GLCM texture parameters, which were significantly different between patients with FA and controls for at least 1 comparison between groups^{^a}

GLCM Distance (pixel)	Parameter	Group (Mean)				Comparison (P Value, Bonferroni-Corrected, t Test)
GLCM Distance (pixel)	Parameter	P1	P2	C1	C2	P1 × C1	P1 × C2	P2 × C1	P2 × C2
Medulla oblongata
1	Correlation	0.27 ± 0.03	0.25 ± 0.05	0.45 ± 0.09	0.41 ± 0.10	.000^{^b}	.000^{^b}	.000^{^b}	.000^{^b}
1	Variance	11.84 ± 3.36	12.80 ± 4.14	17.71 ± 5.10	15.60 ± 4.83	.008^{^b}	.188	.413	1.00
1	Sum average	86.25 ± 3.45	86.18 ± 2.62	110.75 ± 5.83	103.48 ± 14.32	.000^{^b}	.002^{^b}	.000^{^b}	.002^{^b}
1	Sum variance	32.55 ± 9.52	34.61 ± 10.86	50.24 ± 16.52	43.56 ± 14.79	.014^{^b}	.103	.484	1.00
1	Entropy	1.46 ± 0.15	1.47 ± 0.07	2.00 ± 0.08	1.86 ± 0.23	.000^{^b}	.000^{^b}	.000^{^b}	.000^{^b}
1	Sum entropy	0.98 ± 0.08	0.99 ± 0.04	1.36 ± 0.06	1.25 ± 0.17	.000^{^b}	.000^{^b}	.000^{^b}	.000^{^b}
1	Difference entropy	0.71 ± 0.04	0.72 ± 0.04	0.93 ± 0.05	0.86 ± 0.11	.000^{^b}	.000^{^b}	.000^{^b}	.002^{^b}
1	Homogeneity	0.21 ± 0.05	0.20 ± 0.02	0.27 ± 0.03	0.27 ± 0.04	.004^{^b}	.165	.000^{^b}	.000^{^b}
2	Correlation	0.05 ± 0.05	0.04 ± 0.06	0.18 ± 0.08	0.17 ± 0.10	.000^{^b}	.001^{^b}	.000^{^b}	.002^{^b}
3	Correlation	0.04 ± 0.05	0.02 ± 0.05	0.13 ± 0.07	0.14 ± 0.08	.002^{^b}	.004^{^b}	.000^{^b}	.000^{^b}
4	Correlation	−0.01 ± 0.04	−0.03 ± 0.05	0.08 ± 0.07	0.08 ± 0.08	.004^{^b}	.013^{^b}	.000^{^b}	.001^{^b}
5	Correlation	−0.02 ± 0.03	−0.03 ± 0.05	0.06 ± 0.07	0.05 ± 0.07	.006^{^b}	.055	.008^{^b}	.049^{^b}
Pons
1	Difference variance	7.27 ± 2.24	7.56 ± 1.89	5.58 ± 1.45	5.38 ± 1.11	.490	.142	.125	.034^{^b}