Table 1.

Clinical and demographic features.

Features	Patients (N = 19) mean (SD)	Controls (N = 20) mean (SD)
Gender (male/female)	14/5	15/5
Handedness (right/left)	17/2	18/2
Age	33.2 (9.8)	32 (8.2)
Parental NS-SEC	2.6 (1.7)	2.5 (1.6)
SSPI total score*	11.1 (10)	0.6 (0.8)
Reality distortion*	2.4 (2.9)	0 (0)
Disorganization*	0.2 (0.7)	0.1 (0.3)
Psychomotor poverty*	2.3 (3.7)	0 (0)
Illness duration	7.7 (8.3)	–
DDD of antipsychotics	0.8 (0.7)	–
GAF score*	47.3 (10.7)	88.1 (7.4)

SD, standard deviation; NS-SEC, national statistics socio-economic classification; SSPI, signs and symptoms of psychotic illness; DDD, defined daily dose; GAF, global assessment of functioning. *Significantly different between the two groups using Mann–Whitney U test (p < 0.05).