Table 3 Comparison of bronchiectasis severity index according to the colonization of Haemophilus influenzae

Age, years

0.676

 <50

0

42 (21.2)

14 (20.3)

28 (21.7)

 50–69

2

129 (65.2)

46 (66.7)

83 (64.3)

 70–79

4

21 (10.6)

9 (13.0)

12 (9.3)

 80+

6

6 (3.0)

0 (0.0)

6 (4.7)

BMI < 18.5 kg/m²

2

25(12.6)

16 (12.4)

9 (13.0)

0.898

FEV₁, % predicted

0.204

 >80

0

108 (54.5)

34 (49.3)

74 (57.4)

 50–80

1

70 (35.4)

27 (39.1)

43 (33.3)

 30–49

2

18 (9.1)

6 (8.7)

12 (9.3)

 <30

3

2 (1.0)

2 (2.9)

0 (0.0)

Hospital admission before study within two years

5

16 (8.1)

7 (10.1)

9 (7.0)

0.438

Exacerbations before study within two years ≥ 3

2

52 (26.3)

28 (40.6)

24 (18.6)

0.002

MRC dyspnea score

0.321

 0

0

197 (99.5)

68 (98.6)

129(100.0)

 1–2

2

1 (0.5)

1 (1.4)

0 (0.0)

 ≥3

3

0 (0.0)

0 (0.0)

0 (0.0)

Pseudomonas colonization

3

60 (30.3)

22 (31.9)

38 (29.5)

0.725

Colonization with other organisms

1

137 (69.2)

69 (100.0)

68 (52.7)

< 0.001

≥ 3 lobes involved or cystic bronchiectasis

1

84 (42.4)

36 (52.2)

48 (37.2)

0.045

Total BSI score

26

5 [3–8]

6 [4–8]

4 [2–7]

0.002