Table 2: Bronchiectasis Severity Index (BSI).32,34

 

Score

Age (years)

< 50

50-69

70-79

> 80

0

2

4

6

Body mass index

< 18.5

18.5-25

26-29

≥ 30

2

0

0

0

FEV1 (% of predicted value)

> 80

50-80

30-49

< 30

0

1

2

3

Medical research council dyspnea scale

1-3

4

5

0

2

3

Colonization by Pseudomonas aeruginosa

No

Yes

0

3

Colonization by other organisms

No

Yes

0

1

Radiological severity

> 3 lobes or cystic bronchiectasis

No

Yes

0

1

Hospitalization in the last year

No

Yes

0

5

Exacerbations in the last year

0

1-2

≥ 3

0

0

2

Score:

mild 0-4 points,

moderate 5-8 points,

severe ≥ 9 points.