What is the prevalence of schizophrenia?

Updated: Mar 16, 2018
  • Author: Frances R Frankenburg, MD; Chief Editor: Glen L Xiong, MD  more...
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Answer

The lifetime prevalence of schizophrenia has generally been estimated to be approximately 1% worldwide. [52] However, a systematic review by Saha et al of 188 studies drawn from 46 countries found a lifetime risk of 4.0 per 1000 population; prevalence estimates from countries considered least developed were significantly lower than those from countries classed as emerging or developed. [53] Immigrants to developed countries show increased rates of schizophrenia, with the risk extending to the second generation. [13, 14, 15]


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