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. Author manuscript; available in PMC: 2023 Aug 24.
Published in final edited form as: Eur Radiol. 2022 Aug 11;33(1):595–605. doi: 10.1007/s00330-022-09035-4

Fig. 2.

Fig. 2

Causal mediation analysis. We evaluated the role of changes in MRI biomarkers of thigh muscle degeneration (baseline to 4th year) as the mediatory variables of the association between DM and KOA worsening. KOA-related symptoms worsening was assessed using NASS incidence. DM: diabetes mellitus, KOA: knee osteoarthritis, NASS: non-acceptable symptomatic state