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Fig. 2 | BMC Musculoskeletal Disorders

Fig. 2

From: 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

Fig. 2

Correlations between Pain Interference (PI) and Physical Function (PF) and Legacy Measures. References for the correlations are provided in the supplementary file. To develop a reference set of correlations we considered correlations between scores from legacy measures and PROMIS scores or other instruments that measure similar constructs. SF-36 = short form 36, PF = physical function, PCS = physical component score, MCS = mental component score, BP = bodily pain, PSS = Perceived Stress Scale, BDI-II = Beck Depression Inventory – II, and 6MWT = 6-min walk test

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