Derivation of the Difficult Airway Physiological Score (DAPS) in adults undergoing endotracheal intubation in the emergency department.

"Declarations Ethics approval and consent to participateThis study was conducted considering the principles of ethics under the “Declaration of Helsinki.” Each participant was assigned a unique research ID, which was indicated at the start of the questionnaire, to safeguard their confidentiality. This study was approved by the Ethical Review Committee (ERC) of Aga Khan University (ERC number 2020-4975-14778). Informed consent from the patients was exempted by Ethical Review Committee of Aga Khan University because this study was retrospective, and we used de-identified information that does not affect the welfare and rights of the patients. Consent to publishNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding Research reported in this publication was supported by the Fogarty International Center of the National Institutes of Health under Award Number D43TW007292 - the Aga Khan University Trauma and injury research training program. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health."