Funding for this research was provided by:
Please see manuscript
Received: 31 January 2021
Accepted: 7 July 2021
First Online: 9 August 2021
: The study protocol was approved by all local institutional review boards. Written or verbal informed consent was obtained in a manner consistent with the regulations of each country. Details of the ethics committees for the WMH surveys can be viewed at this link: ExternalRef removed. They are:Bioethics Committee, School of Medicine, University of Buenos Aires (Argentina); the authority of Census and Statistics Act, 1905 (Australia); Ethics Committee of the Institute of Public Health (Federal Public Service Health, Food Chain Safety, and Environment) (Belgium); Research and Ethics Committee of the School of Medicine, University of Sao Paulo (Brazil);Deputy Minister and head of the Executive Committee of the National Psychiatric Program (Bulgaria); Ethical committee of the National Center of Public Health and Analyses (Bulgaria); Ethics Committee for the FES Social Foundation (Colombia); Comité Institucional de Ética Universidad CES (Colombia-Medellin); Committee of the CNIL - Commission Nationale Informatique et Libertés (France): Germany Ethics Committee of the University of Leipzig (Germany); Ethics Scientific Committee of the Ministry of Health Iraq (Iraq); Human Subjects Committee for survey and field procedures in Eitanim-Kfar Shaul Hospital (Israel); Italy Italian National Institute of Health (Italy); National Center of Neurology and Psychiatry; Okayama University School of Medicine; Nagasaki University School of Medicine; Keio University School of Medicine; Jichi University School of Medicine; Juntendo University School of Medicine; Yamagata University School of Medicine (Japan); University of Balamand Faculty of Medicine Institutional Review Board (Lebanon); Ethics committee in research of the National Institute of Psychiatry Ramon de la Fuente Muñiz (Mexico); Ethics Committee of the Netherlands Institute of Mental Health and Addiction (Netherlands); New Zealand Health Ethics Committees (New Zealand); University of Ulster Ethics Committee (Northern Ireland); Peru National Institute of Health Peru (Peru); Komisja Bioetyczna (Bioethical Committee) of Instytut Psychiatrii i Neurologi (Poland); Ethics Committee, Faculdade de Ciencias Médicas, Universidade Nova (Portugal); Office of Research Affairs at King Faisal Specialist Hospital and Research Center (Saudia Arabia); Ethical Committee of Sant Joan de Deu Serveis de Salut Mental and Ethical Committee of IMIMHospital del Mar Medical Research Institute (Spain-Murcia); The Clinical Research Ethics Committee of the University Hospital Virgen de la Arrixaca of Murcia (Spain); Human Subjects Committees of the Institute for Social Research at the University of Michigan and of Harvard Medical School (USA)
: Not applicable.
: In the past 3 years, RCK reports being a consultant for Datastat, Inc., RallyPoint Networks, Inc., Sage Pharmaceuticals, and Takeda. FNM reports non-financial support from Otsuka outside and not related to the submitted work. In the past 3 years LD has received untied educational grant funding from Indivior and Seqirus, not related to the submitted work. DJS has received research grants and/or honoraria from Lundbeck, Johnson & Johnson, Servier and Takeda. The remaining authors declare that they have no competing interests.