**5. Conclusions**

An interprofessional OTI on strokes in the Catalonian EMS was effective in increasing the participants' knowledge on cerebrovascular medical emergencies. Both strengths and areas for improvement were detected for future training opportunities. This study had a positive long-term impact on prehospital compliance with the pre-notification system upon SC activation. This training intervention permitted the wide adoption of a new prehospital scale for the assessment of stroke severity (i.e., the RACE scale), reaching high notification compliance.

These results encouraged the Catalonian EMS to maintain this training intervention in their continuous education program, which, starting back in 2015, is delivered twice a year.

**Supplementary Materials:** The following are available online at http://www.mdpi.com/1660-4601/17/17/6183/s1, Figure S1: Summary table RACE Scale and Instructions to evaluate the RACE scale, S2: satisfaction survey, S3: knowledge-related multiple-choice questionnaire.

**Author Contributions:** Conceptualization, N.P.d.l.O. and F.X.J.-F.; methodology, M.G.-M., S.S.-M. and I.E.-P.; validation, M.G.-M., S.S.-M. and J.M.N.-A.; formal analysis, M.G.-M. and S.S.-M.; investigation, M.G.-M., D.C.-G. and M.Q.-G.; resources, N.P.; data curation, M.G.-M., S.S.-M. and I.E.-P.; writing—original draft preparation, M.G.-M. and I.E.-P.; writing—review and editing, I.E.-P. and S.S.-M.; visualization, M.G.-M.; supervision, N.P.d.l.O. and F.X.J.-F.; project administration, N.P.d.l.O. and F.X.J.-F.; funding acquisition, N.P.d.l.O. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research was funded by the Spanish Ministry of Health, Instituto de Salud Carlos III (Fondo de Investigación En Salud), gran<sup>t</sup> number PI13/02041.

**Conflicts of Interest:** The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of the data; in the writing of the manuscript, or in the decision to publish the results.
