REFERENCES
1 Karagiannidis C., Mostert C., Hentschker C., et al. (2020) Case characteristics, resource use, and outcomes of 10 021 patients with COVID-19 admitted to 920 German hospitals: an observational study.Lancet Respir. Med. 0 .
2 Docherty A.B., Harrison E.M., Green C.A., et al. (2020) Features of 20 133 UK patients in hospital with covid-19 using the ISARIC WHO Clinical Characterisation Protocol: Prospective observational cohort study. BMJ 369 .
3 Givi B., Schiff B.A., Chinn S.B., et al. (2020) Safety Recommendations for Evaluation and Surgery of the Head and Neck during the COVID-19 Pandemic. JAMA Otolaryngol. - Head Neck Surg.146 , 579–584.
4 Michetti C.P., Burlew C.C., Bulger E.M., et al. (2020) Performing tracheostomy during the Covid-19 pandemic: Guidance and recommendations from the Critical Care and Acute Care Surgery Committees of the American Association for the Surgery of Trauma. Trauma Surg. Acute Care Open 5 .
5 McGrath B.A., Brenner M.J., Warrillow S.J., et al. (2020) Tracheostomy in the COVID-19 era: global and multidisciplinary guidance.Lancet Respir. Med. 8 , 717–725.
6 Schultz M.J., Teng M.S. & Brenner M.J. (2020) Timing of tracheostomy for patients with Covid-19 in the ICU-setting precedent in unprecedented times. JAMA Otolaryngol. - Head Neck Surg. 146 , 887–888.
7 Lamb C.R., Desai N.R., Angel L., et al. (2020) Use of Tracheostomy During the COVID-19 Pandemic: American College of Chest Physicians/American Association for Bronchology and Interventional Pulmonology/Association of Interventional Pulmonology Program Directors Expert Panel Report. Chest 158 , 1499–1514.
8 Takhar A., Tornari C., Amin N., et al. (2020) Safety and outcomes of percutaneous tracheostomy in coronavirus disease 2019 pneumonitis patients requiring prolonged mechanical ventilation.J. Laryngol. Otol. 134 , 961–970.
9 Rovira A., Dawson D., Walker A., et al. (2020) Tracheostomy care and decannulation during the COVID-19 pandemic. A multidisciplinary clinical practice guideline. Eur. Arch. Oto-Rhino-Laryngology278 .
10 Breik O., Nankivell P., Sharma N., et al. (2020) Safety and 30-day outcomes of tracheostomy for COVID-19: a prospective observational cohort study. Br. J. Anaesth. 125 , 872–879.
11 Hamilton N.J.I., Jacob T., Schilder A.G.M., et al. (2020) COVIDTrach; the outcomes of mechanically ventilated COVID-19 patients undergoing tracheostomy in the UK: Interim Report. Br. J. Surg.107 , e583–e584.
12 NHS Digital (2013) Information Standard Board for Health and Social Care. Anonymisation Standard for Publishing Health and Social Care Data Specification (Process Standard) London, UK.
13 Navaratnam A. V, Gray W.K., Day J., et al. (2021) Patient factors and temporal trends associated with COVID-19 in-hospital mortality in England: an observational study using administrative data.