Osman, Muhammad ORCID: 0000-0003-3818-9729, Welte, Alex, Dunbar, Rory, Brown, Rosemary, Hoddinott, Graeme, Hesseling, Anneke C. and Marx, Florian M. (2019) Morbidity and mortality up to 5 years post tuberculosis treatment in South Africa: a pilot study. International Journal of Infectious Diseases, 85. pp. 57-63. ISSN 1201-9712 (doi:https://doi.org/10.1016/j.ijid.2019.05.024)

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Abstract

Background
A high risk of tuberculosis (TB), chronic lung disease, and mortality have been reported among people with a history of previous TB treatment, but data from high-incidence settings remain limited. The aim of this study was to characterize general morbidity and mortality among adults who had successfully completed TB treatment in the past 5 years in a high-incidence setting in South Africa.
Methods
Adults (≥18 years) who had completed treatment for pulmonary TB between 2013 and 2017 were randomly selected from TB treatment registers. Household visits were conducted to locate and interview former TB (FTB) patients, and bacteriological testing for TB was offered. Additional data sources were used to ascertain the vitality status of FTB patients who could not be located.
Results
Addresses were located for 200 of the 223 FTB patients sampled and 89 FTB patients were contacted of whom 51 agreed to be interviewed. Approximately half reported persistent respiratory symptoms, such as shortness of breath and wheezing, and repeated lung infections. One (3.6%) of 28 patients who provided a sputum sample had culture-positive TB and another two were currently on re-treatment for TB. Fifteen deaths post treatment were ascertained, resulting in a standardized mortality ratio of 3.8 (95% confidence interval 2.3–6.3) after successful TB treatment relative to the general population.
Conclusions
In this high-incidence setting, locating and interviewing FTB patients was challenging. The study findings are consistent with a high rate of respiratory disease, including recurrent TB, and substantially elevated mortality among FTB patients.

Item Type:	Article
Uncontrolled Keywords:	post-tuberculosis
Subjects:	Q Science > QR Microbiology > QR355 Virology R Medicine > RB Pathology
Faculty / School / Research Centre / Research Group:	Faculty of Education, Health & Human Sciences Faculty of Education, Health & Human Sciences > School of Human Sciences (HUM)
Last Modified:	23 Mar 2022 14:42
URI:	http://gala.gre.ac.uk/id/eprint/35551

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