گفتار درمانی تخصصی کرج 09121623463Prevalence

The lifetime prevalence of schizophrenia appears to be approximately 0.3%-0.7%, al­though there is reported variation by race/ethnicity, across countries, and by geographic origin for immigrants and children of immigrants. The sex ratio differs across samples and populations: for example, an emphasis on negative symptoms and longer duration of dis­order {associated with poorer outcome) shows higher incidence rates for males, whereas definitions allowing for the inclusion of more mood symptoms and brief presentations (associated with better outcome) show’ equivalent risks for both sexes.

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