Table 3.

Correlations (corr) between age and muscle fatty infiltrate (MFI) using three different MFI quantification methods: T1 intermuscular, T1 subcutaneous, and Dixon.

Spinal level	Muscle	Correlations of MFI with age
		T1 intermuscular		T1 subcutaneous		Dixon
		corr (r)	p	corr (r)	p	corr (r)	p
L6	P	0.050	0.864	−0.607*	0.021	0.624*	0.017
	M	0.635*	0.015	−0.156	0.595	0.429	0.126
	L	0.853**	< 0.001	0.115	0.696	0.690**	0.006
L5	P	0.147	0.617	−0.610*	0.021	0.296	0.305
	M	0.612*	0.020	−0.021	0.944	0.472	0.088
	L	0.415	0.140	−0.410	0.145	0.481	0.082
L4	P	0.089	0.761	−0.633*	0.015	0.282	0.329
	M	0.328	0.252	−0.330	0.249	0.424	0.131
	L	0.216	0.459	−0.596*	0.024	0.608*	0.021
L3	P	0.151	0.606	−0.722**	0.004	0.388	0.171
	M	0.408	0.147	−0.183	0.530	0.268	0.354
	L	0.209	0.474	−0.596*	0.024	0.489	0.076
L2	P	−0.053	0.858	−0.706**	0.005	0.342	0.232
	M	0.374	0.188	−0.021	0.944	0.275	0.341
	L	0.131	0.656	−0.578*	0.030	0.731**	0.003
L1	P	−0.199	0.494	−0.713**	0.004	0.000	> 0.99
	M	0.305	0.289	−0.165	0.573	0.362	0.203
	L	−0.197	0.499	−0.702**	0.005	0.527	0.053

*p < 0.05.

**p < 0.01.