Table 1 Demographics and clinical characteristics of FEDN patients with schizophrenia and healthy controls

Age (years)^a

27.73 ± 7.54

25.95 ± 6.56

0.086

Sex (M/F)

60/59

42/39

0.040

0.842

Education (years)^a

12.23 ± 2.00

12.57 ± 2.31

1.235

0.268

Smoking (Yes/No)

25/94

13/68

0.770

0.380

BMI (kg/m²)^a

24.62 ± 2.96

24.30 ± 2.39

0.609

0.436

Duration of untreated illness (years)^a

1.99 ± 1.83

Age at onset (years)^a

25.75 ± 6.56

PANSS positive subscore^a

27.91 ± 7.33

PANSS negative subscore^a

16.09 ± 7.58

PANSS general subscore^a

25.18 ± 9.29

PANSS total score^a

69.18 ± 14.81

Hcy (μmol/L)^b

19.80 (15.51, 16.40)

13.01 (11.65, 16.55)

46.865

 < 0.001