Baseline characteristics for all patients and differences between patients with and without a substantially delayed DNT indicated by the 90th percentile
| Total no of patients n=6080 | Patients with DNT ≤90th percentile n=5478 | Patients with DNT >90th percentile n=602 | P value | |
| Mean age in years (SD) | 71 (13) | 71 (13) | 71 (14) | 0.46 |
| Female sex (%) | 46 | 46 | 49 | 0.19 |
| Median NIHSS* score (IQR) | 5 (3–9) | 5 (3–10) | 4 (2–8) | <0.001 |
| Unknown NIHSS score (%) | 35 | 35 | 40 | 0.01 |
| Admission during off-hours (%) | 49 | 49 | 48 | 0.46 |
| Admission at a comprehensive stroke centre (%) | 41 | 41 | 43 | 0.30 |
P value represents statistical difference between dichotomised groups.
*NIHSS score.
DNT, door-to-needle time; NIHSS, National Institutes of Health Stroke Scale.