Table 1.

Demographic and baseline characteristics of patients with acute ischemic stroke receiving intra-arterial treatment, 2008–2018

Overall AIS patients	612 958
Receipt of IAT (%)	17 985 (2.9)
Mean (SE) age in years	68.5 (0.1)
No of women (%)	8867 (49.3)
Race (n, %)
Non-Hispanic White	12 850 (71.4)
Non-Hispanic Black	2687 (14.9)
Other race	2448 (13.6)
Median admission NIHSS score (IQR)*	16 (9–21)

^*NIHSS score missing in 3.9% of patients.

AIS, acute ischemic stroke; IAT, intra-arterial treatment; NIHSS, National Institutes of Health Stroke Scale.