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Case Control Study
©Author(s) (or their employer(s)) 2026.
World J Psychiatry. Mar 19, 2026; 16(3): 115163
Published online Mar 19, 2026. doi: 10.5498/wjp.v16.i3.115163
Table 1 Sociodemographic and clinical characteristics of schizophrenia patients and healthy controls, n (%)/mean ± SD

Patients (n = 77)
Healthy controls (n = 55)
t/χ²
P value
Age (years)35.19 ± 10.5038.69 ± 11.72-1.7960.075
Sex (male/female)38/3927/280.0010.977
Body mass index (kg/m2)25.10 ± 4.8024.90 ± 3.920.2550.799
Education (years)10.12 ± 2.8313.22 ± 3.41-5.694< 0.001
Smoking status 18 (23.4)15 (27.3)0.2600.610
Age of onset (years)25.42 ± 5.62---
Duration of illness (years)7.0 (3.0, 15.50)---
Equivalent dose of chlorpromazine (mg/day)663.10 ± 279.63---


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