Relationship between Interferon Beta-1A Administration and Intracranial Vascular Tone Regulation in Patients with Relapsing-Remitting Multiple Sclerosis: A Pilot Study

Table 4

Backward linear regression: significant predictors on the TCD parameters.

Dependent variables	Predictors	β	Std β	value	Adjusted
MFV-ICA	Age
MFV-A1 ACA	Disease duration
	Therapy duration
MFV-PCA	Disease duration
	Therapy duration

β: regression coefficient; Std β: standardized regression coefficient; MFV-ICA: mean blood flow velocity internal carotid artery; MFV-A1 ACA: mean blood flow velocity section A1 of the anterior cerebral artery; MFV-PCA: mean blood flow velocity posterior cerebral artery.