Estimation of tuberculosis incidence at subnational level using three methods to monitor progress towards ending TB in India, 2015–2020

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Selvaraju, S (2022) Estimation of tuberculosis incidence at subnational level using three methods to monitor progress towards ending TB in India, 2015–2020. Estimation of tuberculosis incidence at subnational level using three methods to monitor progress towards ending TB in India, 2015–2020, 12(7) (e060197).

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Abstract

We verified subnational (state/union territory (UT)/ district) claims of achievements in reducing tuberculosis (TB) incidence in 2020 compared with 2015, in India. A community- based survey, analysis of programme data and anti- TB drug sales and utilisation data. National TB Elimination Program and private TB treatment settings in 73 districts that had filed a claim to the Central TB Division of India for progress towards TB- free status. Each district was divided into survey units (SU) and one village/ward was randomly selected from each SU. All household members in the selected village were interviewed. Sputum from participants with a history of anti- TB therapy (ATT), those currently experiencing chest symptoms or on ATT were tested using Xpert/Rif/ TrueNat. The survey continued until 30 Mycobacterium tuberculosis cases were identified in a district. Outcome measures We calculated a direct estimate of TB incidence based on incident cases identified in the survey. We calculated an under- reporting factor by matching these cases within the TB notification system. The TB notification adjusted for this factor was the estimate by the indirect method. We also calculated TB incidence from drug sale data in the private sector and drug utilisation data in the public sector. We compared the three estimates of TB incidence in 2020 with TB incidence in 2015.

Affiliation: ICMR-National Institute for Research in Tuberculosis
Item Type: Article
URI: http://eprints.nirt.res.in/id/eprint/2272

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