. Author manuscript; available in PMC: 2012 May 1.

Published in final edited form as: Clin EEG Neurosci. 2010 Oct;41(4):184–195. doi: 10.1177/155005941004100405

Table 1.

Means, standard deviations (SD), and ranges for demographic and clinical variables

Variable	Patients (n = 23, 15 male)			Healthy Controls (n = 23, 15 male)
Variable	Mean	SD	Range	Mean	SD	Range
Age (years)	31.1	10.4	18–53	30.5	8.2	21–51
Handedness (LQ)^a	70.7	34.7	0–100	70.3	23.0	5–100
Education (years)^b	13.6	2.3	10–18	15.2	1.5	12–18
Onset age (years)	22.8^c	7.7	8–43
Illness duration (years)	9.3^c	10.5	0–33
Total BPRS	39.4^c	9.6	24–64
PANSS general	33.9^c	8.9	17–58
PANSS positive	18.2^c	5.7	10–29
PANSS negative	14.4^c	4.7	7–23

BPRS: brief psychiatric rating scale; PANSS: positive and negative syndrome scale

Laterality quotient⁶⁴ can vary between −100.0 (completely left-handed) and +100.0 (completely right-handed).

The available data for 20 patients (13 male) and 21 healthy controls (14 male) yielded a marginally significant group main effect, F_[1,40] = 3.48, p = .07.

n = 21.