Abstract
The burden of extrapulmonary tuberculosis (EPTB) has gradually increased in recent years, but not enough epidemiological data is available from central Guangxi. To better understand the epidemiology of EPTB in central Guangxi and identify risk factors associated with them, we retrospectively investigated the epidemiology of tuberculosis (TB), especially EPTB, among patients admitted to the Chest Hospital of Guangxi Zhuang Autonomous Region between 2016 and 2021. We excluded those infected with both pulmonary tuberculosis (PTB) and EPTB, reported the proportion and incidence of PTB or EPTB, and compared the demographic characteristics and risk factors of EPTB and PTB cases using univariate and multivariate logistic regression models. Among 30,893 TB patients, 67.25% (20,774) had PTB and 32.75% (10,119) had EPTB. Among EPTB, pleural, skeletal, lymphatic, pericardial, meningeal, genitourinary, intestinal, and peritoneal TB accounted for 49.44%, 27.20%, 8.55%, 4.39%, 3.36%, 1.48%, 0.87%, and 0.79%, respectively. Patients who were younger (age < 25), from rural areas, Zhuang and other ethnic groups, and diagnosed with anemia and HIV infection were more likely to develop EPTB. However, patients with diabetes and COPD were less likely to have EPTB. From 2016 to 2021, the proportion of PTB cases decreased from 69.73 to 64.07%. The percentage of EPTB cases increased from 30.27 to 35.93%, with the largest increase in skeletal TB from 21.48 to 34.13%. The epidemiology and risk factors of EPTB in central Guangxi are different from those of PTB. The incidence of EPTB is increasing and further studies are needed to determine the reasons for it.
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Data availability
The datasets generated and/or analyzed during the current study are not publicly available because of ethical and legal reasons but are available from the corresponding author Jing Leng on reasonable request.
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Acknowledgements
We thank Peng Zhang for his help in data processing techniques. Thanks to all participants of this study and Guangxi Chest Hospital for their support.
Funding
This research was supported by Guangxi Key Research and Development Program (Nos. GuikeAB20072005 and GuikeAB22035027). Jing Leng and Yanling Hu were received research grants from these two funds, respectively.
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All authors contributed to study conception and design. Y.L.H, J.L, J.N.L, Y.Z.W, A.M.L: designed the study and provided the correlative knowledge. D.W, L.S.S, Q.Y.L, and K.L: collected and provided the data. L.X.L, X.W.P, B.X, Z.J.L, and X.H.W extracted data and cleaned data. L.X.L, X.W.P, and B.X generated the figures and tables. L.X.L, J.L, Y.Z.W, Y.L.H, and J.N.L: wrote and edited the manuscript. All of the authors read and approved the final manuscript.
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This study was approved by the Ethics Committee of the Chest Hospital of Guangxi Zhuang Autonomous Region (approval number: 2022–09). The study used data collected from the patient records of the hospital inpatient information management system. To protect the privacy of patients, the hospital gave them a digital password and kept their names, ID numbers, and other details confidential. The hospital’s Institutional Review Board approved the waiver of patients’ informed consent because the study posed no risks for patients.
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Li, L., Lv, Y., Su, L. et al. Epidemiology of extrapulmonary tuberculosis in central Guangxi from 2016 to 2021. Eur J Clin Microbiol Infect Dis 42, 129–140 (2023). https://doi.org/10.1007/s10096-022-04524-2
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DOI: https://doi.org/10.1007/s10096-022-04524-2