Correlation between NSAA and HUI, and 6MWT and HUI
NSAA
Weak positive correlations were observed between the change in NSAA scores and HUI scores over 48 weeks (HUI3: Change (week 48—baseline) in HUI utility vs. NSAA score, with best-fitting lines. Abbreviations: HUI, Health Utility Index; HUI2, Health Utility Index mark 2; HUI3, Health Utility Index mark 3; NSAA, North Star Ambulatory Assessment