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Table 4 LMEM results, 6MWT and Go-30-Feet regressed on visit and Muscle Fat Fraction Burden Index. Fat burden index coefficient corresponds to an IQR change increase

From: Longitudinal study of MRI and functional outcome measures in facioscapulohumeral muscular dystrophy

Variable 6MWT
(AIC = 710.54)
Go-30-Feet
(AIC = 253.60)
Beta [95% CI] P-value Beta [95% CI] P-value
Intercept 495.5 [448.1, 543.7] <.001 4.32 [3.18, 5.51] <.001
Follow-up vs baseline −7.66 [−32.36, 17.35] 0.54 0.16 [−0.34, 0.65] 0.51
Muscle Fat Fraction Burden Index −18.63 [−26.20, −11.04] <.001 0.37 [0.18, 0.55] <.001