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Table 3 Quantitative data collection: data sources and estimated sample size during the intervention phase

From: Bridging the knowledge-practice gap in tuberculosis contact management in a high-burden setting: a mixed-methods protocol for a multicenter health system strengthening study

Sources of quantitative data

 

 Form type

Name of form

  Individual TB treatment card detailing diagnosis date, adherence and number of contacts

TB01

  Register of all TB patients at a health facility

TB03

  Laboratory register for smear sputum TB examination

TB04

  Register of all people suspected of having TB

TB05

  Form for child TB screening

TB15

  Register of TB contacts at a health facility

TB16

Sample size

 

 Step of management cascade

Estimated sample size at the 5 primary sites in 24 months

  Estimated number of index cases

2000

  Estimated number of contacts

10,000

  Estimated number of contacts reached during the study: 40%

4000

   • Estimated number of contacts found to have co-prevalent active TB: 5%

200

   • Estimated number likely to require TB preventive therapy (15%)

600

    ◦ Estimated number commencing on IPT (60%)

360

    ◦ Estimated number completing IPT (60%)

216

  Estimated number of TB cases prevented through IPT

6