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Table 2 Characteristic of blood and Induced Sputum samples, and EBC chemokines

From: Increased of exhaled breath condensate neutrophil chemotaxis in acute exacerbation of COPD

 

Healthy controls

Stable COPD patients

Exacerbated COPD patients

Outpatients

Hospitalized

No of subjects

20

17

16

17

Blood

    

Leukocytes (per mL)

5530 (3060)

7825 1420)

8825 (5040)*

12660 (5430)**†

Neutrophils (per mL)

3295 (1940)

4985 (1560)

6670 (5093)**

9090 (6030)**†

% neutrophils

60.1 (7.8)

59.2 (7.6)

76.0 (8.4)**††

84 (15.2)**†††

% lymphocytes

30.9 (7.3)

28.9 (8.6)

17.0 (10.1)*

10.8 (8.3)**†††

CRP (mg/L)

0.9 (2.1)

3.9 (5.9)

21.4 (83.5)**†

9.2 (49.0)**†

Fibrinogen (g/L)

2.6 (0.6)

3.3 (1.4)

4.9 (2.4)***†††

5.1 (1.7)***†

Induced sputum

    

Squamous epithelial cells (%)

24.0 (25.0)

10.0 (10.0)

0.0 (2.0)**

6.0 (21.0)

Total non squamous cell count (x106 cells/g sputum)

0.3 (1.2)

3.7 (6.4)*

13.1 (25.7)**

6.0 (16.5)**

Viability (%)

69.5 (24.8)

78 (16)

86.5 (14.5)

72.5 (29.5)

Neutrophils, %

49.3 (36.1)

81.5 (28.5)*

91.0 (7.6)**

83.5 (25.3)*

Neutrophils count(x103/g sputum)

120.2 (532)

4511.8 (5853)*

11139.0 (24009)**

3523.8 (16974)**

Macrophages, %

32.0 (26.1)

8 (14.7)*

4.5 (7.1)**

6.5 (10.9)**

Eosinophils, %

0.0 (0.6)

2.5 (3.8)*

0.4 (0.6)

0.5 (1)

Lymphocytes, %

1.9 (2.6)

1.0 (1.8)

1.0 (1.0)

1.3(2.8)

Epithelial cells, %

6.8 (21.8)

7.0 (7.9)

1.8 (3.6)

1.1 (7.9)

Exhaled breath condensate

    

LTB4 pg/mL

34.0 (28)

74.0 (53)*

66.0 (47.0)**

68 (46)*

GRO-α pg/mL

10.0 (13)

17 (34)

56.1 (49.0)*

45.0 (46.0)*

  1. Data are expressed as medians (IQR), or mean cells counts are expressed as absolute counts per gramme (g) of sputum and as percentages of total inflammatory cells, excluding squamous cells. COPD: chronic obstructive pulmonary disease.
  2. *p < 0.05, **p < 0.001, ***p <0.0001 vs healthy subjects, †p <0.05, †† p <0.01, ††† p <0.001 vs stable COPD.