Table 3:

Univariate and multivariate logistic regression analyses of LFI and 3 LFI-combined models of factors associated with rupture in AVMs

Univariable AnalysisAngioarchitecture ModelHemodynamic ModelCombined Model
OR (95% CI)P ValueOR (95% CI)P ValueOR (95% CI)P ValueOR (95% CI)P Value
LFI1.007 (1.003–1.010).001a1.004 (1.001–1.008).02a1.005 (1.001–1.009).009a1.004 (1.000–1.007).03a
Mean nidus volume0.979 (0.964–0.994).007a0.959 (0.931–0.988).005a
Angioarchitecture
 Feeding artery dilation1.047 (0.443–2.472).921.028 (0.429–2.461).95
 Single feeding artery0.783 (0.299–2.049).621.112 (0.768–1.608).57
 Deep venous drainage2.315 (1.018–6.947).05a2.684 (1.132–6.361).03a
 Diffuse nidus2.863 (1.180–6.947).02a2.990 (1.114–8.022).03a
 Flow-related aneurysm3.417 (1.521–7.678).003a3.617 (1.544–8.474).003a
Hemodynamic
 Feeding artery
  FWHM (sec)1.067 (0.703–1.619).760.949 (0.590–1.524).83
  Drainage vein
 FWHM (sec)1.218 (0.750–1.978).431.17 1 (0.695–1.974).55
  MTT (ICA-sinus)1.084 (0.811–1.448).591.297 (0.933–1.803).12
  TRV0.999 (0.997–1.001).261.004 (0.999–1.009).14
  • a Statistical significance (P < .05).