Queen Mary University of London - Institute of Population Health Sciences, Queen Mary University of London - Institute of Population Health Sciences, Queen Mary University of London - Institute of Population Health Sciences, Queen Mary University of London - Institute of Population Health Sciences, Queen Mary University of London - Institute of Population Health Sciences, Jane Symons Media, Queen Mary University of London - Institute of Population Health Sciences, King’s College London - Institute of Psychiatry, Psychology & Neuroscience (IoPPN), Queen Mary University of London - Institute of Population Health Sciences, Queen Mary University of London - Institute of Population Health Sciences, Queen Mary University of London - Institute of Population Health Sciences, Queen Mary University of London - Institute of Population Health Sciences, Queen Mary University of London - Institute of Population Health Sciences, Queen Mary University of London - Institute of Population Health Sciences, Queen Mary University of London - Institute of Population Health Sciences, London School of Hygiene & Tropical Medicine - Department of Health Services Research and Policy, Imperial College London - National Heart and Lung Institute, Independent, Queen Mary University of London - Institute of Population Health Sciences, Queen Mary University of London - Institute of Population Health Sciences, Swansea University - Swansea University Medical School, Swansea University - Population Data Science, Queen Mary University of London - Asthma UK Centre for Applied Research, Queen's University Belfast, University of Edinburgh - Usher Institute, King’s College London - Institute of Psychiatry, Psychology & Neuroscience (IoPPN), Queen Mary University of London - Institute of Population Health Sciences, Queen Mary University of London - Barts and The London School of Medicine and Dentistry, King’s College London - Institute of Psychiatry, Psychology & Neuroscience (IoPPN) and King’s College London - Institute of Psychiatry, Psychology & Neuroscience (IoPPN)

affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Independent, Utrecht University - Julius Center for Health Sciences and Primary Care, Queen Mary University of London - Institute of Population Health Sciences, Utrecht University - University Medical Center (Utrecht) and Utrecht University - University Medical Center (Utrecht)