Table 1 The characteristics of patients with TW positive in BALF

Age,median(range,years)

66.29(51-85)

BMI(mean±SD,kg/m^2)

22.97±2.27

Male

6(85.71%)

Clinical manifestations

 Cough

7(100%)

 Expectoration

6(85.71%)

 Fever

4(57.14%)

 Haemoptysis

1(14.29%)

 Chest tightness

2(28.57%)

 Chest pain

1(14.29%)

 Dyspnea

1(14.29%)

 Anorexia

4(57.14%)

 Weakness

5(71.43%)

 Gastrointestinal symptoms

2(28.57%)