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Minor physical anomalies in childhood and adolescent onset schizophrenia
Kazuya Hata1, Junzo Iida, Hidemi Iwasaka
1Hokutokai Sawa Hospital, Department of Psychiatry Nara Medical University, College of Nursing, Nara Rehabilitation Center, Kashihara, Japan.
Abstract:
A modified version of the Waldrop scale (WS) was used to assess the prevalence of minor physical anomalies in schizophrenic patients (n = 71) and healthy controls (n = 65). The mean total WS score was 3.32 (SD 1.98) for the schizophrenic patients, significantly higher than that for the controls (2.19, SD 1.18). Minor physical anomalies were compared between two schizophrenic groups, divided on the basis of age at onset, early onset schizophrenia (EOS, onset under age 18 years) group and late onset schizophrenia (LOS, onset at or above age 20 years) group. The mean total WS score was 3.92 (SD 1.86) in the EOS group, significantly higher than the 2.59 (SD 1.79) in the LOS group. Minor physical anomalies are an indirect index for early prenatal central nervous system (CNS) maldevelopment; the present study indicated association between minor physical anomalies and EOS, thus a relationship between early prenatal CNS maldevelopment and EOS. These results support the hypothesis that EOS constitutes a subset of schizophrenia in which neurodevelopmental damage is largely involved.
Insights
Schizophrenia patients exhibit more minor physical anomalies than healthy individuals. Early onset schizophrenia patients show significantly more anomalies, suggesting a link to prenatal neurodevelopmental issues.
Area of Science:
- Neuroscience
- Psychiatry
- Developmental Biology
Background:
- Minor physical anomalies can indicate prenatal central nervous system (CNS) maldevelopment.
- Schizophrenia is a complex mental disorder with potential neurodevelopmental origins.
Purpose of the Study:
- To investigate the prevalence of minor physical anomalies in patients with schizophrenia compared to healthy controls.
- To explore differences in anomaly prevalence between early onset schizophrenia (EOS) and late onset schizophrenia (LOS) groups.
Main Methods:
- Utilized a modified Waldrop scale (WS) to assess minor physical anomalies.
- Compared WS scores between schizophrenic patients (n=71) and healthy controls (n=65).
- Analyzed anomaly differences between EOS and LOS patient subgroups.
Main Results:
- Schizophrenic patients had significantly higher mean WS scores (3.32) than controls (2.19).
- EOS patients exhibited significantly higher mean WS scores (3.92) compared to LOS patients (2.59).
Conclusions:
- Findings suggest an association between minor physical anomalies and schizophrenia, particularly EOS.
- Results support the hypothesis that EOS may represent a distinct subtype of schizophrenia involving early neurodevelopmental damage.