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  • Title: [Experience with epidemiologic studies of childhood schizophrenia].
    Author: Shmaonova LM, Liberman IuI, Vrono MSh.
    Journal: Zh Nevropatol Psikhiatr Im S S Korsakova; 1980; 80(10):1514-20. PubMed ID: 7435036.
    Abstract:
    An epidemiological study of the adult schizophrenic population (5039) of 3 Moscow districts has shown that 31,3% of the individuals have fallen ill before the age of 18, out of them 23,4% at the age of 12--17 years. The intensity of schizophrenia manifestation in the pubertal period was the highest. A comparison of the sex ratio at the onset of the disease at different periods of childhood and puberty has shown that the younger the boys are, the higher is the morbidity rate among them. In the initial stage of the disease at the age of 0--17 years malignant schizophrenia prevails threefold and slowly progressive schizophrenia almost twofold as compared to the patients who fell ill after 18 years of age. At the onset of the disease in adults as compared to childhood and adolescence there prevail relatively medium progressive and attack-like forms (shift-like and periodical). It was also noted that malignant schizophrenia is more common among males and periodical forms among females. A comparison of the relative frequency of forms depending upon the onset enables one to claim that the morbidity rate (all forms) undoubtedly depends upon the age, particularly upon the pubertal, while its forms are related to the sex and not to the pubertal age.
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