The probability that a close biological relative (i.e., a parent, sibling, or child) of a patient suffering from schizophrenia will also be diagnosed with schizophrenia is about

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The probability that a close biological relative of a patient suffering from schizophrenia will also be diagnosed with schizophrenia is approximately 10%. Research shows that the risk for developing schizophrenia increases with the degree of genetic relatedness to an affected individual. Parents, siblings, and children of a person with schizophrenia have a higher risk of developing the disorder than the general population. However, this does not mean that all close relatives of a person with schizophrenia will develop the disorder.

The Probability That a Close Biological Relative (I