Journal
ACTA PSYCHIATRICA SCANDINAVICA
Volume 110, Issue 4, Pages 257-263Publisher
WILEY-BLACKWELL
DOI: 10.1111/j.1600-0447.2004.00380.x
Keywords
obstetric complications; maternal care; body mass index; Mother and Child Health Handbook; schizophrenia
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Objective: We investigated whether antenatal factors in mothers would increase the risk of schizophrenia in the offspring, and also examined any relationship between these factors and histories of obstetric complications (OCs). Method: Using the Mother and Child Health Handbooks of 52 patients with schizophrenia and 284 healthy subjects, we evaluated the risk-increasing effects of the frequency of antenatal care visits and mothers' body mass index (BMI) at both early and late pregnancy. Results: In logistic regression analysis, there was a significant association between the number of antenatal care visits and the risk of the disorder; an increase in a unit of visits corresponds to a reduction of the risk by 12%. We also found a 24% increase in the risk with a one-unit increase of BMI at the early pregnancy, and a 19% increase at the late pregnancy. These antenatal factors were found to contribute, in part, to an excess of OCs in individuals with schizophrenia. Conclusion: Poor maternal care during pregnancy and comparatively high maternal BMI especially at early pregnancy may cause a predisposition to schizophrenia in the offspring.
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