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Table 3 Diagnostic accuracy of the five tests for diagnosing intracranial tuberculosis and other brain diseases

From: Nanopore-targeted sequencing (NTS) for intracranial tuberculosis: a promising and reliable approach

Test

Meningeal

Brain parenchymal

Mixed

Overall

χ2

P-value

χ2

P-value

χ2

P-value

χ2

P-value

NTS

0.408

0.523

0.724

0.439

0.299

0.675

1.375

0.241

Xpert MTB/RIF

20.287

< 0.001

15.242

0.002

2.933

0.143

37.937

< 0.001

MTB culture

20.287

< 0.001

11.215

0.007

17.371

0.002

48.207

< 0.001

PCR

20.287

< 0.001

15.242

0.002

17.371

0.002

51.549

< 0.001

AFB smear

23.077

< 0.001

15.242

0.002

17.371

0.002

55.217

< 0.001