Table 1

Demographic and clinical characteristics for participants

Characteristic	GAD (n=18）	HC (n=18)	t/Z	P value
Age (years)	41.89 (10.79)	38.17 (10.56)	0.99	0.34
Sex (male/female)	13/5	11/7	0.71	0.48
Educational level (years)	13.44 (2.85)	16.06 (2.93)	1.78	0.09
HAMA	18.80 (9.36)	0.78 (0.94)	19.59	<0.001
HAMD	8.89 (5.32)	0.94 (1.26)	5.18	<0.001
HPS	0.61 (0.15)	0.68 (0.23)	1.00	0.33

GAD, generalised anxiety disorder; HAMA, Hamilton Anxiety Rating Scale; HAMD, Hamilton Depression Rating Scale; HC, healthy control; HPS, heartbeat perception score.