A Swedish national adoption study of risk of irritable bowel syndrome (IBS).
Rasmus WaehrensBengt ZöllerJan SundquistKristina SundquistMirNabi PirouzifardPublished in: BMJ open gastroenterology (2017)
The present study indicates that biological (genetic) factors are important for the familial clustering of IBS. The heritability calculated is in the range from twin studies and suggests that heritability may be estimated in adoptees.