709^)

Drug
Beijing strain (n = 361)
Non-Beijing strain (n = 348)
OR (95%CI)
RR (95%CI)
RD (95%CI)






N resistant
% resistant (95%CI)
N resistant
% resistant (95%CI)




Isoniazid*
170
47.1 (48.0–52.3)
53
15.2 (11.7–19.3)
5.0 (3.5–7.1)
3.1 (2.4–4.1)
31.9 (25.2–38.5)
Rifampicin*
140
38.8 (33.9–43.9)
41
11.8 (8.7–15.5)
4.7 (3.2–7.0)
3.3 (2.4–4.5)
27.0 (20.7–33.3)
MDR TB*
127
35.2 (30.4–40.2)
33
9.5 (6.7–12.9)
5.2 (3.4–7.9)
3.7 (2.6–5.3)
25.7 (19.6–31.8)
Streptomycin*
144
39.9 (34.9–45.0)
45
12.9 (9.7–16.8)
4.5 (3.1–6.5)
3.1 (2.3–4.2)
27.0 (20.5–33.4)
Ethambutol*
89
24.7 (20.4–29.3)
26
7.5 (5.0–10.6)
4.1 (2.5–6.5)
3.3 (2.2–5.0)
17.2 (11.7–22.)

* statistically significant difference at p < 0.001

^ both epidemiological and drug resistance results were available for 709/1042 (68.0%) cultures; 31 cultures were non viable or contaminated; cultures were drawn from all dispensaries and prison facilities in Samara City.

Balabanova et al. Respiratory Research 2006 7:44   doi:10.1186/1465-9921-7-44