Table 2.

Statistical results of linear mixed-effects model for aGMV, aGMV_i, aGMV_c, and LI_GMV by (4).

	Value	Std. error	DF	t-value	p value
Model for aGMV
β1 (days after stroke)	−0.0029	0.0031	21	−0.9516	0.3521
β2  (age)	−0.0011	0.0021	10	−0.5228	0.6125
β3 (age: days after stroke)	0.0005	0.0001	21	0.9210	0.3675
Model for aGMV i
β1 (days after stroke)	−0.0042	0.0038	21	−1.1104	0.2794
β2  (age)	−0.0017	0.0023	10	−0.7408	0.4758
β3 (age: days after stroke)	0.0001	0.0001	21	1.0566	0.3027
Model for aGMV c
β1 (days after stroke)	0.0077	0.0036	21	2.1674	0.0418 ∗
β2  (age)	0.0010	0.0023	10	0.4296	0.6766
β3 (age: days after stroke)	−0.0001	<0.0001	21	−1.9484	0.0649
Model for LI GMV
β1 (days after stroke)	0.0139	0.0065	21	2.1194	0.0461 ∗
β2  (age)	0.0034	0.0033	10	1.0442	0.3210
β3 (age: days after stroke)	−0.0002	0.0001	21	−1.9314	0.0670

^∗ p < 0.05.