Table 1 Demographic data of patients with schizophrenia and healthy controls

Sex (M/F)

34/35

21/10

44/35

2.960^a

Age (years)

32.68 ± 11.14

40.39 ± 10.35

35.92 ± 11.01

5.434^b

Time in education (years)

10.38 ± 3.59

10.45 ± 3.09

12.48 ± 3.77

7.402^b

BMI (kg/m²)

23.92 ± 2.77

24.51 ± 2.35

23.35 ± 3.36

1.825^b

Smoking

40/29

17/14

35/44

2.932^a

Age schizophrenia onset

30.68 ± 10.81

27.16 ± 10.00

-

1.540^c

Duration of illness (years)

1.98 ± 3.17

12.90 ± 9.04

-

-6.545^c