Schizophrenia-Epidemiology


Schizophrenia-Epidemiology


Prevalence of schizophrenia Incidence Rate 0.15-0.25 Per 1000
General population 1%
Non twin sibling of schizophrenic patient 8%
Dizygotic twin of schizophrenic patient 12%
Monozygotic twin of schizophrenic patient 47%
Child with 1 schizophrenic parent 12%
Child with both parents’ schizophrenic 40%
  • Usual Age of onset in Adolescence & Young Adulthood [If age > 45 then Late Onset]
  • Male= Female, However the onset is earlier in males
  • Prevalence more in LOWER SOCIO-ECONOMIC status
  • Body Type – Asthenic [Thin & Weak] > Athletic [Muscular] > Pyknic [Short – Fat]
  • Pyknic predisposed to manic depressive illness [Bipolar Ds]

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