TABLE 3

Summary of patient feedback demographics and visual analogue score (VAS) responses

Healthy volunteersCystic fibrosis
OpenClosedOpenClosed
Subjects n1113
Males/females n/n1/1010/3
Age years34.4±10.831.0±5.3
LCI6.6 (0.5)10.9 (2.2)
VAS score
 Ease of wash-out %93 (71–96)85 (80–91)93 (81–99)87 (78–96)
 Ease of wash-in %96 (95–100)95 (79–100)89 (80–97)87 (72–93)
 Time taken to complete %81 (78–97)87 (79–97)77 (69–95)81 (69–95)
  • Data are presented as mean±sd or median (interquartile range), unless otherwise stated. LCI: lung clearance index.