Figure 3. Pooled Crude Odds Ratio (OR) Associated With the Proportions of Golden-Hour Intravenous Thrombolysis According to Treatment Group (Mobile Stroke Unit [MSU] Deployment vs Usual Care, Random-Effects Meta-analysis).

Results are expressed as number of patients treated with intravenous thrombolysis within 60 minutes of symptom onset divided by number of patients treated with intravenous thrombolysis in each treatment group. The test for heterogeneity between subgroups was P = .08. NA indicates not applicable.

^aPreviously unpublished (disentangled) data, excluding patients with stroke mimic in the study by Larsen et al.¹⁶ When including patients with stroke mimic, the crude OR for golden-hour thrombolysis in the study by Larsen et al¹⁶ was 4.62 (95% CI, 1.46-14.59). Furthermore, there was partial overlap in participants between the studies by Ebinger et al,³⁶ Kunz et al,³⁷ and Nolte et al.⁴²