From: How can gastro-intestinal tuberculosis diagnosis be improved? A prospective cohort study
N tests | Sensitivity % | Specificity % | PPV % | NPV % | |
---|---|---|---|---|---|
GeneXpert® | 57 | 95.7 | 100 | 100 | 97.1 |
Culture | 42 | 35.0 | 100 | 100 | 62.9 |
PCR | 29 | 50.0 | 100 | 100 | 68.2 |
AFB | 55 | 31.0 | 100 | 100 | 56.5 |
Histology a | 60 | 68.0 | 77.1 | 68.0 | 77.1 |
Histology b | 60 | 36.0 | 85.7 | 64.3 | 65.2 |