Table 1 Comparison of Marfan's syndrome versus bicuspid aortic valve in aetiology of aortic dissection.¹⁰.

	Incidence	Likelihood of aortic dissection
Marfan's syndrome	0.01%	40%
Bicuspid aortic valve	1–2%	5%

Due to the higher incidence, bicuspid aortic valve disease causes more cases of aortic dissection than Marfan's syndrome.¹⁰