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. 2021 Mar 25;7(3):e06573.
doi: 10.1016/j.heliyon.2021.e06573. eCollection 2021 Mar.

The trend of tuberculosis case notification and predictors of unsuccessful treatment outcomes in Samdrup Jongkhar district, Bhutan: A fourteen-year retrospective study

Kinley Penjor  1   2 , Kuenzang  1 , Tshokey Tshokey  3 , Kinley Wangdi  4
Affiliations

The trend of tuberculosis case notification and predictors of unsuccessful treatment outcomes in Samdrup Jongkhar district, Bhutan: A fourteen-year retrospective study

Kinley Penjor et al. Heliyon. .

Abstract

Tuberculosis (TB) continues to be an important public health issue in Bhutan. This study aims to describe the trend of tuberculosis and investigate factors associated with a unsuccessful treatment outcome in Samdrup Jongkhar District in Bhutan. A fourteen-year (2004-2017) case records in two TB centres of Dewathang and Samdrup Jongkhar Hospitals were reviewed and analyzed to examine trends in case notification and treatment outcomes. Univariable and multivariable logistic regression analysis was undertaken to identify covariates of unsuccessful TB treatment. Of the total of 820 TB cases registered in surveillance record, 729 cases were analysed. Males made up 53.8% (397) of total cases and the median age was 29 years (range: 2-87 years). A gradual downward trend in TB case notification was noticed in the district with overall case notification rate of 139/100,000 during the study period. The annual treatment success rate was over 90% except for years 2013-2015 with overall treatment success rate for the study period at 93%. A re-treatment TB patient, sputum-positive at the second month of treatment and being of Indian nationality were significant correlates of unsuccessful treatment outcomes. The overall TB inclidence has declined and TB treatment success rate was above WHO recommended 90% in Samdrup Jongkhar District during the study period. A special attention should be paid to the poor treatment outcome predictors including re-treatment cases and failed sputum conversion at the second month of treatment.

Keywords: Bhutan; Infection; Modelling; Risk factors; Tuberculosis.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Map of Bhutan showing the study area in Samdrup Jongkhar district. (DMH- Dewathang Military Hospital, SJ- Samdrup Jongkhar).
Figure 2
Figure 2
The trend of TB notification rate from 2004 to 2017.
Figure 3
Figure 3
The trend of annual TB treatment success rate from 2004 to 2017.
See this image and copyright information in PMC

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