Table 5.

Group 3a: ectatic aortas less than 5.0 cm at last scan with a minimum of 4 years' follow-up

Total number (n)	194
Mean growth rate	1.33 mm/year (0.0–4.0 mm/year)
+95% CI	1.44 mm/year
−95% CI	1.23 mm/year
Mean age at last scan	76.0 years
Mean follow-up	7.0 years (4–14 years)
Mean size at first scan	2.8 cm (2.6–2.9 cm)
Mean size at last scan	3.7 cm (2.6–4.9 cm)

Ranges are given in parentheses.