Table 4 Between group comparisons of the FA data (ROI-wise).

From: CNS imaging characteristics in fibromyalgia patients with and without peripheral nerve involvement

	White matter tract	t-value	p-adjusted	Cohen's d	Group	N	Mean	SD	SE
Patients vs controls	Anterior corona radiata l	−3.292	0.009	−0.719	Controls	41	0.540	0.004	0.004
	Anterior corona radiata l	−3.292	0.009	−0.719	Patients	43	0.556	0.003	0.003
	Body of corpus callosum	−3.705	0.004	−0.809	Controls	41	0.825	0.003	0.003
	Body of corpus callosum	−3.705	0.004	−0.809	Patients	43	0.840	0.002	0.002
	Cingulum 40	−4.384	0.001	−0.957	Controls	41	0.609	0.006	0.006
	Cingulum 40	−4.384	0.001	−0.957	Patients	43	0.642	0.005	0.005
	Cingulum 41	−3.456	0.009	−0.754	Controls	41	0.599	0.006	0.006
	Cingulum 41	−3.456	0.009	−0.754	Patients	43	0.626	0.005	0.005
	Fornix 44	−3.843	0.004	−0.839	Controls	41	0.573	0.004	0.004
	Fornix 44	−3.843	0.004	−0.839	Patients	43	0.595	0.004	0.004
	Genu of corpus callosum	−2.939	0.01	−0.642	Controls	41	0.740	0.004	0.004
	Genu of corpus callosum	−2.939	0.01	−0.642	Patients	43	0.757	0.004	0.004
	Pontine crossing tract	−2.992	0.02	−0.653	Controls	41	0.768	0.004	0.004
	Pontine crossing tract	−2.992	0.02	−0.653	Patients	43	0.785	0.004	0.004
	Posterior corona radiata r	−2.992	0.01	−0.642	Controls	41	0.534	0.02	0.004
	Posterior corona radiata r	−2.992	0.01	−0.642	Patients	43	0.551	0.02	0.004
	Posterior limb of internal capsule l	−3.215	0.01	−0.702	Controls	41	0.650	0.004	0.004
	Posterior limb of internal capsule l	−3.215	0.01	−0.702	Patients	43	0.668	0.004	0.004
	Posterior thalamic radiation 34	−3.242	0.01	−0.708	Controls	41	0.617	0.004	0.004
	Posterior thalamic radiation 34	−3.242	0.01	−0.708	Patients	43	0.634	0.004	0.004
	Superior corona radiata l	−2.832	0.02	−0.618	Controls	41	0.551	0.005	0.005
	Superior corona radiata l	−2.832	0.02	−0.618	Patients	43	0.568	0.004	0.004
	Superior corona radiata r	−3.129	0.01	−0.683	Controls	41	0.540	0.004	0.004
	Superior corona radiata r	−3.129	0.01	−0.683	Patients	43	0.556	0.003	0.003
	Superior longitudinal fasciculus r	−2.773	0.02	−0.605	Controls	41	0.566	0.005	0.005
	Superior longitudinal fasciculus r	−2.773	0.02	−0.605	Patients	43	0.584	0.004	0.004
	Uncinate fasciculus l	−0.367	0.04	−0.080	Controls	41	0.586	0.008	0.008
	Uncinate fasciculus l	−0.367	0.04	−0.080	Patients	43	0.590	0.007	0.007

	White matter tract	F-value	p-adjusted	ώ-square	Group	N	Mean	SD	SE
PNS vs noPNS	Posterior limb of internal capsule l	4.8	0.034	0.08	PNS	21	0.658	0.020	0.004
	Posterior limb of internal capsule l	4.8	0.034	0.08	NoPNS	22	0.678	0.029	0.006
	Posterior thalamic radiation 34	4.9	0.048	0.09	PNS	21	0.626	0.022	0.005
	Posterior thalamic radiation 34	4.9	0.048	0.09	NoPNS	22	0.642	0.025	0.005

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