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. Author manuscript; available in PMC: 2019 Dec 1.
Published in final edited form as: Osteoarthritis Cartilage. 2018 Aug 18;26(12):1643–1650. doi: 10.1016/j.joca.2018.08.003

Figure 1. Functional Clustering of Osteoarthritis Progression.

Figure 1.

Top: X-ray data revealed two major profiles of joint space narrowing—non-progressing and progressing. Bottom: WOMAC pain scores revealed three profiles of pain progression: stable levels of pain, worsening, and improving pain.