[1] University of Oxford,Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences
[2] Botnar Research Centre,Medical Statistics Group, ScHARR
[3] Nuffield Orthopaedic Centre,Health Services Research Unit
[4] The University of Sheffield,Department of Mathematics and Statistics
[5] University of Aberdeen,Statistical Methodology and Consulting
[6] Lancaster University,Department of Biostatistics and Health Informatics
[7] Novartis Pharma AG,Department of Health Sciences, Seebohm Rowntree Building
[8] Institute of Psychiatry,undefined
[9] Psychology and Neuroscience,undefined
[10] King ’ s College London,undefined
[11] University of York,undefined
[12] Clinical Epidemiology Program,undefined
[13] Ottawa Hospital Research Institute,undefined
[14] Johnson & Johnson,undefined
[15] One J&J Plaza,undefined
[16] Health Economics Group,undefined
[17] Institute of Health and Society,undefined
[18] Newcastle University,undefined
