Table 4 Diagnostic performance of Truenat with Microbiological reference standard (MRS).
From: Expedited diagnosis of pediatric tuberculosis using Truenat MTB-Rif Dx and GeneXpert MTB/RIF
Truenat | AFB smear orMGITor GeneXpert Pos | AFB smear & MGIT &GeneXpert Neg | Total |
|---|---|---|---|
Pos | 72 | 39 | 111 |
Neg | 54 | 447 | 501 |
126 | 486 | 612 | |
Sensitivity | 57.1 (48, 65.9) | ||
Specificity | 92 (89.2, 94.2) | ||
Positive predictive value | 64.9 (55.2, 73.7) | ||
Negative predictive value | 89.2 (86.2, 91.8) | ||
Positive likelihood ratio | 7.12 (5.08, 9.97) | ||
Negative likelihood ratio | 0.46 (0.38, 0.57) | ||
