Sibship

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 bipolar disorder.

What is the evidence for sibship as a risk factor for bipolar disorder?

Moderate to low quality evidence suggests no association between twin birth and bipolar disorder in adulthood.

April 2019

Last updated at: 4:26 am, 4th April 2019
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Fact Sheet Technical Commentary

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