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Table 1 Demographic and clinical characteristics of participants enrolled in this study

From: Combined IFN-γ and IL-2 release assay for detect active pulmonary tuberculosis: a prospective multicentre diagnostic study in China

Characteristica

No. of participants (%) (N = 3254)

Median age (IQR)—year

52.0 (33.0–65.0)

Male sex—no. (%)

1989 (61.1%)

Region

 Guangzhou

901 (27.7)

 Hunan

1044 (32.1)

 Xinjiang

1309 (40.2)

Classification

 Active TB

2536 (77.9)

  Definite TB

1055 (33.6)

  Clinically diagnosed TB

1481 (44.4)

 Non-TB

718 (22.1)

  Pneumonia

382 (11.7)

  Lung cancer

227 (7.0)

  Bronchiectasis

82 (2.5)

  NTM

27 (0.8)

  1. aIQR inter quartile range, TB tuberculosis, NTM nontuberculous mycobacteria