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Table 2 First line anti-tuberculosis drug resistance in new and previously treated patients

From: Prevalence of multidrug resistance in Mycobacterium tuberculosis isolates from HIV seropositive and seronegative patients with pulmonary tuberculosis in north India

Total number of specimens = 2100

Previous anti-TB treatment status

New

Previously treated

Total

N

% (95% CI)

N

% (95% CI)

N

% (95% CI)

Total DST results

121

5.8

98

4.7

219

10.4

I

Any resistance to H

32

26.4 (19.4–35.4)

46

46.9 (37.1–56.8)

78

35.6 (29.3–42.0)

Any resistance to R

12

9.9 (5.8–16.5)

27

27.6 (18.7–36.4)

39

17.8 (12.7–22.9)

Any resistance to E

18

14.9 (9.6–22.3)

33

33.7 (24.3–43.0)

51

23.3 (17.7–28.9)

Any resistance to S

34

28.1 (20.9–36.7)

34

34.7 (25.3–44.1)

68

31.1 (24.9–37.2)

II

Resistance to H only

10

8.3 (4.7–15.3)

14

14.3 (7.1–20.9)

24

10.9 (6.8–15.1)

Resistance to R only

0

0 (0–0)

0

0 (0–0)

0

0 (0–0)

Resistance to E only

0

0 (0–0)

7

7.1 (1.9–12.1)

7

3.1 (0.9–5.5)

Resistance to S only

15

12.4 (8.6–21.4)

11

11.2 (4.8–17.2)

26

11.9 (7.6–16.2)

Total mono-resistance

25

20.7 (13.4–27.9)

32

32.6 (23.4–41.9)

57

26.02 (20.2-31.9)

III

H + R

1

0.8 (−0.8–2.8)

6

6.1 (1.3–10.7)

7

3.1 (0.9–5.5)

H + R + E

3

2.5 (0.04–6.04)

7

7.1 (1.9–12.1)

10

4.5 (1.8–7.3)

H + R + S

3

2.5 (0.04–6.04)

5

5.1 (0.7–9.3)

8

3.7 (1.2–6.2)

H + R + E + S

5

4.1 (1.1–8.9)

9

9.2 (3.3–14.7)

14

6.4 (3.2–9.6)

Total MDR

12

9.9 (4.6–15.2)

27

27.6 (18.7–36.4)

39

17.8 (12.7–22.9)

IV

H + E

4

3.3 (0.5–7.5)

3

3.1 (−0.4–6.4)

7

3.1 (0.9–5.5)

 

H + S

5

4.1 (1.1–8.9)

2

2.04 (−0.8–4.8)

7

3.1 (0.9–5.5)

 

H + E + S

1

0.8 (0.8–2.8)

3

3.1 (−0.4–6.4)

4

1.8 (0.1–3.6)

 

R + E

0

0 (0–0)

0

0 (0–0)

0

0 (0–0)

 

R + S

0

0 (0–0)

0

0 (0–0)

0

0 (0–0)

 

R + E + S

0

0 (0–0)

0

0 (0–0)

0

0 (0–0)

 

E + S

5

4.1 (1.1–8.9)

4

4.1 (0.12–7.9)

9

4.1 (1.5–6.7)

Total poly-resistance other than MDR

15

12.4 (6.8–18.3)

12

12.2 (5.8–18.7)

27

12.3 (8.0–16.7)

  1. CI – confidence interval, DST – drug susceptibility testing, E – ethambutol, H – isoniazid, R – rifampicin, S – streptomycin.