TABLE 3

The Bronchiectasis Severity Index

DomainPoints
Age years
 <500
 50–692
 70–794
 ⩾806
Body mass index kg·m-2
 <18.52
 ⩾18.50
FEV1 % predicted
 >800
 50–801
 30–492
 <303
Hospital admissions in the past 2 years
 Yes5
 No0
Exacerbation frequency in the past 12 months
 0–20
 ⩾32
MRC dyspnea score
 1–30
 42
 53
Bacterial colonisation
Pseudomonas aeruginosa3
 Other PPMs1
 None0
Radiological severity
 ⩾3 lobes involved or cystic bronchiectasis1
 <3 lobes involved0
  • 0–4 points: low risk of hospitalisation and mortality; 5–8 points: moderate risk of hospitalisation and mortality; ⩾9 points: high risk of hospitalisation and mortality.