1 Nottingham Digestive Diseases Centre, School of Medicine, University of Nottingham, Nottingham, UK.
2 NIHR Nottingham Biomedical Research Centre (BRC), Nottingham University Hospitals NHS Trust and the University of Nottingham, Nottingham, UK.
3 Nottingham University Hospitals NHS Trust, Nottingham, UK.
4 Population and Lifespan Sciences, School of Medicine, University of Nottingham, Nottingham, UK.
5 East Midlands Academic Health Science Network, University of Nottingham, Nottingham, UK.
6 Division of Respiratory Medicine, School of Medicine, University of Nottingham, Nottingham, UK.
7 NIHR Nottingham Biomedical Research Centre (BRC), Nottingham University Hospitals NHS Trust and the University of Nottingham, Nottingham, UK [email protected].
Be aware that pulse oximeters overestimate oxygen saturation measurements in patients with hypoxaemia, and that this error is larger in individuals from black and Asian ethnic groupshttps://bit.ly/3fCeJP7