Monitoring white matter volume alterations via cranial magnetic resonance imaging in major depressive disorder: Association with cognitive dysfunction

Table 4 Comparative analysis of fractional anisotropy across brain regions, mean ± SD

Groups	Left superior frontal gyrus	Right superior frontal gyrus	Left middle frontal gyrus	Right middle frontal gyrus	Left inferior frontal gyrus	Right inferior frontal gyrus
Observation group (n = 86)	0.48 ± 0.10	0.46 ± 0.08	0.40 ± 0.05	0.38 ± 0.10	0.42 ± 0.08	0.44 ± 0.06
Control group (n = 50)	0.50 ± 0.05	0.48 ± 0.05	0.42 ± 0.06	0.40 ± 0.09	0.41 ± 0.06	0.46 ± 0.05
t value	1.320	0.364	2.088	1.166	0.767	1.989
P value	0.189	0.716	0.039	0.246	0.444	0.049
Groups	Left temporal lobe	Right temporal lobe	Left occipital lobe	Right occipital lobe	Genu of the corpus callosum	Splenium of the corpus callosum
Observation group (n = 86)	0.40 ± 0.06	0.38 ± 0.06	0.48 ± 0.07	0.48 ± 0.07	0.80 ± 0.09	0.80 ± 0.05
Control group (n = 50)	0.46 ± 0.04	0.50 ± 0.09	0.46 ± 0.05	0.50 ± 0.10	0.79 ± 0.09	0.79 ± 0.04
t value	6.299	9.316	1.773	1.367	0.625	1.207
P value	< 0.0001	< 0.0001	0.078	0.174	0.533	0.230