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.

June 2020

Last updated at: 12:33 am, 25th June 2020
To view documentation related to this topic download the files below
Fact Sheet Technical Commentary

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.