Fig. 3. Interval times for stroke (time 0) to arrival in the emergency department (O-ER), stroke to intravenous thrombolysis (O-IV), and stroke to intraarterterial thrombolysis (O-IA). The data are shown as the median and 25–75 quartiles with the error bars  representing the CI⁹⁵. Outliers are shown as individual filled circles . The time thresholds for initiation of intravenous (dotted line ) and intra-arterial therapy (dashed line ) are provided for reference. GA = general anesthesia; LA = local anesthesia; n = the number of patients within each treatment category at the indicated time interval.