Table 5.

Comparison of brain structure and emotional symptom between poor sleeper and good sleeper.

Variables	Poor sleeper (n = 21)	Good sleeper (n = 29)	X2 or T	p
Age, years	70.95 ± 7.65	69.45 ± 6.03	0.777	0.441
Education, years	7.70 ± 4.41	7.93 ± 4.21	−0.182	0.857
Male, n (%)	5 (23.8)	4 (13.8)	0.828	0.464
Whole brain volume, cm3	1386.94 ± 168.78	1334.91 ± 113.14	1.306	0.198
Left transverse temporal gyri volume, mm3	1.00 ± 0.18	0.94 ± 0.15	1.159	0.117
Right transverse temporal gyri volume, mm3	0.78 ± 0.13	0.75 ± 0.12	0.554	0.582
Left transverse temporal gyri thickness, mm3	2.31 ± 0.16	2.19 ± 0.14	2.698	0.010*
Right transverse temporal gyri thickness, mm3	2.29 ± 0.22	2.23 ± 0.02	1.072	0.289
SAS	27.37 ± 4.83	22.35 ± 3.61	3.495	0.001*
GDS	5.43 ± 4.37	1.71 ± 2.69	3.367	0.001*

Abbreviation: SAS, self-rating Anxiety Scale; GDS, Geriatric Depression Scale; *means p < 0.05.