Volume 24, Issue 5 pp. 467-474
Original Article

Bidirectional association between tuberculosis and sarcoidosis

Sheng-Huei Wang

Sheng-Huei Wang

Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan

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Chi-Hsiang Chung

Chi-Hsiang Chung

Department of Medical Research, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan

Taiwanese Injury Prevention and Safety Promotion Association, Taipei, Taiwan

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Tsai-Wang Huang

Tsai-Wang Huang

Division of Thoracic Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan

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Wen-Chiuan Tsai

Wen-Chiuan Tsai

Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan

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Chung-Kan Peng

Chung-Kan Peng

Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan

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Kun-Lun Huang

Kun-Lun Huang

Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan

Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan

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Wann-Cherng Perng

Wann-Cherng Perng

Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan

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Chih-Feng Chian

Chih-Feng Chian

Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan

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Wu-Chien Chien

Wu-Chien Chien

Department of Medical Research, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan

School of Public Health, National Defense Medical Center, Taipei, Taiwan

C.-H.S. and W.-C.C. contributed equally to this work.Search for more papers by this author
Chih-Hao Shen

Corresponding Author

Chih-Hao Shen

Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan

C.-H.S. and W.-C.C. contributed equally to this work.Correspondence: Chih-Hao Shen, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, No. 325, Section 2, Cheng-Gong Road, Neihu 114, 11490 Taipei, Taiwan. Email: [email protected]Search for more papers by this author
First published: 05 February 2019
Citations: 29
(Associate Editor: Cynthia Chee; Senior Editor: Chris Grainge)

ABSTRACT

Background and objective

Tuberculosis (TB) and sarcoidosis are both granulomatous diseases with potential interassociations. However, much uncertainty remains; thus, the present study aimed to clarify the association between these diseases.

Methods

We established two cohorts in this retrospective longitudinal cohort study using data obtained from the Taiwan National Health Insurance Database from 2000 to 2015. One cohort, which comprised 31 221 patients with TB and 62 442 age-, sex- and index year-matched controls, was used to analyse the risk of sarcoidosis; the other cohort comprised 2442 patients with sarcoidosis and 9688 controls and was used to assess the risk of TB. A Cox proportional hazards model adjusted for potential confounders was used in each cohort.

Results

Patients with TB showed an 8.09-fold higher risk of developing sarcoidosis than non-TB subjects (95% CI = 3.66–17.90), whereas patients with sarcoidosis showed a 1.85-fold higher risk of developing TB than non-sarcoidosis subjects (95% CI = 1.36–2.50). The TB subtype analysis revealed the highest risk of developing sarcoidosis in patients with extrapulmonary TB, and the highest risk of developing extrapulmonary TB was observed in patients with sarcoidosis compared with non-sarcoidosis subjects. Patients with TB showed a higher risk of developing sarcoidosis throughout the follow-up period, but patients with sarcoidosis only showed a higher risk of developing TB within the first year.

Conclusion

TB is a risk factor for developing sarcoidosis. The results of this bidirectional cohort study also highlight the clinical difficulty of diagnosing sarcoidosis and TB.

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