. Author manuscript; available in PMC: 2013 Feb 1.

Published in final edited form as: Aust N Z J Psychiatry. 2012 Feb 24;46(4):340–351. doi: 10.1177/0004867412440191

Table 1.

Demographic data for patient groups, displayed as means/standard deviations, or numbers of subgroups.

	Controls (n = 24)	Bipolar (n = 27)	Variable	p
Age at scan (years)	38.67 ± 11.07	38.38 ± 10.87	t = 0.091	0.93
Gender (M/F)	7/17	8/19	χ² = 0.001	0.97
Current NART-IQ	115.08 ± 9.59	113.80 ± 7.13	t = 0.53	0.60
Education level (years)	14.58 ± 2.10	14.64 ± 2.83	t = −0.080	0.94
Age at illness onset (years)		24.88 ± 8.37
Illness duration (years)		13.50 ± 10.13
Lifetime manic episodes		8.85 ± 10.17
Lifetime depressive episodes		11.12 ± 10.77
History of psychosis (Y/N)		16/11
Family history (BP/UP/BUP/N/U)		3/5/2/11/5
Medication at scan time(LI/VAL/CBZ/LIVAL/VALCBZ/MF/U)		8/7/1/4/5/1

NART: National Adult Reading Test; IQ: intelligence quotient.

For family history, BP: family history of bipolar disorder; UP: unipolar depression; BUP: both bipolar disorder and unipolar depression; N: no family history; U: unknown.

For medication at scan time, LI: lithium; VAL: valproate; CBZ: carbamazepine; LIVAL: both lithium and valproate; VALCBZ: both valproate and carbamazepine; MF: medication free; U: unknown.