What is sibship?

Sibship is a medical term meaning a group of individuals born of the same parents. Factors associated with sibship include birth order, number of siblings or number of births in the family, and inter-birth interval periods. It is not known how these factors may be associated with risk for schizophrenia.

What is the evidence for sibship?

Moderate quality evidence suggests a small to medium-sized increased risk of schizophrenia in people who had one, four or five births in their family, or in children born less than 18 months before or after their closest sibling. First birth order may be associated with a reduced risk for schizophrenia.

March 2022

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Last updated at: 1:38 pm, 30th March 2022
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Fact Sheet Technical Commentary
Tags:  Sibship

NeuRA Libraries

Title Colour Legend:
Green - Topic summary is available.
Orange - Topic summary is being compiled.
Red - Topic summary has no current systematic review available.