Table 1. Correlation between greatest diameter and annual and 5-year risks of rupture (%) (14).

Diameter	Annual risk of rupture	Risk of rupture within 5 years
< 3 cm	0%	No data
3–3.9 cm	0.4%	1–2%
4–4.9 cm	1.1%	5–13%
5–5.9 cm	3.3%	25–38%
6–6.9 cm	9.4%	No data
7–7.9 cm	24%	No data