Table 1. Distribution of NIHSS Scores by Patient Subgroups in the United States.
| Subgroup | No. | Median (IQR) | P Value |
|---|---|---|---|
| Age, y | |||
| <55 | 3015 | 3 (1-8) | <.001 |
| 55-79 | 12 110 | 4 (2-10) | |
| ≥80 | 6560 | 6 (2-16) | |
| Sex | |||
| Female | 10 925 | 5 (2-13) | <.001 |
| Male | 10 745 | 4 (2-10) | |
| Race/ethnicity | |||
| White | 15 205 | 4 (2-11) | .59 |
| African American | 3745 | 5 (2-11) | |
| Hispanic | 1495 | 5 (2-12) | |
| Asian/Pacific Islander | 650 | 5 (2-11) | |
| Othera | 590 | 5 (2-13) | |
| Reperfusion therapy | |||
| No reperfusion | 17 570 | 4 (2-9) | <.001 |
| Any IV thrombolysis | 3240 | 7 (4-14) | |
| IV thrombolysis without EVT | 2960 | 6 (4-12) | |
| IV thrombolysis + EVT | 280 | 17 (13-22) | |
| Any EVT | 1155 | 17 (12-22) | |
| EVT without IV thrombolysis | 875 | 17 (11-22) | |
| Region | |||
| Northeast | 4960 | 4 (2-10) | .12 |
| Midwest | 5215 | 5 (2-12) | |
| South | 8240 | 4.5 (2-11) | |
| West | 3270 | 5 (2-13) | |
| Hospital status | |||
| Rural | 860 | 4 (2-10) | .21 |
| Urban nonteaching | 4065 | 4 (2-10) | |
| Urban teaching | 16760 | 5 (2-12) | |
| Discharge status | |||
| Home | 7190 | 2 (1-5) | <.001 |
| Skilled nursing | 9625 | 7 (3-15) | |
| Died | 1230 | 19 (12-25) |
Abbreviations: EVT, endovascular thrombectomy; IQR, interquartile range; IV, intravenous; NIHSS, National Institutes of Health Stroke Scale.
a
Includes Native American.