Table 2.

FN, FA values of CST, STT, ATR, STR, PTR by group.

	Values	CPSP	P1	Stroke Control	P2	Normal Control	P3
CST	FN	0.31 (0.06–0.76)	0.881	0.33 (0.05–0.71)	0.003	0.86 (0.46–1.14)	0.001
	FA	0.75 (0.65–0.94)	0.881	0.79 (0.73–0.90)	<0.001	0.96 (0.91–1.03)	<0.001
STT	FN	0.47 (0.31–0.69)	0.728	0.40 (0.09–0.86)	<0.001	1.4 (0.59–2.73)	<0.001
	FA	0.79 (0.68–0.85) *	<0.001	0.98 (0.85–1.11) *	0.994	0.98 (0.91–1.10) *	<0.001
ATR	FN	0.76 (0.65–0.94)	0.823	0.68 (0.60–1.10)	0.005	1.00 (0.90–1.26)	0.002
	FA	0.96 (0.83–1.09)	0.593	0.99 (0.85–1.09)	0.551	1.01 (0.95–1.06)	0.337
STR	FN	0.45 (0.28–0.62)	0.785	0.34 (0.17–0.70)	<0.001	0.91 (0.67–1.40)	<0.001
	FA	0.88 (0.83–0.93) *	0.004	1.00 (0.90–1.07) *	0.836	0.97 (0.91–1.04) *	0.001
PTR	FN	0.32 (0.18–0.86)	0.172	0.60 (0.40–1.22)	0.748	0.69 (0.25–1.27)	0.223
	FA	0.93 (0.87–1.00)	0.087	1.03 (0.93–1.12)	0.005	0.91 (0.84–0.98)	0.734

Values are the median (interquartile range: first–third quartiles) and normalized. Normalized values of FA, FN in CPSP and non-CPSP group are shown as affected/non-affected. For normal control, normalized values are shown as left/right. CST, corticospinal tract; STT, spinothalamic tract; ATR, anterior thalamic radiation; STR, superior thalamic radiation; PTR, posterior thalamic radiation; FA, fractional anisotropy; FN, fiber number. * p < 0.05, three groups were compared using the Kruskal–Wallis test. P1; comparison between CPSP and non-CPSP groups with the Mann–Whitney U-test with the Bonferroni correction (p ≤ 0.0166 deemed to be significant). P2; comparison between non-CPSP and control groups with the Mann–Whitney U-test with the Bonferroni correction (p ≤ 0.0166 deemed to be significant). P3; comparison between control and CPSP groups with the Mann–Whitney U-test with the Bonferroni correction (p ≤ 0.0166 deemed to be significant).