Table 1 Prevalence of M. tuberculosis drug resistance in Venezuela, 1998–1999.
Never treated n(%) | Previously treated cases n(%) | Total n(%) | |
|---|---|---|---|
Total number of cultures | 769 (88) | 104 (12) | 873(100) |
Susceptible to all drugs | 711(92.5) | 72 (69.2) | 783(90) |
Resistant to one or more drugs | 58 (7.5) | 32(30.8) | 90(10.3) |
Resistant to only one drug | 38(4.9) | 12(1.5) | 50(5.7) |
H | 13(1.7) | 6(5.8) | 19(2.1) |
R | 3(0.4) | 3(2.9) | 6(0.6) |
E | 1(0.1) | 0(0.0) | 1(0.1) |
S | 21(2.7) | 3(2.9) | 24(2.7) |
MDR (Multidrug resistance) | 4(0.5) | 14(13.5) | 18(2.1) |
H+R | 2(0.3) | 4(3.8) | 6(0.7) |
H+R+S | 1(0.1) | 5(4.8) | 6(0.6) |
H+R+E | 0(0.0) | 2(1.9) | 2(0.2) |
H+R+E+S | 1(0.1) | 3(2.9) | 4(0.4) |
Other patherns | 16(2.1) | 6(5.8) | 22(2.5) |
H+E | 2(0.3) | 1(1.0) | 3(0.3) |
H+S | 10(1.3) | 3(2.9) | 13(1.5) |
E+S | 2(0.3) | 0(0.0) | 2(0.2) |
R+E | 1(0.1) | 0(0.0) | 1(0.1) |
H+E+S | 1(0.1) | 0(0.0) | 1(0.1) |
R+E+S | 0(0.0) | 2(1.9) | 2(0.2) |