Table 2. Comparison of aneurysm diameters at 3-, 4-, and 5-year follow-up to paired baseline data.

Time point†	Baseline diameter [mm, median (IQR)]	Follow-up diameter [mm, median (IQR)]	Significance
3 years (n=53)	43.5 (42.0–45.5)	43.9 (42.2–45.5)	P=0.02‡
4 years (n=38)	43.0 (42.0–45.4)	43.9 (41.8–45.5)	P=0.33
5 years (n=22)	45.0 (42.6–47.0)	45.2 (43.0–48.2)	P=0.10

^†, for patients with multiple scans across the follow-up period, all available scans were compared to baseline imaging; ^‡, values with P<0.05 were considered statistically significant. IQR, interquartile range.