Table 3.
Patient‐ and Hospital‐Level Characteristics Associated With EMS Prenotification for Patients Arriving Within 4.5 Hours With Complete NIHSS Data (N=90 135)
| Adjusted Odds Ratio | 95% Confidence Interval | P | |
|---|---|---|---|
| Age (per 10 y) | 0.99 | 0.98–0.99 | 0.005 |
| Female (vs male) | 1.00 | 0.97–1.02 | 0.67 |
| Race/ethnicity (reference non‐Hispanic white) | |||
| Black | 0.89 | 0.85–0.93 | <0.0001 |
| Hispanic | 1.00 | 0.95–1.05 | 0.95 |
| Asian | 0.90 | 0.83–0.97 | 0.008 |
| Other | 0.90 | 0.81–0.99 | 0.03 |
| Medical history | |||
| Atrial fibrillation/flutter | 1.00 | 0.97–1.03 | 0.88 |
| Previous stroke/TIA | 0.98 | 0.95–1.01 | 0.12 |
| Diabetes mellitus | 0.98 | 0.96–1.01 | 0.20 |
| Peripheral vascular disease | 0.94 | 0.89–0.99 | 0.03 |
| Annual tPA volume (reference ≥21 patients/y) | |||
| 0–10 | 0.83 | 0.65–1.06 | 0.14 |
| 11–20 | 1.15 | 0.86–1.55 | 0.34 |
| NIHSS (per 5 units) | 1.05 | 1.04–1.06 | <0.001 |
| Academic center | 0.69 | 0.59–0.82 | <0.001 |
| Region (reference Northeast) | |||
| West | 2.18 | 1.68–2.84 | <0.0001 |
| South | 1.31 | 1.07–1.61 | 0.01 |
| Midwest | 1.52 | 1.22–1.89 | 0.0002 |