Table 1 Chemical characteristics of pleural fluid

S. LDH

Malignant

415–1390

1046.91 ± 225.03

39.795

0.001*

P1

0.001*

TB

410–870

643.33 ± 111.73

P2

0.001*

Others

560–830

707.14 ±108.28

P3

0.435

Pl. ADA

Malignant

11–42

21.87 ± 6.39

138.064

0.001*

P1

0.001*

TB

35–107

71.88 ± 19.95

P2

0.911

Others

15–33

22.43 ± 6.00

P3

0.001*

Pleural fluid Lymphocytic count

Malignant

50–100

67.47 ±13.10

0.156

0.856

P1

0.581

TB

50–90

69.21 ± 12.11

P2

0.961

Others

57–85

67.71 ± 8.96

P3

0.782

Cancer ratio

Malignant

16.6–97.5

52.43 ± 19.36

59.405

0.001*

P1

0.001*

TB

5.4–23.7

10.00 ± 5.04

P2

0.003*

Others

21.8–44.7

32.89 ± 7.52

P3

0.001*

Cancer ratio plus

Malignant

21.7–195

80.69 ± 35.88

42.355

0.001*

P1

0.001*

TB

6.8–43.1

14.78 ± 7.67

P2

0.009*

Others

30.7–64.7

49.34 ± 12.71

P3

0.006*

Pl. CEA

Malignant

86–780

246.40 ±147.66

37.926

0.001*

P1

0.001*

TB

2–31

12.71 ± 8.36

P2

0.001*

Others

2–35

14.43 ± 11.52

P3

0.972

Pl. IFN-ϒ

Malignant

3.5–13.7

7.18 ± 2.74

68.072

0.001*

P1

0.001*

TB

132.5–1322.6

542.37 ± 337.67

P2

0.991

Others

3.8–9.1

6.34 ± 2.08

P3

0.001*