Uni- and multivariable proportional hazards for time to rupture
| Variable | Univariablea | Multivariableb | ||||
|---|---|---|---|---|---|---|
| RR | 95% CI | P Value | aRR | 95% CI | P Value | |
| Brain AVM supratentorial location | 1.46 | 1.21–1.76 | <.001 | 1.19 | 1.01–1.41 | .03 |
| Brain AVM deep location | 1.46 | 1.29–1.65 | <.001 | 1.43 | 1.22–1.67 | <.001 |
| Nidus size | 1 | 1–1.01 | .36 | |||
| Prenidal arterial aneurysm | 0.5 | 0.37–0.65 | <.001 | 0.62 | 0.46–0.83 | <.001 |
| Intranidal aneurysm | 1.25 | 1–1.55 | .27 | |||
| Any deep venous drainage | 1.03 | 0.92–1.16 | .61 | |||
| Exclusively deep venous drainage | 1.39 | 1.16–1.67 | .002 | 1.12 | 0.9–1.4 | .43 |
Note:—RR indicates relative risk; aRR, adjusted relative risk.
↵a Confidence intervals are profile-likelihood.
b Confidence intervals are Wald.