Table 1

Performance of Ziehl-Neelsen (ZN), Magnetic bead-FM (fluorescence microscopy) and Concentrated FM compared with culture on MGIT 960 and Lowenstein-Jensen medium

Culture (MGIT + LJ)


Positive

Negative

Total


Direct ZN


Positive

55

2

57


Negative

52

173

225


Total

107

175

282



Magnetic bead FM


Positive

70

20

90


Negative

37

155

192


Total

107

175

282


Concentrated FM


Positive

80

10

89


Negative

27

165

193


Total

107

175

282


Direct FM


Positive

63

1

64


Negative

44

174

218


Total

107

175

282


MGIT, mycobacterial growth indicator tube

LJ, Lowenstein-Jensen medium

FM, fluorescence microscopy

ZN, Ziehl-Neelsen

Albert et al. BMC Infectious Diseases 2011 11:125   doi:10.1186/1471-2334-11-125

Open Data