Description

Psallidas et al reported 2 scores for the PROMISE study, one clinical and one biochemical. Both can stratify patients with a malignant pleural effusion. The authors are from multiple institutions in Europe, Russia and the United States.


Patient selection: malignant pleural effusion

 

Outcome: 3-month mortality

 

Differences between the clinical and biological scores:

(1) tissue inhibitor of metalloproteinase 1 (TIMP1)

(2) different weightings for the other parameters

 

Parameters for the clinical score:

(1) chemotherapy

(2) radiotherapy

(3) hemoglobin in g/dL

(4) white blood cell count in 10^9/L

(5) C-reactive protein nmol/L

(6) ECOG performance status

(7) cancer type

 

Parameter

Finding

Points

chemotherapy

no

0

 

yes

4

radiotherapy

no

0

 

yes

2

hemoglobin

> 16 g/dL

0

 

14 to 16

1

 

12 to 14

2

 

10 to 12

3

 

< 10 g/dL

4

WBC count

< 4 * 10^9/L

0

 

4 to 6.3

2

 

6.3 to 10

4

 

10 to 15.8

7

 

> 15.8 * 10^9/L

10

C-reactive protein

< 3 nmol/L

0

 

3 to 10

3

 

10 to 32

5

 

32 to 100

8

 

> 100

11

ECOG performance

0 or 1

0

 

2 to 4

7

cancer type

mesothelioma

0

 

lung

5

 

other

4

 

where:

• The apparent SIU for CRP is nmol/L. 1 nmol/L = 0.105 mg/L if the molecular weight is taken as 105,000 Daltons. However, higher molecular weights (up to 144,000) are given.

 

total score =

= SUM(points for all 7 parameters)

 

Interpretation:

• minimum score: 0

• maximum score: 43

• The higher the score the worse the prognosis.

 

Clinical Score

Group

3-Month Mortality

0 to 20

A

< 25%

21 to 27

B

25 to 49.9%

28 to 35

C

50 to 74.9%

36 to 43

D

75 to 100%

 

 

Score

Absolute Risk

0

1.9

1

2.2

2

2.5

3

2.9

4

3.3

5

3.8

6

4.4

7

5

8

5.7

9

6.5

10

7.5

11

8.5

12

9.7

13

11

14

12.4

15

14

16

15.8

17

17.8

18

20

19

22.3

20

24.9

21

27.6

22

30.5

23

33.6

24

36.8

25

40.1

26

43.5

27

47

28

50.6

29

54.1

30

57.6

31

61

32

64.3

33

67.4

34

70.5

35

73.3

36

76

37

78.5

38

80.7

39

82.8

40

84.8

41

86.5

42

88.1

43

89.5

from the Appendix

 

Performance:

• The area under the ROC curve was 0.78.


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