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Table 2 Twelve-month diagnosis of 425 patients presenting with unilateral pleural effusion between 2008 and 2013 and the median and interquartile range of serum procalcitonin, white cell count and C-reactive protein

From: The role of serum procalcitonin in establishing the diagnosis and prognosis of pleural infection

Diagnosis

n

%

Procalcitonin (μg/l)

White cell count (×109/L)

C-reactive protein (mg/l)

Metastatic malignancy

169

39.8%

<0.05 (0–0.12)

8.9 (7.4–11.0)

34.5 (12–90.75)

Pleural infection

80

18.8%

0.2 (0.1–0.7)

12.5 (9.2–16.3)

135.3 (71.6–239.6)

Malignant mesothelioma

70

16.5%

<0.05 (<0.05- < 0.05)

8.7 (7.1–9.7)

22.2 (9.5–70.3)

Congestive cardiac failure

41

9.6%

<0.05 (<0.05–0.1)

7.4 (6.2–9.2)

9.0 (5.1–22.6)

BAPE

17

4.0%

<0.05 (<0.05–0.1)

8.5 (7.5–9.4)

27.0 (15.4–53.0)

Inflammatory pleuritis

13

3.1%

<0.05 (<0.05–0.1)

7.1 (6.3–7.9)

10.0 (5.0–48.0)

Pleural TB

10

2.4%

0.1 (<0.05–0.2)

7.1 (6.9–7.5)

76.5 (36.9–111.7)

Renal failure

6

1.4%

0.1 (0.1–0.2)

6.8 (5.8–10.3)

25.0 (20.8–37.3)

Hepatic hydrothorax

4

0.9%

<0.05 (<0.05–0.1)

5.0 (4.2–7.5)

2.0 (2.0–4.7)

Pulmonary embolism

3

0.7%

<0.05 (n/a)

5.8 (n/a)

14.0 (n/a)

Iatrogenic/Trauma

3

0.7%

<0.05 (n/a)

10.4 (n/a)

32 (n/a)

Connective tissue disease

3

0.7%

<0.05 (n/a)

9.0 (n/a)

29.0 (n/a)

Post-CABG

3

0.7%

<0.05 (n/a)

7.6 (n/a)

3.0 (n/a)

Pancreatitis

2

0.5%

<0.05 (n/a)

4.0 (n/a)

19.0 (n/a)

Drug-induced

1

0.2%

<0.05 (n/a)

8.6 (n/a)

13 (n/a)

  1. Abbreviations: BAPE benign asbestos related pleural effusion, CABG coronary artery bypass graft, IQR interquartile range, TB tuberculosis