Table 1

Baseline characteristics of intention-to-treat population

Variable at screening/baseline (intention-to-treat population)Inhaled mannitol
n=233
Control
n=228
Age years59±1460±13
Female sex (%)63.162.3
Caucasian (%)94.896.5
FEV1
 Litres1.76±0.591.67±0.51
 % Predicted63.0±13.661.5±13.4
FEV1/FVC ratio (%)65±1165±11
Ex-smoker (%)39.938.6
Exacerbation rate (events/year)3.20±1.43.25±1.4
24 h sputum weight (g)28.9±18.729.0±19.9
SGRQ total score53.0±14.652.2±14.7
Macrolide use (%)20.224.6
Pseudomonas aeruginosa positive (%)17.720.6
Cause of bronchiectasis (%)
 Unknown50.650.0
 Infection32.236.0
 Primary ciliary dyskinesia4.32.2
 Other12.911.8
  • Plus-minus values are means ±SD.

  • SGRQ, St George's Respiratory Questionnaire.