GRIN2B Gene and Associated Brain Cortical White Matter Changes in Bipolar Disorder: A Preliminary Combined Platform Investigation

Table 1

Demographic and clinical characteristics of participants.

Characteristics	BD; (𝑛=14)	HC; (𝑛=22)	Test statistic	P
Age^a, years	36.9 (12.2)	32.7 (12.3)	𝑡=−0.986	.331
Gender^b
Males; Females	10 (71.4); 4 (28.6)	11 (50.0); 11 (50.0)	𝜒^2=1.616	.204
Education^a, years	11.4 (2.3)	14.1 (2.3)	𝑡=0.662	<0.05
Age at onset^a, years	32.3 (13.5)	—	—	—
Duration of psychiatric illness^a, years	4.07 (5.62)	—	—	—
Duration of untreated illness^a, years	0.25 (0.34)	—	—	—
Medication
Lithium; Valproate	7; 7	—	—	—

aMean (S.D.).
bMean (%).
BD: patients with bipolar disorder; HC: healthy controls.