TY - JOUR TI - The World Federation of ADHD International Consensus Statement: 208 Evidence-based conclusions about the disorder AU - Stephen V. Faraone AU - Tobias Banaschewski AU - David Coghill AU - Yi Zheng AU - Joseph Biederman AU - Mark A. Bellgrove AU - Jeffrey H. Newcorn AU - Martin Gignac AU - Nouf Mohammed Al Saud AU - Iris Manor AU - Luís Augusto Rohde AU - Li Yang AU - Samuele Cortese AU - Doron Almagor AU - Mark A. Stein AU - Turki H. Albatti AU - Haya F. Al-Joudi AU - Mohammed M. J. Alqahtani AU - Philip Asherson AU - Lukoye Atwoli AU - Sven Bölte AU - Jan K. Buitelaar AU - Cleo L. Crunelle AU - David Daley AU - Søren Dalsgaard AU - Manfred Döpfner AU - Stacey D. Espinet AU - Michael Fitzgerald AU - Barbara Franke AU - Manfred Gerlach AU - Jan Haavik AU - Catharina A. Hartman AU - Cynthia M. Hartung AU - Stephen P. Hinshaw AU - Pieter J. Hoekstra AU - Chris Hollis AU - Scott H. Kollins AU - J. J. Sandra Kooij AU - Jonna Kuntsi AU - Henrik Larsson AU - Tingyu Li AU - Jing Liu AU - Eugene Merzon AU - Gregory W. Mattingly AU - Paulo Mattos AU - Suzanne McCarthy AU - Amori Yee Mikami AU - Brooke S. G. Molina AU - Joel T. Nigg AU - Diane Purper‐Ouakil AU - Olayinka Omigbodun AU - Guilherme V. Polanczyk AU - Yehuda Pollak AU - Alison Poulton AU - Ravi Philip Rajkumar AU - Andrew Reding AU - Andreas Reif AU - Katya Rubia AU - Julia J. Rucklidge AU - Marcel Romanos AU - Josep Antoni Ramos‐Quiroga AU - Arnt Schellekens AU - Anouk Scheres AU - Renata Schoeman AU - Julie B. Schweitzer AU - Henal Shah AU - Mary V. Solanto AU - Edmund Sonuga‐Barke AU - César A. Soutullo AU - Hans-Christoph Steinhausen AU - James M. Swanson AU - Anita Thapar AU - Gail Tripp AU - Geurt van de Glind AU - Wim van den Brink AU - Saskia Van der Oord AU - André Venter AU - Benedetto Vitiello AU - Susanne Walitza AU - Yufeng Wang PY - 2021 JO - Neuroscience & Biobehavioral Reviews DO - 10.1016/j.neubiorev.2021.01.022 UR - https://doi.org/10.1016/j.neubiorev.2021.01.022 AB - BACKGROUND: Misconceptions about ADHD stigmatize affected people, reduce credibility of providers, and prevent/delay treatment. To challenge misconceptions, we curated findings with strong evidence base. METHODS: We reviewed studies with more than 2000 participants or meta-analyses from five or more studies or 2000 or more participants. We excluded meta-analyses that did not assess publication bias, except for meta-analyses of prevalence. For network meta-analyses we required comparison adjusted funnel plots. We excluded treatment studies with waiting-list or treatment as usual controls. From this literature, we extracted evidence-based assertions about the disorder. RESULTS: We generated 208 empirically supported statements about ADHD. The status of the included statements as empirically supported is approved by 80 authors from 27 countries and 6 continents. The contents of the manuscript are endorsed by 366 people who have read this document and agree with its contents. CONCLUSIONS: Many findings in ADHD are supported by meta-analysis. These allow for firm statements about the nature, course, outcome causes, and treatments for disorders that are useful for reducing misconceptions and stigma. ER -