Patient characteristics by multimodal CT imaging status
| Characteristic | Multimodal Imaging (n = 108) | Unenhanced CT Alone (n = 15) | P Value |
|---|---|---|---|
| Age ≥65 | 65.7 (71) | 80.0 (12) | 0.38 |
| Female sex | 59.3 (64) | 60.0 (9) | 0.96 |
| Prehospital stroke notification | 83.3 (90) | 73.3 (11) | 0.47 |
| Peak arrival time (12pm to 12 am) | 39.8 (43) | 40.0 (6) | 0.99 |
| Weekday arrival (Monday–Friday) | 70.4 (76) | 66.7 (10) | 0.77 |
| Initial NIHSS Score ≥8 | 63.8 (67) | 46.7 (7) | 0.20 |
| Onset-to-arrival timea | 48 (35–75) | 50 (30–70) | 0.99 |
| Arrival to CT start timea | 11 (7–17) | 15 (10–30) | 0.11 |
| Door-to-needle timea | 55 (41–75) | 78 (53–114) | 0.02 |
| Yearb | 0.56 | ||
| 2006 | 30.6 (33) | 40.0 (6) | |
| 2007 | 32.4 (35) | 26.7 (4) | |
| 2008 | 37.0 (40) | 33.3 (5) |
a Event times are shown as median (IQR).
b Cochran-Armitage test for trend.