Table 4.

Logistic regression models showing the association between emergency medical services training and acute stroke care performance measure and hospital-based outcomes.

Outcome	Unadjusted	Adjusted†
	OR (95% CI)	OR (95% CI)
EMS recognized stroke patients	1.0 (0.7–1.4)	1.0 (0.7–1.4)‡
(sensitivity)
PPV for identification of	1.6 (1.1–2.2) *	1.6 (1.1–2.4) *
stroke patients
Onset-to-door time ≤ 90 min	1.4 (1.0–2.1)	1.6 (1.1–2.5)‡*
Door-to-CT time ≤ 30 min	1.0 (0.4–2.9)	0.8 (0.3–2.4)
IVT rate	1.1 (0.7–1.6)	1.1 (0.7–1.6)
Door-to-needle time ≤ 30 min	1.5 (0.7–3.5)	1.5 (0.6–3.5)
In-hospital mortality	0.6 (0.3–1.0)	0.6 (0.4–1.1)‡

OR, odds ratio; CI, confidence interval; PPV, positive predictive value; CT, computed tomography; IVT, intravenous thrombolysis.

^†Adjusted for age, gender, and EMS location (urban vs. suburban).

^‡Adjusted for age, gender, EMS location, and stroke type.

*P <0.05.