Table 3.

Cox regression analysis for aneurysm growth or rupture

Analysis	Predictor	Univariable [95%CI]	Bivariable [95%CI]
Main analysis: n = 559 aneurysms	Aneurysm wall enhancement	3.1 [1.3–7.4]	1.4 [0.5–3.7]
	Aneurysm size	1.4 [1.2–1.5]	1.3 [1.2–1.6]
Subgroup analysis: small (< 7 mm) aneurysms; n = 473 aneurysms	Aneurysm wall enhancement	3.3 [1.1–9.7]	2.7 [0.8–8.9]
	Aneurysm size	2.5 [0.9–2.0]	1.2 [0.8–1.8]
Subgroup analysis: 3T field strength; n = 443 aneurysm	Aneurysm wall enhancement	2.5 [0.9–6.8]	1.2 [0.4–4.1]
	Aneurysm size	1.3 [1.1–1.5]	1.3 [1.1–1.5]

Bold indicates statistical significance at an alpha level of 0.05