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Table 1 Demographic data and pleural fluid characteristics (n = 132)

From: The usefulness of pleural fluid presepsin, C-reactive protein, and procalcitonin in distinguishing different causes of pleural effusions

 

Empyema

(n = 11)

Parapneumonic

(n = 16)

Tuberculous

(n = 9)

Malignant

(n = 46)

Paramalignant

(n = 13)

Transudates

(n = 10)

Unclassified

(n = 27)

Age (years)

74.3 ± 11.1

76.7 ± 10.1

76.1 ± 17.4

74.5 (67, 82.3)

77.2 ± 10.9

80.7 ± 9.5

79 (73, 88)

Sex (male/female)

9/2

13/3

4/5

25/21

9/4

9/1

20/7

Pleural fluid white blood cell count

6355 (2160, 23,693)

1870 (963, 6338)

931 (782, 1325)

1290 (890, 2355)

1532 ± 999

658 ± 356

1045 (613, 4029)

Pleural fluid lymphocytes (%)

22.3 ± 22.4

33.3 ± 26.5

81.1 ± 11.3

36.5 (17.3, 63.5)

57.3 ± 28.9

54.9 ± 16.1

73 (35.5, 86.5)

Pleural fluid neutrophils (%)

67.7 ± 31.1

45.5 (8.9, 77.1)

5.2 ± 5.2

5.0 (1.4, 20)

10.0 (4.5, 16.5)

16.1 ± 16.1

8.0 (1.1, 15)

Pleural fluid glucose (mg/dL)

10 (1, 107)

160 ± 62

104 ± 28

106 (74, 123)

104 ± 33

117 (110, 141)

93 ± 43

Total protein in pleural fluid (g/L)

3.8 ± 1.1

3.9 ± 0.6

4.2 ± 0.9

4.6 (3.8, 5.1)

3.9 (3.5, 4.8)

2.7 ± 1.0

4.5 ± 1.1

Total protein in serum (g/L)

6.0 ± 1.1

6.3 (5.8, 6.6)

6.5 ± 0.6

6.8 ± 0.7

6.9 ± 0.7

6.0 (5.3, 6.4)

7.1 ± 1.2

Total protein in pleural fluid/serum ratio

0.65 ± 0.19

0.67 (0.54, 0.71)

0.64 ± 0.11

0.67 (0.58, 0.72)

0.62 ± 0.10

0.44 ± 0.14

0.63 ± 0.14

Pleural fluid LDH (U/L)

1076 (474, 2522)

496 ± 247

396 ± 250

410 (267, 775)

234 (164, 392)

117 (94, 128)

232 (171, 543)

Serum LDH (U/L)

189 ± 71

254 (194, 325)

205 (186, 245)

269 (237, 395)

240 ± 68

250 (209, 363)

191 (152, 238)

LDH pleural fluid/serum ratio

6.22 (1.41, 29.67)

1.45 (0.90, 3.41)

1.77 ± 1.02

1.25 (0.97, 2.92)

0.88 (0.76, 1.77)

0.42 ± 0.17

1.24 (0.85, 2.45)

  1. LDH, lactate dehydrogenase; Data are presented as the mean ± SD for normally distributed data or as the median (interquartile ranges) for skewed data