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Table 1 Comparison of various direct and the indirect BACTEC 460 susceptibility methods according to AFB smear grade.

From: Comparison of rapid tests for detection of rifampicin-resistant Mycobacterium tuberculosis in Kampala, Uganda

Smear

Grade

Direct BACTEC

(n = 39)

Direct E-test

(n = 44)

Direct phage

(n = 77)

Direct LiPA

(n = 43)

 

No. Tested

Direct Available

Indirect Available

No. Tested

Direct Available

Indirect Available

No. Tested

Direct Available

Indirect Available

No. Tested

Direct Available

Indirect Available

1+

3

1

(33%)

1

(33%)

2

0

1

(50%)

2

0

(0%)

1

(50%)

10

7

(70%)

2

(20%)

2+

6

6

(100%)

6

(100%)

4

4

(100%)

4

(100%)

9

4

(44%)

6

(67%)

4

3

(75%)

3

(75%)

3+

7

5

(71%)

7

(100%)

17

15

(88%)

16

(45%)

19

14

(74%)

18

(95%)

7

7

(100%)

7

(100%)

4+

23

22

(96%)

23

(100%)

21

20

(95%)

21

(100%)

47

38

(81%)

47

(100%)

22

20

(91%)

21

(95%)

TOTAL

39

34

(87%)

37

(95%)

44

39

(89%)

42

(96%)

77

56

(73%)

74

(96%)

43

37

(86%)

33

(77%)