Correlation between NSAA and particular HUI attributes
NSAA
Moderate positive correlations were observed between NSAA scores and the HUI3 ambulation (Spearman correlation of NSAA scores with individual HUI attribute scores, across all visits. Abbreviations: HUI, Health Utility Index; HUI2, Health Utility Index mark 2; HUI3, Health Utility Index mark 3; NE, not estimable; NSAA, North Star Ambulatory Assessment