scholarly journals Estimating Disability-Adjusted Life Years (DALYs) in Community Cases of Norovirus in England

Viruses ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 184
Author(s):  
John P Harris ◽  
Miren Iturriza-Gomara ◽  
Sarah J O’Brien

Disability adjusted life years (DALYs) have been used since the 1990s. It is a composite measure of years of life lost with years lived with disability. Essentially, one DALY is the equivalent of a year of healthy life lost if a person had not experienced disease. Norovirus is the most common cause of gastrointestinal diseases worldwide. Norovirus activity varies from one season to the next for reasons not fully explained. Infection with norovirus is generally not severe, and is normally characterized as mild and self-limiting with no long-term sequelae. In this study, we model a range of estimates of DALYs for community cases of norovirus in England and Wales. We estimated a range of DALYs for norovirus to account for mixing of the severity of disease and the range of length of illness experienced by infected people. Our estimates were between 1159 and 4283 DALYs per year, or 0.3–1.2 years of healthy life lost per thousand cases of norovirus. These estimates provide evidence that norovirus leads to a considerable level of ill health in England and Wales. This information will be helpful should candidate norovirus vaccines become available in the future.

2021 ◽  
Vol 50 (Supplement_1) ◽  
Author(s):  
Lynelle Moon ◽  
Anna Reynolds ◽  
Michelle Gourley

Abstract Background During 2020, there were nearly 28,500 cases of COVID-19 in Australia. Burden of disease estimates for COVID-19 have not been calculated for the Australian population. Burden of disease data on COVID-19 provide valuable information on the impact of the disease, including both fatal and non-fatal effects. Methods Burden of disease is measured using the summary measure disability-adjusted life years (DALYs). One DALY is 1 year of ‘healthy life’ lost due to illness (Years Lived with Disability) and/or death (Years of Life Lost)—the more DALYs associated with a disease or injury, the greater the burden. The analysis draws on Australian deaths, incidence and severity, as well as methods and other inputs developed in other countries reflecting current understanding about this new disease. Results There were over 8,300 DALYs lost due to COVID-19 in 2020 in Australia; 97% of the disease burden arose from fatal cases. Males lost an average of 10.7 years, and females 8.1 years, due to dying from COVID-19, using an aspirational life expectancy. The burden of disease estimates for Australia for COVID-19 are much lower than the leading diseases causing burden. Conclusions The relatively low burden for COVID-19 in Australia in 2020 compared to other diseases and other countries reflects the success Australia had in containing the virus. Key messages Most of the burden due to COVID-19 in Australia was fatal. Burden of disease estimates for COVID-19 in Australia for 2020 are much lower than the leading diseases.


Author(s):  
João Costa ◽  
Joana Alarcão ◽  
Francisco Araujo ◽  
Raquel Ascenção ◽  
Daniel Caldeira ◽  
...  

Abstract Aims This article sought to estimate the burden of disease attributable to atherosclerosis in mainland Portugal in 2016. Methods and results The burden of atherosclerosis was measured in disability-adjusted life years following the latest 2010 Global Burden of Disease (GBD) methodology. Disability-adjusted life years were estimated as the sum of years of life lost (YLL) with years lived with disability (YLD). The following clinical manifestations of atherosclerosis were included: ischaemic heart disease (IHD) (including acute myocardial infarction, stable angina, and ischaemic heart failure), ischaemic cerebrovascular disease (ICVD), and peripheral arterial disease (PAD). Years of life lost were estimated based on all-cause mortality data for the Portuguese population and mortality due to IHD, ICVD, and PAD for the year 2016 sourced from national statistics. Standard life expectancy was sourced from the GBD study. Years lived with disability corresponded to the product of the number of prevalent cases by an average disability weight for all possible combinations of disease. Prevalence data for the different clinical manifestations of atherosclerosis were sourced from epidemiological studies. Disability weights were sourced from the published literature. In 2016, 15 123 deaths were attributable to atherosclerosis, which corresponded to 14.3% of overall mortality in mainland Portugal. Disability-adjusted life years totalled 260 943, 75% due to premature death (196 438 YLL) and 25% due to disability (64 505 YLD). Conclusion Atherosclerosis entails a high disease burden to society. A large part of this burden would be avoidable if evidence-based effective and cost-effective interventions targeting known risk factors, from prevention to treatment, were implemented.


2015 ◽  
Vol 49 (0) ◽  
Author(s):  
Luísa Sorio Flor ◽  
Monica Rodrigues Campos ◽  
Andreia Ferreira de Oliveira ◽  
Joyce Mendes de Andrade Schramm

OBJECTIVE To estimate the burden of type 2 diabetes mellitus and its percentage attributable to overweight and obesity in Brazil.METHODS The burden of diabetes mellitus was described in terms of disability-adjusted life years, which is the sum of two components: years of life lost and years lived with disability. To calculate the fraction of diabetes mellitus attributable to overweight, obesity, and excess weight, we used the prevalence of these risk factors according to sex and age groups (> 20 years) obtained from the 2008 Pesquisa Dimensões Sociais das Desigualdades (Social Dimensions of Inequality Survey) and the relative risks derived from the international literature.RESULTS Diabetes mellitus accounted for 5.4% of Brazilian disability-adjusted life years in 2008, with the largest fraction attributed to the morbidity component (years lived with disability). Women exhibited higher values for disability-adjusted life years. In Brazil, 49.2%, 58.3%, and 70.6% of diabetes mellitus in women was attributable to overweight, obesity, and excess weight, respectively. Among men, these percentages were 40.5%, 45.4%, and 60.3%, respectively. Differences were observed with respect to Brazilian regions and age groups.CONCLUSIONS A large fraction of diabetes mellitus was attributable to preventable individual risk factors and, in about six years, the contribution of these factors significant increased, particularly among men. Policies aimed at promoting healthy lifestyle habits, such as a balanced diet and physical activity, can have a significant impact on reducing the burden of diabetes mellitus in Brazil.


PLoS ONE ◽  
2021 ◽  
Vol 16 (8) ◽  
pp. e0256758
Author(s):  
Sandra Milena Porras Cataño ◽  
Hugo Grisales-Romero

Objective Determine the loss of years of healthy life due to road incidents of motorcyclists in the city of Medellin from 2012 to 2015. Methods Descriptive study with data on health care of injured motorcyclists and deaths adjusted with the Preston and Coale method, and OPS proportional distribution for the period 2012–2015. The years of life lost due to premature death (YLLs), years lived with disability (YLDs), and the disability-adjusted life years (DALYs) were calculated according to the new methodology designed for that purpose. Results The loss of years of healthy life due to road incidents of motorcyclists in the four-year period was 80,046 DALYs (823.8 per 100,000 inhabitants), with a higher proportion in men (81.3% and a ratio of 5 to 1 compared to women); the YLDs was 66.6% with marked differences in favor of men. There was nearly a 38% difference in the ages of 15 to 19 as well as a 19% difference from 30 to 49, compared to women. Premature death (YLLs) contributed to 33.4% of DALYs, with significant presentation in the above-mentioned age groups. Conclusions The greatest loss of years of healthy life due to road incidents of motorcyclists in Medellin was due to non-fatal injuries and was concentrated in young men. If the trend of motorcycle road incidents continues, both local and national road safety plans will fail to accomplish the expected results, especially among motorcycle users.


2015 ◽  
Vol 20 (2) ◽  
pp. 491-501 ◽  
Author(s):  
Flávia Batista Portugal ◽  
Mônica Rodrigues Campos ◽  
Juliana Ribeiro de Carvalho ◽  
Luisa Sório Flor ◽  
Joyce Mendes de Andrade Schramm ◽  
...  

O uso/dependência de álcool é importante fator de risco para o desenvolvimento da cirrose. O objetivo deste artigo é descrever e analisar o DALY (Disability Adjusted Life Years), o YLL (Years of Life Lost) e o YLD (Years Lived with Disability) de uso/dependência de álcool e da cirrose de etiologia não viral no Brasil, em 2008. O DALY foi calculado pela soma do YLL e do YLD. Para o YLL, foi utilizada a média dos óbitos de 2007-2009 no país. Através da revisão de dados epidemiológicos e do uso da ferramenta DisMod, a prevalência de cada um dos agravos foi modelada, gerando dados de incidência para o cálculo do YLD. O álcool e a cirrose foram responsáveis, respectivamente, por 3% e 1% do DALY total. Considerando-se as dez primeiras causas de DALY para homens, o uso/ dependência de álcool ocupou a segunda, terceira e sexta posições nas idades de 15-29, 30-44 e 45-59 anos, respectivamente. A cirrose ocupou a oitava posição no grupo de 30-44 anos; a quinta, no de 45-59 e a oitava, no de 60-69. A distribuição dos agravos por faixa etária sugere que intervenções direcionadas ao uso/dependência de álcool terão efeitos na carga de cirrose alcoólica no país.


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