Additional file 1: of Patient-Reported Outcomes Measurement Information System (PROMIS) instruments among individuals with symptomatic knee osteoarthritis: a cross-sectional study of floor/ceiling effects and construct validity

The additional file contains a supplemental table entitled “Matrix of Spearman correlation coefficients between PROMIS short-form instruments and legacy measures.” The file also includes the raw data used for the figures and the appropriate references. (XLSX 48 kb)