Comparing Tests for Tuberculosis in Children
Author Information
Author(s): Connell Tom G., Ritz Nicole, Paxton Georgia A., Buttery Jim P., Curtis Nigel, Ranganathan Sarath C.
Primary Institution: Department of Paediatrics, University of Melbourne, Royal Children's Hospital Melbourne
Hypothesis
How do the two interferon gamma release assays compare to the tuberculin skin test for diagnosing tuberculosis in children?
Conclusion
The study found high agreement between the two interferon gamma release assays, but they often disagreed with the tuberculin skin test results.
Supporting Evidence
- The study included 100 children, with results available for 96.
- Agreement between the two interferon gamma release assays was high at 93%.
- Children with a TB contact were more likely to have a positive IGRA.
Takeaway
This study looked at different tests to find out if kids have tuberculosis. It found that some tests agree with each other, but sometimes they don't match up with the skin test.
Methodology
The study compared the results of two interferon gamma release assays and the tuberculin skin test in children at risk for tuberculosis.
Potential Biases
Potential laboratory errors could affect the results, particularly with the T-SPOT.TB assay.
Limitations
The study had a small sample size and was conducted at a single center, which may limit the generalizability of the findings.
Participant Demographics
The mean age of participants was 10.2 years, with 85% originating from high TB prevalence countries.
Statistical Information
P-Value
p<0.05
Confidence Interval
0.65–0.91
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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