Effect of the COVID-19 pandemic on advanced life support units' prehospital management of the stroke code in four Spanish regions: an observational study.

"Declarations Competing interestsNicolas Riera Lopez: The author has received payments as Advanced Stroke Life Support teachers from the Angels Initiative (Boheringer Ingelheim). He do not declare other conflicts of interest.Francisco Aranda Aguilar: The author has received payments as Advanced Stroke Life Support teachers from the Angels Initiative (Boheringer Ingelheim). He do not declare other conflicts of interest.Montse Gorchs-Molist: The author has received payments as Advanced Stroke Life Support teachers from the Angels Initiative (Boheringer Ingelheim). She do not declare other conflicts of interest.Jose Antonio Iglesias Vazquez: The author has received payments as Advanced Stroke Life Support teachers from the Angels Initiative (Boheringer Ingelheim). He do not declare other conflicts of interest. Ethics approval and consent to participateAll methods were carried out in accordance with relevant guidelines and regulations. All data was processed following the European Data Protection Regulation 2016/679. The Research Ethics Committee of Santiago-Lugo, at its meeting on May 23, 2021, issued a favourable opinion of the protocol of the study, and authorized the exemption of informed consent. Consent for publicationNot applicable. Competing interests Nicolas Riera Lopez: The author has received payments as Advanced Stroke Life Support teachers from the Angels Initiative (Boheringer Ingelheim). He do not declare other conflicts of interest.Francisco Aranda Aguilar: The author has received payments as Advanced Stroke Life Support teachers from the Angels Initiative (Boheringer Ingelheim). He do not declare other conflicts of interest.Montse Gorchs-Molist: The author has received payments as Advanced Stroke Life Support teachers from the Angels Initiative (Boheringer Ingelheim). She do not declare other conflicts of interest.Jose Antonio Iglesias Vazquez: The author has received payments as Advanced Stroke Life Support teachers from the Angels Initiative (Boheringer Ingelheim). He do not declare other conflicts of interest."

"Funding Nicolás Riera López: Funded by the Foundation for Biosanitary Research and Innovation in Primary Care (FIIBAP) and the Regional Ministry of Health of the Community of Madrid through non-refundable grants from the credits awarded to the Community of Madrid by the Spanish Government Fund COVID-19, included in Order HAC/667/2020.)."