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Correlation matrix derived from Pearson correlations. BATT, bilateral anterior thigh thickness; BATT‐SCR, bilateral anterior thigh thickness : subcutaneous tissue ratio; PROMIS, Patient‐Reported Outcome Measures Information System, Physical Function; SMM‐Sergi, skeletal muscle mass (Sergi equation); SMM‐Janssen, skeletal muscle mass (Janssen equation); SPPB, Short Physical Performance Battery.
