Table 1.

Clinical baseline data of ID and HC groups.

	Insomnia Disorder Group (ID) N=45	Healthy control group (HC) N=30	P.overall
Baseline information
Females, n(%)	27 (60.00%)	20 (66.67%)	0.559
Age (years)	42.00 (27.5,53.0)	32.00 (26.0,48.3)	0.258
BMI(kg/m2)	21.99 ± 2.90	22.19 ± 2.57	0.754
PHQ-9	6.00 (3.0,7.0)	1.00 (0.0,2.0)	<0.001***
GAD-7	4.00 (1.0,7.5)	1.00 (0.0,2.3)	0.001**
PSQI	13.00 (10.0,16.0)	4.00 (2.0,5.0)	<0.001***
ESS	6.00 (3.0,10.0)	5.00 (3.0,7.3)	0.412
ISI	16.00 (10.5,19.5)	2.50 (1.0,6.0)	<0.001***
HAMA	5.00 (3.0,8.5)	0.00 (0.0,1.0)	<0.001***
HAMD	6.00 (3.0,7.5)	0.000 (0.0,1.0)	<0.001***
PSG
TBT (min)	515.46 ± 56.77	452.70 ± 57.20	<0.001***
TST(min)	384.52 ± 78.39	386.75 ± 62.22	0.896
WASO (min)	85.50 (55.3,144.0)	35.00 (22.3,64.0)	<0.001***
SE(%)	77.90 (0.7,0.8)	86.90 (0.8,0.9)	<0.001***
SOL(min)	11.00 (7.5,32.8)	7.50 (4.3,25.0)	0.037*
N1(min)	46.50 (35.3,65.0)	37.75 (23.3,52.6)	0.013*
N1(%)	12.00 (9.0,18.2)	8.45 (5.4,14.0)	0.005**
N2(min)	189.73 ± 57.13	190.88 ± 47.79	0.928
N2(%)	49.50 (42.5,55.6)	48.60 (43.1,56.2)	0.974
N3(min)	59.43 ± 29.12	76.92 ± 43.43	0.040*
N3(%)	14.90 (9.4,21.2)	18.800 (11.5,27.7)	0.104
REM(min)	76.96 ± 29.95	79.62 ± 29.15	0.704
REM(%)	19.700 (15.6,23.6)	19.600 (15.3,25.6)	0.520
TWT(min)	114.500 (74.3,156.5)	54.00 (34.9,72.6)	<0.001***

*P<0.05, ** P <0.01, *** P <0.001.