Fig. 1From: Performance and immune characteristics of bronchoalveolar lavage by research bronchoscopy in pulmonary tuberculosis and other lung diseases in the Western Cape, South AfricaStandards for reporting of diagnostic accuracy (STARD) diagram illustrating study design and participant classification. TB group encompassed confirmed PTB patients with radiographical evidence, positive GeneXpert and confirmed Mtb sputum culture. Healthy community controls had no evidence of TB or other diseases. TB Contacts group had close contact with an active TB patient and included a subset of 12 participants with Diabetes Mellitus. OLD group presented with various respiratory diseases and included HIV infected participants. STARD = standards for reporting of diagnostic accuracy; TB = tuberculosis; PTB = pulmonary TB; Mtb = Mycobacterium tuberculosis; OLD = other lung diseases; HIV = human immunodeficiency virusBack to article page