Table 3.: Values of the BSI variables.

Variable Patients (n = 37)
Age (yrs)
< 50
50-69
70-79
> 80

BMI (kg.m-2)
< 18.5
> 18.5

FEV1 % predicted
> 80%
50-80%
30-49%
< 30%

Hospital admission in previous year
No
Yes

Exacerbations in previous year
No
Yes

MRC dyspnea score
1-3
4
5

Pseudomonas aeruginosa colonization
No
Yes

Colonization with other microorganisms
No
Yes

Radiological extent (HRCT)
> 3 lobes affected or cystic bronchiectasis
No
Yes
8 (21.6%)
22 (59.4%)
7 (18.9%)
/


2 (5.4%)
35 (94.6%)


5 (13.5%)
23 (62.2%)
9 (24.3%)
/


6 (16.2%)
31 (83.8%)


21 (56.7%)
16 (43.3%)


33 (89.2%)
4 (10.8%)
/


34 (91.9%)
3 (8.1%)


31 (83.7%)
6 (16.3%)



27 (73.0%)
10 (27.0%)

Frequencies are expressed as a number and percentage of patients with certain variable.Yrs: years; BMI: body mass index; kg: kilogram; m: meter; FEV1: forced expiratory volume in 1 second; MRC: Medical Research Council; HRCT: high-resolution computed tomography.