TY - JOUR TI - Global, regional, and national burden of Parkinson's disease, 1990–2016: a systematic analysis for the Global Burden of Disease Study 2016 AU - E. Ray Dorsey AU - Alexis Elbaz AU - Emma Nichols AU - Nooshin Abbasi AU - Foad Abd-Allah AU - Ahmed Abdelalim AU - José Carmelo Adsuar AU - Mustafa Geleto Ansha AU - Carol Brayne AU - Jee-Young Jasmine Choi AU - Daniel Collado‐Mateo AU - Nabila Dahodwala AU - Huyen Phuc AU - Dumessa Edessa AU - Matthias Endres AU - Seyed‐Mohammad Fereshtehnejad AU - Kyle J Foreman AU - Fortuné Gbètoho Gankpé AU - Rahul Gupta AU - Samer Hamidi AU - Graeme J. Hankey AU - Simon I Hay AU - Mohamed Hegazy AU - Desalegn Tsegaw Hibstu AU - Amir Kasaeian AU - Yousef Khader AU - Ibrahim Khalil AU - Young‐Ho Khang AU - Yun Jin Kim AU - Yoshihiro Kokubo AU - Giancarlo Logroscino AU - João Massano AU - Norlinah Mohamed Ibrahim AU - Mohammed A. Mohammed AU - Alireza Mohammadi AU - Maziar Moradi‐Lakeh AU - Mohsen Naghavi AU - Binh Thanh Nguyen AU - Yirga Legesse Nirayo AU - Felix Akpojene Ogbo AU - Mayowa Owolabi AU - David M. Pereira AU - Maarten J. Postma AU - Mostafa Qorbani AU - Muhammad Aziz Rahman AU - Kedir Teji Roba AU - Hosein Safari AU - Saeid Safiri AU - Maheswar Satpathy AU - Monika Sawhney AU - Azadeh Shafieesabet AU - Mekonnen Sisay Shiferaw AU - Mari Smith AU - Cassandra Szoeke AU - Rafael Tabarés‐Seisdedos AU - Nu Thi Truong AU - Kingsley Nnanna Ukwaja AU - Narayanaswamy Venketasubramanian AU - Santos Villafaina AU - Kidu gidey weldegwergs AU - Ronny Westerman AU - Tissa Wijeratne AU - Andrea Sylvia Winkler AU - Bach Tran Xuan AU - Naohiro Yonemoto AU - Valery L. Feigin AU - Theo Vos AU - Christopher J L Murray PY - 2018 JO - The Lancet Neurology DO - 10.1016/s1474-4422(18)30295-3 UR - https://doi.org/10.1016/s1474-4422(18)30295-3 AB - BACKGROUND: Neurological disorders are now the leading source of disability globally, and ageing is increasing the burden of neurodegenerative disorders, including Parkinson's disease. We aimed to determine the global burden of Parkinson's disease between 1990 and 2016 to identify trends and to enable appropriate public health, medical, and scientific responses. METHODS: Through a systematic analysis of epidemiological studies, we estimated global, regional, and country-specific prevalence and years of life lived with disability for Parkinson's disease from 1990 to 2016. We estimated the proportion of mild, moderate, and severe Parkinson's disease on the basis of studies that used the Hoehn and Yahr scale and assigned disability weights to each level. We jointly modelled prevalence and excess mortality risk in a natural history model to derive estimates of deaths due to Parkinson's disease. Death counts were multiplied by values from the Global Burden of Disease study's standard life expectancy to compute years of life lost. Disability-adjusted life-years (DALYs) were computed as the sum of years lived with disability and years of life lost. We also analysed results based on the Socio-demographic Index, a compound measure of income per capita, education, and fertility. FINDINGS: In 2016, 6·1 million (95% uncertainty interval [UI] 5·0-7·3) individuals had Parkinson's disease globally, compared with 2·5 million (2·0-3·0) in 1990. This increase was not solely due to increasing numbers of older people, because age-standardised prevalence rates increased by 21·7% (95% UI 18·1-25·3) over the same period (compared with an increase of 74·3%, 95% UI 69·2-79·6, for crude prevalence rates). Parkinson's disease caused 3·2 million (95% UI 2·6-4·0) DALYs and 211 296 deaths (95% UI 167 771-265 160) in 2016. The male-to-female ratios of age-standardised prevalence rates were similar in 2016 (1·40, 95% UI 1·36-1·43) and 1990 (1·37, 1·34-1·40). From 1990 to 2016, age-standardised prevalence, DALY rates, and death rates increased for all global burden of disease regions except for southern Latin America, eastern Europe, and Oceania. In addition, age-standardised DALY rates generally increased across the Socio-demographic Index. INTERPRETATION: Over the past generation, the global burden of Parkinson's disease has more than doubled as a result of increasing numbers of older people, with potential contributions from longer disease duration and environmental factors. Demographic and potentially other factors are poised to increase the future burden of Parkinson's disease substantially. FUNDING: Bill & Melinda Gates Foundation. ER -