TABLE 2. Outcomes in the Study Arms.

Outcome (n = 148)

Cutting needle(n = 73)

n (%)

Abrams needle(n = 75)

n (%)

False negative (n = 43, 29.0%)

Diffuse pleural mesothelioma ( n= 21)

Metastatic malignant pleural diseases (n = 20)

Tuberculous pleurisy (n = 2)

True positive (n = 68, 45.9%)

Diffuse pleural mesothelioma (n = 15)

Metastatic malignant pleural diseases (n = 49)

Tuberculous pleurisy (n = 4)

True negative (other benign diseases) (n = 37, 25.1%)

27/73 (36.9)

12/19 (63.2)

14/36 (38.9)

1/3 (33.3)

31/73 (42.5)

7/19 (36.8)

22 /36 (61.1)

2/3 (66.7)

15/73 (20.5)

16/75 (21.3)

9/17 (52.9)

6/33 (18.2)

1/3 (33.3)

37/75 (49.3)

8/17 (47.1)

27/33 (81.8)

2/3 (66.7)

22/75 (29.3)

0.036

0.698

0.218