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Table 1 Characteristics at baseline

From: Neutrophil side fluorescence: a new indicator for predicting the severity of patients with bronchiectasis

Characteristics

All patients (n = 82)

Mild bronchiectasis (n = 26)

Moderate bronchiectasis (n = 24)

Severe bronchiectasis (n = 32)

Healthy control (n = 28)

BSI score system

     

Sex, n (%)

     

  Man

41 (50)

7 (27)

14 (58)

20 (62.5)

13 (46)

  Woman

41 (50)

19 (73)

10 (42)

12 (37.5)

15 (54)

Age, n (%)

     

  < 50 y (0)

11 (13)

5 (19)

4 (17)

2 (6)

16 (57)

  50 ~ 69 y (2)

50 (61)

20 (77)

13 (54)

17 (53)

11 (39)

  70 ~ 79 y (4)

13 (16)

1 (4)

6 (25)

6 (19)

1 (4)

  ≥ 80 y (6)

8 (10)

0 (0)

1 (4)

7 (22)

0 (0)

BMI (kg/m2), n (%)

     

  < 18.5 (2)

22 (27)

1 (4)

4 (17)

17 (53)

 

  ≥ 18.5 (0)

60 (73)

25 (96)

20 (83)

15 (47)

 

FEV1%pred, n (%)

     

  > 80% (0)

19 (23)

16 (62)

1 (4)

2 (6)

 

  50% ~ 80% (1)

42 (51)

10 (38)

15 (63)

17 (53)

 

  30% ~ 49% (2)

15 (18)

0 (0)

6 (25)

9 (28)

 

  < 30% (3)

6 (8)

0 (0)

2 (8)

4 (13)

 

Hospitalization of the last year, n (%)

     

  Yes (5)

33 (40)

0 (0)

6 (25)

27 (84)

 

  No (0)

49 (60)

26 (100)

18 (75)

5 (16)

 

Times of exacerbations in last years, n (%)

     

  0 ~ 2 (0)

74 (90)

26 (100)

24 (100)

24 (75)

 

  ≥ 3 (2)

8 (10)

0 (0)

0 (0)

8 (25)

 

mMRC score, n (%)

     

  1 ~ 3 (0)

70 (85)

26 (100)

22 (92)

22 (69)

 

  4 (2)

12 (15)

0 (0)

2 (8)

10 (31)

 

  5 (3)

0 (0)

0 (0)

0 (0)

0 (0)

 

Pseudomonas aeruginosa infection, n (%)

     

  Yes (3)

19 (23)

2 (8)

2 (8)

15 (47)

 

  No (0)

63 (77)

24 (92)

22 (92)

17 (53)

 

Other bacterial infections n (%)

     

  Yes (1)

30 (37)

12 (46)

7 (29)

11 (34)

 

  No (0)

52 (63)

14 (54)

17 (71)

21 (66)

 

HRCT shows the number of dilatated lobes of the lung ≥ 3, n (%)

     

  Yes (1)

46 (56)

8 (31)

15 (63)

23 (72)

 

  No (0)

36 (44)

18 (69)

9 (37)

9 (21)

 

Clinical parameters

     

CRP

22.25 ± 42.33

3.40 ± 4.14

25.68 ± 44.97

34.99 ± 51.90

 

PCT

0.09 ± 0.17

0.03 ± 0.02

0.09 ± 0.18

0.13 ± 0.23

 

Neu*

5.20 ± 2.74

4.00 ± 1.41

4.51 ± 1.92

6.70 ± 3.37

3.56 ± 1.00

NEUT-SFL*

44.18 ± 3.44

43.47 ± 3.04

44.49 ± 3.23

44.53 ± 3.89

40.42 ± 2.26

  1. Data are presented as mean ± SD except where otherwise indicated. Both sexuality and ages of the two groups had no significance (P = 0.83, P = 0.76, respectively). The level of neutrophil count and NEUT-SFL were statistically different between healthy controls and patients. *P < 0.01
  2. BSI, bronchiectasis severity index; BMI, body mass index; FEV1% pred, the prediction of forced expiratory volume in the first second; mMRC, modified medical research council; CRP, C-reaction protein; PCT, Procalcitonin; HRCT: high resolution computed tomography; Neu, neutrophil; NEUT-SFL, neutrophil side fluorescence