Degree centrality values in the left calcarine as a potential imaging biomarker for anxious major depressive disorder

Table 1 Demographic and clinical characteristics of the participants

Demographic data	Anxious MDD group (n = 23)	Non-anxious MDD group (n = 30)	HC group (n = 28)	F, t, or χ2	P value
Age (years)	35.57 ± 11.30	30.07 ± 9.91	31.39 ± 8.63	2.105	0.1291
Education level (years)	12.91 ± 3.32	14.10 ± 3.87	13.46 ± 5.01	0.535	0.5881
Gender (male/female)	23 (5/18)	30 (10/20)	28 (11/17)	1.817	0.4032
Illness duration (months)	7.64 ± 8.47	5.14 ± 4.22	-	1.402	0.1673
HAMD score	27.48 ± 1.62	27.60 ± 1.52	-	-0.281	0.6273
HAMA score	20.96 ± 4.04	5.23 ± 1.28	-	17.990	< 0.0013

¹P was obtained by analyses of variance.

²P was obtained by a χ² test.

³P was obtained by two-sample t-tests.

MDD: Major depressive disorder; HC: Healthy control; HAMD: Hamilton depression rating scale; HAMA: Hamilton Anxiety Scale.