[1] Univ Bristol, Sch Psychol Sci, Bristol, Avon, England
[2] Univ Bristol, Bristol Med Sch, Populat Hlth Sci, Hlth Econ Bristol, Bristol, Avon, England
[3] Univ Hosp Bristol NHS Fdn Trust, Natl Inst Hlth Res Appl Res Collaborat West NIHR, Bristol, Avon, England
[4] Univ Essex, Dept Math Sci, Colchester, Essex, England
[5] Helwan Univ, Dept Appl Stat, Helwan, Egypt
[6] Univ Nacl Colombia, Dept Psicol, Bogota, Colombia
[7] Univ Bath, Dept Psychol, Bath, Avon, England
[8] Univ Bristol, MRC Integrat Epidemiol Unit, Bristol, Avon, England
[9] Univ Bristol, Bristol Med Sch, Populat Hlth Sci, Hlth Econ Bristol,NIHR ARC West Hlth Econ, 9th Floor, Bristol BS1 2NT, Avon, England