Table 1 Criteria for TB diagnosis in the physical examination

Active PTB

(1) smear-positive and culture-positive tuberculosis in sputum and bronchial lavage fluid; pathological diagnosis for tuberculosis in the lung lesions

(2) although 3 sputum smear-negative tests, chest radiographic examination showing active tuberculosis in the lesions

(3) tuberculosis suspicious symptoms such as cough, expectoration, hemoptysis;

(4) strong positive tuberculin test;

(5) anti-tuberculosis antibody examination positive;

(6) extrapulmonary histopathological examination confirming tuberculosis;

(7) anti-inflammatory therapy invalid and antituberculosis diagnostic treatment or follow-up show valid.

(1) or (2) + (3)–(7) in any of the terms

Inactive PTB

(1) residual lesions are stable for more than six months or gradual fibrosis and calcification occurs in persons who were previously diagnosed with active tuberculosis and cured by effective anti-tuberculosis treatment;

(2) lack of a history of active tuberculosis diagnosis, no symptoms such as cough, sputum, or hemoptysis and sputum tuberculosis bacterium negative but chest CT showed lesions that conforms to PTB that in common locations of pulmonary tuberculosis, and the lesions did not change for more than 6 months without anti-tuberculosis treatment.

(1) or (2)