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Number of Contacts with Presumptive TB

References in the content below refer to the PBMEF Guide.

Definitions

Number of contacts to a person with notified pulmonary TB who have signs or symptoms of TB, as defined by the WHO 4 symptom screen or the NTP (i.e., have presumptive TB).

Presumptive TB: a person who has one or more signs or symptoms of active TB disease and should be referred for diagnostic testing to diagnose or rule out active disease.

Numerator

Number of contacts with presumptive TB

Denominator

N/A
Ref #
DT_CON_PRES
Tier Level
National Level Indicators
Category
Reach
Type
Outcome
Unit of Measure
Number of contacts
Data Type
Integer
Disaggregations
Age (0–4, 5–14, 15+)
Sex
Reporting Level
National Level indicators should be reported at the national level; data may also be reported subnationally or at the project level if national data is not available.
Reporting Frequency
This indicator should be reported on an annual basis at a minimum. More frequent monitoring on a quarterly or monthly basis is recommended.

Data sources may include the TB register, contact investigation (CI) register, laboratory register, and electronic management information systems available at the health facility and district level.

CI will reduce TB incidence and transmission in the community through early identification and treatment of people with active TB disease and identification and initiation of TB preventive treatment (TPT) for people with TB infection (TBI).

This indicator provides data for an important step in the CI cascade and allows users to measure the percent of contacts who are presumptive for active TB. Together with CON_TST and CON_DX, the percent of contacts with presumptive TB who receive diagnostic testing, and the percent who are diagnosed with active TB disease can be monitored over time. These trends are important measures of how well CI programs are functioning by documenting TB case finding yield of Cis.

The number of contacts with presumptive TB can be used to calculate the percent of contacts with presumptive TB by dividing this indicator by the number of contacts who were screened for TB (reported as the numerator in the core indicator on CI). When combined with the number of contacts diagnosed with active TB disease, this indicator can inform programs on the positive diagnostic yield of a CI program.

Example charts/graphs: 

  • CI cascade
  • Trends over time comparisons
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