TB Screening Algorithms
Algorithmic approaches are favoured because initial screening tests can reduce the number of expensive confirmatory tests required. A small reduction in diagnostic accuracy may be acceptable if a decentralised or lower-cost strategy increa…
1 sources - 5 claims
Algorithmic approaches are favoured because initial screening tests can reduce the number of expensive confirmatory tests required. A small reduction in diagnostic accuracy may be acceptable if a decentralised or lower-cost strategy increases overall population-level TB case detection. WHO defines a systematic TB screening algorithm as one or more screening tests followed by a separate diagnostic evaluation for TB disease. The protocol excludes pathways that apply follow-on diagnostic tests after a negative screening result, retaining only positive concurrent and positive sequential algorithms. The protocol pre-selected 20 algorithms for facility-based case finding and 40 for community-based case finding.