Table 3.

Predictors of prolonged |ΔLKN| between EMS-reported and neurologist-determined LKN times

	Univariate Predictors of prolonged |ΔLKN|	Multivariable Predictors of prolonged |ΔLKN|
Age	p=0.17	β (SE) = 0.778 (0.330), p=0.016
Female gender	p=0.57	Not included
African American	p=0.35	Not included
Admission NIHSS	p=0.90	Not included
Item 1A on NIHSS: Altered LOC	p=0.39	Not included
Item 9 on NIHSS: Aphasia	p=0.71	Not included
Onset-to-Arrival Time	p<0.001	p=0.92
Wake-Up Stroke Symptoms, n (%)	p<0.0001	β (SE) = 226.5 (35.7), p<0.0001
Brought in by EMS agency that had Stroke-Specific Training	p=0.54	Not included

|ΔLKN| = absolute difference in EMS-reported and neurologist-determined last known normal times

β (SE) = Regression Coefficient (Standard Error)