Mortality among persons with tuberculosis in Zambian hospitals

A retrospective cohort study

Datos Bibliográficos

ID19592708
AutoresJosphat Bwembya (0000-0002-6971-6571, Zambart, autor de correspondencia), Ramya Kumar (0000-0001-9555-4927, Zambart, autor de correspondencia), Victoria Musonda (0000-0003-0962-0452, National HIV/AIDS/STI/TB Council, autor de correspondencia), Rhehab Chimzizi (Ministry of Health, autor de correspondencia), Nancy Kasese-Chanda (autor de correspondencia), Lameck Goma (National HIV/AIDS/STI/TB Council, autor de correspondencia), Mushota Kabaso (0009-0003-7466-7393, Ministry of Health, autor de correspondencia), Reford Mihova (0000-0003-4320-4399, National HIV/AIDS/STI/TB Council, autor de correspondencia), Sulani Nyimbili (0000-0002-7202-4971, Ministry of Health, autor de correspondencia), Vimbai Makwambeni (National HIV/AIDS/STI/TB Council, autor de correspondencia), Soka Nyirenda (Ministry of Health, autor de correspondencia), Alwyn Mwinga (0000-0003-3723-0064, Zambart, autor de correspondencia), Patrick Lungu (0000-0002-6349-1885, Ministry of Health, autor de correspondencia)
EditoresMaría Elvira Balcells
Año2024
Volumen4
Número6
Páginase0003329
Fecha de publicación2024-06-17
Peer ReviewedSí
Open AccessSí
TipoARTICLE
RevistaPLOS Global Public Health (JOURNAL)
Identificadores de la revistaISSN: 2767-3375 • E-ISSN: 2767-3375
EditorialPublic Library of Science (PLoS) (PUBLISHER)
DOI10.1371/journal.pgph.0003329
PMID38885238
OpenAlexW4399728638
IdiomaEN
Referencias citadas15

Tuberculosis (TB) mortality in Zambia remains high at 86 per 100,000 populations, translating to approximately 15,000 TB-related deaths annually. We conducted a nationwide retrospective cohort study to understand predictors, time to death, and probable causes of mortality among persons on TB treatment in Zambia. We reviewed medical records for persons with TB registered in 54 purposively selected hospitals in Zambia between January and December 2019. We fitted a Cox proportional hazards model to identify predictors of mortality. Of the 13,220 records abstracted, 10,987 were analyzed after excluding records of persons who transferred in from other hospitals, those with inconsistent dates and those whose treatment outcome was not evaluated. The majority of persons with TB were men, (61.5%, n = 6,761) with a median age of 36 years (IQR: 27–46 years). Overall, 1,063 (9.7%) died before completing TB treatment (incidence rate = 16.9 deaths per 1,000 person-months). Median age at death was 40 years (IQR: 31–52). The majority of deaths (75.7%, n = 799) occurred in the first two months of TB treatment, with a median time to death of 21 days (IQR: 6–57). Independent risk factors for TB mortality included age >54 years, being treated in Eastern, Southern, Western, Muchinga and Central provinces, receiving treatment from a third-level or mission hospital, methods of diagnosis other than Xpert MTB/RIF, extrapulmonary TB (EPTB), and positive HIV status. Probable causes of death were septic shock (18.8%), TB Immune Reconstitution Inflammatory Syndrome (TB IRIS) (17.8%), end-organ damage (13.4%), pulmonary TB (11.4%), anemia (9.6%) and TB meningitis (7.8%). These results show high mortality among people undergoing TB treatment in Zambia. Interventions targeted at persons most at risk such as the elderly, those with EPTB, and those living with HIV, can help reduce TB-related mortalities in Zambia

Cause of death · Cohort · Disease · Medical record · Mortality rate · Retrospective cohort study · Tuberculosis · Demography · Diagnosis and treatment of tuberculosis · Medicine · Pneumonia and Respiratory Infections · Tuberculosis Research and Epidemiology · Internal Medicine · Pediatrics