Table 1.

CID group and treatment CID group demographics.

Variable	HC group	CID group	Treatment CID group	P
Age (years)	69.8 ± 7.7	71.1 ± 6.0	70.4 ± 6.4	0.71
Sex (F/M)	7/8	9/6	7/8	0.46
Insomnia duration	/	25.4 ± 23.2	22.1 ± 18.6	/
PSQI	4.2 ± 3.1	16.1 ± 2.4	13.4 ± 3.5	0.02*
HAMA	2.0 ± 2.0	8.9 ± 4.8	7.2 ± 3.2	0.01
HAMD	2.0 ± 2.0	8.2 ± 4.7	6.4 ± 3.1	0.02

^*P < 0.05.