1. School of Sport, Exercise and Health Sciences, Loughborough University, United Kingdom (T.N., E.O., W.J.).
2. Centre for Global Child Health, The Hospital for Sick Children, Toronto, Canada (L.M.).
3. Leeds Institute for Data Analytics (M.S.G.), University of Leeds, United Kingdom.
4. Faculty of Medicine and Health (M.S.G.), University of Leeds, United Kingdom.
5. Alan Turing Institute, British Library, London, United Kingdom (M.S.G.).
6. Division of Surgery and Interventional Sciences, Faculty of Medical Sciences (M.H.), University College London, United Kingdom.
7. CLOSER (Cohort and Longitudinal Studies Enhancement Resources), Department of Social Science (R.H.), University College London, United Kingdom.
8. MRC (Medical Research Council) Integrative Epidemiology Unit at the University of Bristol, Department of Population Health Sciences, University of Bristol, United Kingdom (L.D.H.).
9. Institute of Cardiovascular Science (A.D.H.), University College London, United Kingdom.
10. Population, Policy and Practice Programme, Great Ormond Street Institute of Child Health (L.L., R.M.V.), University College London, United Kingdom.
11. Department of Social Science, Centre for Longitudinal Studies (G.B.P., R.J.S.), University College London, United Kingdom.
12. MRC Epidemiology Unit and Department of Paediatrics, University of Cambridge, United Kingdom (K.K.O.).