The shared incidence of schizophrenia within a family increases with genetic closeness of the relationship.

Question

Quizplus · Accepted Answer

Research has shown that the risk of developing schizophrenia increases with genetic closeness to a family member who has been diagnosed with the disorder. For example, a person who has a first-degree relative (such as a parent or sibling) with schizophrenia has a higher risk of developing the disorder compared to someone who has a second-degree relative (such as an aunt or grandparent) with the condition. This suggests a genetic component to the development of schizophrenia.

The Shared Incidence of Schizophrenia Within a Family Increases with Genetic