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Chinese Journal of Antituberculosis ›› 2025, Vol. 47 ›› Issue (1): 22-28.doi: 10.19982/j.issn.1000-6621.20240283

• Original Articles • Previous Articles     Next Articles

Prevalence of active tuberculosis in Chinese patients with rheumatic diseases: A multicenter cross-sectional subgroup analysis

Zhang Lifan1,2,3, Chen Yan1, Zhang Yueqiu1, Zhang Fengchun4, Zeng Xiaofeng4, Zhao Yan4, Liu Shengyun5, Zuo Xiaoxia6, Zhang Zhiyi7, Wu Huaxiang8, Chen Sheng9, Li Hongbin10, Zhu Ping11, Wu Lijun12, Qi Wencheng13, Liu Yi14, Zhang Miaojia15, Liu Huaxiang16, Zhou Baotong1,3, Shi Xiaochun1,3, Ruan Guiren1,3, Liu Xiaoqing1,2,3(), The Epidemiological Study and Therapeutic Evaluation of Rheumatic Patients with Tuberculosis Study Team   

  1. 1Division of Infectious Diseases, Department of Internal Medicine, State Key Laboratory of Complex Severe and Rare Disease, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
    2Clinical Epidemiology Unit, International Epidemiology Network, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
    3Centre for Tuberculosis Research, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
    4Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases, State Key Laboratory of Complex Severe and Rare Disease, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
    5Department of Rheumatology and Immunology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
    6Department of Rheumatology and Immunology, Xiangya Hospital, Central South University, Changsha 410008, China
    7Department of Rheumatology and Immunology, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
    8Department of Rheumatology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
    9Department of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200001, China
    10Department of Rheumatology and Immunology, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010000, China
    11Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
    12Department of Rheumatology, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China
    13Department of Rheumatology, Tianjin First Central Hospital, Tianjin 300192, China
    14Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu 610041, China
    15Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
    16Department of Rheumatology, Qilu Hospital of Shandong University, Ji’nan 250012, China
  • Received:2024-07-09 Online:2025-01-10 Published:2025-01-02
  • Contact: Liu Xiaoqing E-mail:liuxq@pumch.cn
  • Supported by:
    National Science and Technology Major Project of the People’s Republic of China(2014ZX10003003);National High Level Hospital Clinical Research Funding(2022-PUMCH-A-119);National High Level Hospital Clinical Research Funding(2022-PUMCH-C-013);National Natural Science Foundation of China(82373648)

Abstract:

Objective: This study aimed to investigate the prevalence of active tuberculosis (ATB) among patients with rheumatic diseases (RD) in China. Methods: Using a stratified multi-stage cluster sampling method, a total of 13550 RD patients who underwent ATB screening from 13 tertiary hospitals in the eastern, central, and western regions of China between September 2014 and March 2016 were included in the survey. Participants underwent screening for ATB, and the prevalence of ATB was calculated. Subgroup analyses were performed based on RD subtype, age, and sex. Results: Among the 13550 surveyed subjects, 105 case diagnosed with ATB, 48 (45.7%) exhibited no classical symptoms such as cough, sputum production, fever, night sweats, or weight loss. Of those with microbiological and/or pathological confirmation of ATB, 35.3% (12/34) were asymptomatic, while the asymptomatic rate was 30.8% (8/26) among patients with bacteriologically confirmed pulmonary tuberculosis (PTB). Extrapulmonary tuberculosis (EPTB) was identified in 41 cases (39.0%), with 28 cases (68.3%) being exclusively EPTB and 13 cases (31.7%) involving combined pulmonary and extrapulmonary disease. The highest prevalence of ATB was observed in patients with systemic vasculitis syndrome, reaching 1915/100000 (13/679; 95%CI: 881/100000-2948/100000), followed by patients with diffuse connective tissue diseases, at 1002/100000 (58/5789; 95%CI: 745/100000-1259/100000). Among RD patients, the 16-34 age group exhibited the highest ATB prevalence, recorded at 1162/100000 (43/3700; 95%CI: 817/100000-1508/100000). Males demonstrated a higher prevalence (919/100000, 30/3264; 95%CI: 592/100000-1247/100000) compared to females (729/100000, 75/10286; 95%CI: 565/100000-894/100000). Conclusion: Patients with RD in China carry a substantial burden of subclinical TB, EPTB, and disseminated TB. The prevalence of ATB shows marked differences across RD subtypes, age groups, and genders.

Key words: Tuberculosis, Rheumatic diseases, Comorbidities, Prevalence, Cross-sectional studies

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