Extrapulmonary tuberculosis in China: a national survey

•The extrapulmonary tuberculosis (EPTB) epidemic situation in China was systematically revealed.•One-fourth of tuberculosis patients had EPTB, and the proportion of EPTB solo was 21.3%.•The proportion of EPTB in children was significantly higher, reaching 50.5%.•EPTB occurs mostly in respiratory, mu...

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Veröffentlicht in:International journal of infectious diseases 2023-03, Vol.128, p.69-77
Hauptverfasser: Li, Tao, Yan, Xiangyu, Du, Xin, Huang, Fei, Wang, Ni, Ni, Ni, Ren, Jingjuan, Zhao, Yanlin, Jia, Zhongwei
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Sprache:eng
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Zusammenfassung:•The extrapulmonary tuberculosis (EPTB) epidemic situation in China was systematically revealed.•One-fourth of tuberculosis patients had EPTB, and the proportion of EPTB solo was 21.3%.•The proportion of EPTB in children was significantly higher, reaching 50.5%.•EPTB occurs mostly in respiratory, musculoskeletal, and peripheral lymphatic systems.•EPTB should be added to the National Tuberculosis Program as a notifiable disease. Extrapulmonary tuberculosis (EPTB) is not a notifiable infectious disease in China but is a heavy burden on public health. However, the epidemic situation of EPTB nationwide is unclear. This study aimed to investigate the magnitude and main subtypes of EPTB in China. We conducted a national cross-sectional study with multistage, stratified cluster random sampling during 2020-2021. We calculated proportions of EPTB in all patients with TB by organs. Logistic regression models were used to estimate odds ratios by characteristics. A total of 6843 patients with TB were included. Of them, 24.6% were patients with EPTB, and the proportion of EPTB solo was 21.3%. Higher EPTB burden was observed in children, female patients, clinically diagnosed patients, provincial-level and prefectural-level health facilities, and Central and West China. EPTB occurred most frequently in respiratory (35.5%), musculoskeletal (15.8%), and peripheral lymphatic (15.8%) systems with top three subtypes, including tuberculous pleurisy (35.0%), spinal TB (9.8%) and cervical tuberculous lymphadenopathy (7.9%). With the increase of age, proportion of peripheral lymphatic TB decreased, and proportion rank of genitourinary TB rose. It is essential to strengthen the diagnosis and treatment capacity for EPTB in primary medical facilities. EPTB should be added to the National Tuberculosis Program as a notifiable disease.
ISSN:1201-9712
1878-3511
DOI:10.1016/j.ijid.2022.12.005