National Institute of Health Stroke Scale (NIHSS) scores changed over time after intravenous thrombolysis
| Outcome | Women (n=541) | Men (n=899) | P value | Adjusted p value* |
| Median NIHSS on admission | 12.3±6.8 | 11.6±6.7 | 0.04 | – |
| Median NIHSS 2 hours (±15 min) | 9.8±7.0 | 9.0±7.2 | 0.004 | – |
| Median NIHSS 24 hours (±2 hour) | 9.1±8.3 | 8.3±7.9 | 0.07 | – |
| Median NIHSS at discharge or 7 days (±1 day) | 6.7±7.8 | 6.2±7.0 | 0.41 | – |
| Improving NIHSS 2 hours (±15 min) | 2.4±4.5 | 2.6±5.0 | 0.66 | 0.59 |
| Improving NIHSS 24 hours (±2 hours) | 3.1±6.7 | 3.2±6.6 | 0.91 | 0.45 |
| Improving NIHSS at discharge or 7 days (±1 day) | 5.2±7.1 | 5.0±6.7 | 0.20 | 0.33 |
*Adjusted baseline variables: age, diastolic blood pressure, current smoking, hypertension, diabetes mellitus, atrial fibrillation, antihypertensive agents before stroke, stroke-to-needle time, stroke-to-visit time, stroke-to-imaging time and Trial of Org 10172 in Acute Stroke Treatment (TOAST) types.
NIHSS, National Institute of Health Stroke Scale.