Skip to main content

Table 3 Child-level analyses of Mtb stool assay in 259 children

From: Detection of Mycobacterium tuberculosis in pediatric stool samples using TruTip technology

   Positive stool result (n/N) Sensitivity (95% CIa) Specificity (95% CI)
First sample All children 16/259   
Confirmed TB (SM+)b 7/7 100% (59–100%)  
Confirmed TB (SM-) 5/15 33% (13–61%)  
Confirmed TB (all smear grades) 12/22 55% (33–75%)  
Clinically-diagnosed, unconfirmed TB 1/84 1.2% (0.0–6.5%)  
No TB diagnosis 3/153   98% (94–99.5%)
Both samples All children 18/259   
Confirmed TB (SM+) 7/7 100% (59–100%)  
Confirmed TB (SM-) 6/15 40% (16–68%)  
Confirmed TB (all smear grades) 13/22 59% (36–79%)  
Clinically-diagnosed, unconfirmed TB 1/84 1.2% (0.0–6.5%)  
No TB diagnosis 4/153   97% (93–99.3%)
  1. aCI confidence interval, bSM smear