Lars Jacob Stovner|Mohammed Al Jumah|Gretchen L. Birbeck|G Gururaj|Rigmor Højland Jensen|Zaza Katsarava|Luiz Paulo Queiroz|Ann I. Scher|Redda Tekle?Haimanot|Shuu Jiun Wang|Timothy J. Steiner
The methodology of population surveys of headache prevalence, burden and cost: Principles and recommendations from the Global Campaign against Headache
Norwegian University of Science and Technology|St Olav's University Hospital|King Saud bin Abdulaziz University for Health Sciences|National Guard Health Affairs|King Abdullah International Medical Research Center|University of Rochester|National Institute of Mental Health and Neurosciences|Glostrup Hospital|University of Copenhagen|Universidade Federal de Santa Catarina|Uniformed Services University of the Health Sciences|Addis Ababa University|Taipei Veterans General Hospital|Imperial College London
global burden headache large knowledge far complete needs still gathered published populationbased studies used variable methodology influenced findings made comparisons difficult among initiatives global campaign headache improve standardize methods use crosssectional studies important production consensusbased methodological guidelines report describes development detailed principles recommendations purpose brought together expert consensus group include experience competence headache epidemiology andor epidemiology general drawn six world regions recommendations presented anyone whatever background interests designing performing understanding assessing studies measure describe burden headache populations aimed principally researchers whose main interests field headache also useful least parts expert public health epidemiology wish extend interest field headache disorders recommendations seek encourage collaborations specialists headache disorders epidemiologists focus migraine tensiontype headache medicationoveruse headache intended exclusive burdens arising secondary headaches majority cases correctly attributed underlying disorders nevertheless principles outlined relevant epidemiological studies secondary headaches provided adequate definitions given also applied questionnaires survey instruments