Table 1.
Demographic and baseline characteristics among patients with acute ischemic stroke, 2008–2018
| Variables | 2008 (n=22 086) | 2009 (n=27 963) | 2010 (n=35 320) | 2011 (n=40129) | 2012 (n=41121) | 2013 (n=59 395) | 2014 (n=68 925) | 2015 (n=66944) | 2016 (n=70 657) | 2017 (n=80 681) | 2018 (n=82 456) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean (SE) age, years | 70.4 (0.1) | 70.6 (0.1) | 70.0 (0.1) | 70.0 (0.1) | 70.0 (0.1) | 70.2 (0.1) | 70.5 (0.1) | 70.4 (0.1) | 70.6 (0.1) | 70.5 (0.1) | 70.4 (0.1) |
| No (%) of women | 11 608 (52.6) | 14 509 (51.9) | 18 137 (51.4) | 20 684 (51.5) | 20 879 (50.8) | 30 108 (50.7) | 34 590 (50.2) | 33 810 (50.5) | 35 241 (49.9) | 39 997 (49.6) | 40 835 (49.5) |
| Race, n (%) | |||||||||||
| White | 16 388 (74.2) | 20 760 (74.2) | 25 616 (72.5) | 29 220 (72.8) | 30 168 (73.4) | 44 499 (74.9) | 51 413 (74.6) | 49 793 (74.4) | 52 460 (74.2) | 58 966 (73.1) | 59 680 (72.4) |
| Black | 4388 (19.9) | 5570 (19.9) | 7672 (21.7) | 8576 (21.4) | 8610 (20.9) | 11 280 (19.0) | 12 753 (18.5) | 12 084 (18.1) | 12 749 (18.0) | 14 537 (18.0) | 14 358 (17.4) |
| Other race | 1310 (5.9) | 1633 (5.8) | 2032 (5.8) | 2333 (5.8) | 2343 (5.7) | 3616 (6.1) | 4759 (6.9) | 5067 (7.6) | 5448 (7.7) | 7178 (8.9) | 8418 (10.2) |
| Median (IQR) admission NIHSS score | |||||||||||
| IVT* | 12 (7–18) | 11 (7–17) | 11 (6–17) | 10 (6–16) | 9 (5–16) | 9 (5–16) | 8 (5–15) | 7 (4–13) | 7 (4–12) | 6 (3–12) | 6 (3–11) |
| IAT* | 17 (12–22) | 14 (7–20) | 15 (8–21) | 15 (8–21) | 16 (10–21) | 16 (10–21) | 14 (8–21) | 16 (9–21) | 15 (8–21) | 15 (9–21) | 15 (8–21) |
| IVT+IAT* | 16 (13–20) | 17 (13–19) | 17 (13–22) | 18 (13–21) | 17 (12–21) | 16 (12–21) | 17 (11–21) | 16 (10–21) | 16 (11–21) | 16 (10–21) | 16 (10–22) |
*
Treatment given at a participating hospital.
IAT, intra-arterial treatment; IVT, intravenous thrombolysis; NIHSS, National Institutes of Health Stroke Scale.