Years Of Life Lost Research Articles

Burden of Parkinson's disease in Central Asia from 1990 to 2021: findings from the Global Burden of Disease study.

Central Asia is known to face various ecological challenges that constitutes major risk factors for Parkinson's disease (PD). This study examines the burden of PD in Central Asia, a region where data on neurological disorders is notably sparse. Building on the latest Global Burden of Disease Study (GBD 2021), this study investigates the Years of Life Lost (YLLs), Years Lived with Disability (YLDs), and Disability-Adjusted Life Years (DALYs) associated with PD in Central Asia and its countries from 1990 to 2021. The authors calculated average annual percent change (AAPC) to analyze trends, and compared individual country estimates to global figures. Additionally, incorporating data from the World Bank, both Bayesian hierarchical and non-hierarchical frequentist regression models were employed to assess their impact on DALYs. The DALYs varied across the study period, primarily driven by YLLs. While YLLs showed a uniform trend, YLDs were mostly incremental. Kazakhstan had the highest estimates across all metrics and was the only country aligned with global patterns. Age- and sex-specific estimates revealed substantial variations, with notably high figures found in male subjects from Tajikistan. The YLLs, YLDs, and DALYs for Kazakhstan, Uzbekistan, and Turkmenistan saw a significant increase in AAPCs. In contrast, Kyrgyzstan and Tajikistan saw declines, likely attributable to civic conflict and inter-country differences in population structure. Further comparison of DALY trends revealed significant deviations for all countries from the global pattern. This study showed an overall increase in PD burden from 1990 to 2021. These findings underscore the need for targeted strategies to reduce PD burden, with a particular focus on Kazakhstan. Integrating historical information is crucial for discussing the plausible mechanisms in studies sourced from the GBD.

Abstract 4117645: Ischemic Heart Disease Trends in Canada: A 30-Year Epidemiological Study

Introduction: Ischemic heart disease (IHD) results from coronary artery blockages that impede myocardial blood flow. We aim to examine the temporal trends of IHD in Canada from 1990 to 2019, assessing age-standardized mortality, disability-adjusted life years (DALYs), and other health indicators. Methods: We analyzed data from the 2019 Global Burden of Disease study on Canadian IHD cases over three decades. The study investigated age-standardized deaths, DALYs, years lived with disability (YLDs), years of life lost (YLLs), prevalence, and incidence across both sexes. We performed statistical analyses using Microsoft Excel 16.63.1. Results: Over the period from 1990 to 2019, Canadian men and women experienced notable decreases in IHD incident rates [-45.11%], overall mortality [-60.64%], YLLs [-62.824%], prevalence [-26.778%], YLDs [-48.729%], and DALYs [-50.467%]. Detailed analysis revealed a reduction in death rates by 61.311% in men and 61.119% in women, while YLLs decreased by 63.115% for men and 63.808% for women. Similarly, DALYs showed a decline of 62.67% for men and 63.25% for women. Prevalence rates fell by 25.417% in women and 29.594% in men, whereas YLDs decreased by 51.148% for women and 49.172% for men. The 2019 data confirmed a per 100,000 population count of 48.78 YLDs, 1020.28 YLLs, and 1069.06 DALYs across both sexes. Conclusions: This study illustrates a significant decrease in ischemic heart disease (IHD) metrics in Canada from 1990 to 2019, highlighting notable reductions in mortality, prevalence, and disability rates among both genders. The findings underscore the effectiveness of healthcare improvements and public health initiatives and IHD. Despite these advancements, IHD continues to pose a substantial health challenge, indicating the need for ongoing efforts in medical care, policy-making, and lifestyle modifications to further alleviate the disease's burden in Canada.

Impact of high body mass index on gallbladder and biliary tract cancer burden in China: a comprehensive analysis of trends from 1990 to 2021.

Gallbladder and biliary tract cancer (GBTC) is a significant health burden in China, exacerbated by the rising prevalence of high body mass index (BMI). Understanding the trends and factors contributing to mortality and disability associated with GBTC is crucial for targeted public health interventions. We utilized data from the Global Burden of Disease (GBD) Study to assess the burden of GBTC attributable to high BMI in China from 1990 to 2021. Age-standardized rates of deaths, disability-adjusted life years (DALYs), years lived with disability (YLDs), and years of life lost (YLLs) were analyzed. Joinpoint regression and decomposition analyses were conducted to evaluate trends and identify contributing factors, including aging, population growth, and epidemiological changes. Gender-specific differences were also assessed. In 2021, GBTC deaths attributable to high BMI in China reached 4,053, with males experiencing a higher overall burden than females, particularly in older age groups. While females showed a higher mortality and overall burden in the 60 to 79 age range, this trend reversed in older age brackets, with males experiencing steeper increases in mortality and disability-related indicators beyond age 80. The age-standardized DALYs rate mirrored this pattern, with higher rates in males in advanced age groups. From 1990 to 2021, China saw a steady increase in GBTC burden attributable to high BMI, contrasting with a global decline. Joinpoint analysis indicated marked rises in mortality and DALYs rates after 2005, especially in males. Decomposition analysis identified population growth and aging as major drivers of increased deaths, while epidemiological changes primarily contributed to rising DALYs, with a stronger impact observed in males. The burden of GBTC attributable to high BMI in China has increased substantially over the last three decades, driven by population growth, aging, and epidemiological shifts. The trends highlight a growing gender disparity, with males experiencing a greater rise in mortality and disability. Public health strategies targeting obesity and metabolic risk factors are critical to mitigating the increasing GBTC burden.

Excess mortality and life-years lost in people diagnosed with depression: A 20-year population-based cohort study of 126,573 depressed individuals followed for 1,139,073 persons-years

Depression is associated with premature mortality, but evidence is mainly derived from Western countries. Very limited research has evaluated shortened lifespan in depression using life-years-lost (LYLs), a recently developed mortality metric taking into account the illness onset for life expectancy estimation. Temporal trends of differential mortality gap are understudied. This population-based cohort study, which utilized a territory-wide medical-record database of public inpatient and outpatient healthcare services in Hong Kong, evaluated the extent of premature mortality in 126,573 individuals with depression (persons-years=1,139,073) between January 2002 and December 2021 regarding the standardized mortality ratio (SMR) and excess LYLs. Trends in annual SMRs over 20 years were assessed by joinpoint analyses. The results showed that individuals with depression exhibited significantly higher all-cause (SMR=1.84 [95% CI=1.82–1.88]), natural-cause (1.69 [1.66–1.72]), and unnatural-cause (5.24 [4.97–5.51]) mortality rates than the general population. Suicide-specific SMR was markedly elevated (7.92 [7.47–8.38]), particularly in the 15–34 year-olds (12.75 [10.87–14.79]). Respiratory diseases, cardiovascular diseases and cancers accounted for the majority of deaths. Excess LYLs extended to men (5.67 years, 95% CI = 5.45–5.90) and women (4.06 years, 95% CI = 3.89–4.23). Overall and natural-cause mortality rates improved over time, but unnatural-cause and suicide-related mortality gaps persisted. Taken together, this study indicates that depression is associated with increased premature mortality and reduced lifespan in a predominantly Chinese population, mainly attributed to natural causes. Relative suicide-specific mortality is substantially elevated, especially among young people. The pronounced mortality gap underscores an urgent need for effective interventions targeting improved physical health and suicide risk reduction in individuals with depression.

“Early Mortality and Health Care Costs in Patients Recently Diagnosed with Kaposi Sarcoma at the National Cancer Institute, Mexico City”

Abstract Background Kaposi Sarcoma (KS) is a marker of advanced HIV disease; it is still the most frequent AIDS-associated malignancy in Mexico despite universal access to antiretroviral therapy, reflecting a gap in early HIV diagnosis. Objectives To describe people with HIV (PWH) with KS who died within 30 days of admission at INCan and quantify resources and years of life lost (YLL). Methodology We collected demographic data, HIV-related variables, all diagnostic and therapeutic procedures, hospitalizations, and estimated YLL and Disability-Adjusted Life Years (DALYs). Results Eighteen (6.7 %) PWH with KS from 270 patients admitted at INCan from 2014-2021 were included. The median age was 31 years (IQR 27-36), and the median days from admission to death were 15 (IQR 6-24), and from HIV diagnosis to death, 73 days (IQR 30-857). Upon admission, the median HIV viral load was 314,476 copies/mL (IQR 140,709-695,613), CD4+ T cells count was 93 cells/mL (IQR 35-124), and CD4/CD8 ratio was 0.08 (IQR 0.06-0.12), coinfections were diagnosed in 14 (77.7 %) patients, The average expenditure per patient was 7685.99 USD, and the total YLL was 737.4, a median of 42 years (IQR 37.7-47) per patient. The total care cost was 183,947.48 USD, equivalent to a screening program in key populations, which would have allowed the early detection of 1227 cases and saved 8,410 DALYs. Conclusions Reinforcement of early HIV infection detection in key population programs should be prioritized to reduce KS-associated deaths and YLL and for rational use of health budgets.

Life years lost by childhood cancer treatment and health related late effects among childhood cancer survivors

BackgroundIdentifying risk factors contributing the most to mortality of childhood cancer survivors is essential to guide harm reduction efforts in childhood cancer treatments, and long-term follow-up of childhood cancer survivors. MethodsWe assessed Life Years Lost from childhood cancer treatments and their health-related late effects among the French Childhood Cancer Survivors Study, a cohort of 7670 5-year childhood cancer survivors. Using a landmark strategy, we also assessed time-varying effects of risk factors, and how the multi-morbidity affects life years lost. ResultsWe found subsequent malignant neoplasm (9.0 years [95 %CI: 4.3–13.7]), severe cardiac disease (8.0 years [95 %CI: 1.2–14.9]), and the use of radiotherapy (6.0 years [95 %CI: 4.7–7.3]) to be the highest contributors to Life Years Lost among childhood cancer survivors. We found no interaction impact on life years lost between health related late effects considered. ConclusionsThose findings suggest that radiotherapy is the root cause of early mortality among childhood cancer survivors. Moreover patients experiencing a subsequent malignant neoplasm or a cardiac disease should be monitored closely after the event, as comorbidity is common and causes premature deaths.

Burden of disease and cost of illness of overweight and obesity in Portugal.

The prevalence of overweight and obesity has increased in the last decades, posing significant health and economic impacts globally. These conditions are related to several non-communicable diseases, including cardiovascular disease, type II diabetes and cancer. This study estimated the disease burden and healthcare costs associated with overweight and obesity in the adult population in mainland Portugal, in 2018. Burden of disease was measured in disability-adjusted life years (DALY) following Global Burden of Disease (GBD) methodology. DALY were calculated as the sum of years of life lost (YLL) and years lived with disability (YLD). The analyses included morbidity, mortality and related costs directly related to overweight and obesity, as well as the attributable morbidity, mortality and related costs of of 25 selected diseases related to obesity (DrO). A prevalence-based cost analysis was conducted a from the perspective of the public National Health Service, including costs related to inpatient, outpatient care and pharmacological treatment. In 2018, total DALY amounted to 260,943, with 75% due to premature death (196,438 YLL) and 25% due to disability (64,505 YLD). The economic burden of overweight and obesity was estimated at approximately € 1,148 million. Of these, approximately € 13.3 million (1%) were costs related to the treatment of obesity, and the remaining were costs of DrO attributed to overweight and obesity. Outpatient care corresponded to 43% of total costs, pharmacological treatment 38%, and inpatient care 19%. Cardiovascular and cerebrovascular diseases were the largest contributor to total costs (38%), followed by type II diabetes (34%). Overweight and obesity incur a large disease and economic burden to the public healthcare sector, representing approximately 0.6% of the country´s gross domestic product and 5.8% of public health expenditures.

Long-term trends and future projections of larynx cancer burden in China: a comprehensive analysis from 1990 to 2030 using GBD data

Larynx cancer poses a significant public health challenge in China, with rising incidence and mortality rates over the past decades. Understanding the long-term trends and underlying factors is crucial for effective intervention and policy formulation. Data were utilized from the global burden of disease (GBD) Study 2021 to analyze the incidence, prevalence, mortality, disability-adjusted life years (DALYs), years lived with disability (YLDs), and years of life lost (YLLs) due to larynx cancer in China from 1990 to 2021. Joinpoint regression analysis identified key changes in trends, while age-period-cohort (APC) analysis and decomposition analysis quantified the contributions of aging, epidemiological changes, and population growth to these trends. Our study found a significant increase in the incidence and prevalence of larynx cancer in China, particularly among males. The age-standardized incidence rate (ASIR) and age-standardized mortality rate (ASMR) for males were substantially higher than those for females. Decomposition analysis revealed that aging was the primary driver of increasing incidence and mortality rates, while epidemiological changes had a mitigating effect. Joinpoint analysis identified periods of rapid urbanization and economic growth as key turning points for increased incidence. Bayesian APC models projected a continued upward trend in incidence rates up to 2030. The rising burden of larynx cancer in China underscores the need for targeted public health interventions, including smoking cessation programs, environmental pollution control, and early detection strategies. Addressing gender disparities and implementing effective prevention measures are crucial to mitigating the impact of larynx cancer in China.

The global burden of enteric fever, 2017–2021: a systematic analysis from the global burden of disease study 2021

Enteric fever is a major public health challenge in developing countries. We conducted a systematic analysis from the Global Burden of Diseases 2021 Study to provide updated estimates of enteric fever's burden. We presented estimates for incident cases and deaths, age-standardized incidence and mortality rates, years of life lost (YLLs), and case-fatality rates spanning the study period of 2017-2021, stratified by region, country, socio-demographic index (SDI), and age group. Random-effects Poisson regression for longitudinal data was used to estimate the association between SDI and case-fatality rates, adjusting for antimicrobial resistance patterns. In 2021, there were 9.3 million global cases of enteric fever (95% uncertainty interval: 7.3-11.9) and 107.5 thousand deaths (56.1-180.8). The age-standardized incidence rate decreased from 152/100,000 person-years (118-195) in 2017 to 128/100,000 person-years (100-163) in 2021, and the mortality rate decreased from 1.87/100,000 person-years (0.95-3.18) to 1.50/100,000 person-years (0.78-2.54). There were wide geographical differences, with South Asia contributing the most cases and deaths. Age-standardized incidence exceeded the threshold for "high burden" of enteric fever (100/100,000 person-years) in 23 countries in2021.Children under five accounted for 40% of deaths and 47% of YLLs, with incidence and mortality peaking during the second year. Case-fatality was highest in low SDI countries and showed a global trend toward reduction, except among children aged 1-4 years. After adjusting for the prevalence of multidrug resistance, fluoroquinolone non-susceptibility, and third-generation cephalosporin resistance, a higher SDI was associated with a lower case-fatality rate, with a 1.1% (0.7-1.7) reduction for each percentage point increase in SDI. Despite notable improvements, several countries still showed a high burden of enteric fever, which remains a significant global health concern, especially among children under five. Although enhancing water and sanitation systems is crucial, the most significant reductions in the global disease burden are likely to be achieved through broader vaccine coverage. This includes the use of typhoid conjugate vaccines, which are effective in infants and young children and offer extended protection, along with improved data collection and surveillance to guide vaccine distribution efforts across high-incidence areas. This work was partially supported by "Ricerca Corrente" funding from Italian Ministry of Health to IRCCSHumanitas Research Hospital.

Burden of diabetes mellitus in Weifang: Changing trends in prevalence and deaths from 2010 to 2021.

The objective of this study is to analyze the death characteristics and burden of disease (BOD) in diabetes mellitus (DM) patients in Weifang from 2010 to 2021. The findings will serve as a foundational data source and theoretical framework for public health administrative departments in the formulation of DM-related policies. The annual percent change (APC) and average annual percent change (AAPC) of the disability-adjusted life years (DALY), years of life lost (YLL), and years lived with disability (YLD) in DM residents from 2010 to 2021 were analyzed using the Joinpoint software to reflect the changing trend of the BOD in DM patients. Additionally, we conducted an analysis of the various causes of death among these patients and compared BOD in diabetic patients with different backgrounds. From 2010 to 2021, the burden of disease, which includes DALY, YL, and YLD, has been increasing among patients with DM in Weifang. It is noteworthy that the burden of disease is particularly pronounced among male patients and those aged 75 or above. Additionally, it is observed that widowed and illiterate DM patients have comparatively longer survival times. Furthermore, among the DM patients who have unfortunately passed away, it has been identified that unspecified DM with ketoacidosis accounts for 10.03% of the deaths as a direct cause of death. In contrast, type 2 diabetes mellitus (T2DM) with kidney complications contributes to 10.23% of the deaths as the fundamental cause of death. The city is faced with a significant challenge of diabetes, which is influenced by factors such as gender, age, cultural background, and marital status. Unspecified diabetes mellitus (DM) with ketoacidosis (10.03%) and T2DM with renal complications (0.23%) are identified as the primary direct and underlying causes of death among diabetic patients, respectively. This study serves as a valuable reference for other regions in terms of diabetes prevention, control, and the management of chronic diseases.

Gender Differences in Years of Life Lost resulting from the 2015 Gorkha Earthquake in Nepal

Abstract Background Nepal has a history of regular natural hazards, including significant earthquakes and floods. Previous studies have shown that females, particularly younger females, are more likely to die due to disasters compared to males. This study aimed to explore gender differences in mortality - measured in Years of Life Lost (YLL) - caused by the 2015 Gorkha earthquake across 41 districts of Nepal. Methods Mortality counts were derived from the Nepal Police Report. YLL was estimated by multiplying mortality counts (stratified by age, gender, and district) by age-conditional life expectancy from the 2019 Global Burden of Disease reference life table. Both absolute numbers and rates of YLL per 100,000 population were calculated. YLL per deaths, stratified by age-gender-and-location, were estimated and compared. Male-to-female YLL rate ratios were estimated as well, and compared across districts. Results The 2015 Gorkha earthquake resulted in 8,950 deaths (females: 56.1% versus males: 43.9%), accounting for 526,617 YLL. Males had a slightly higher number of YLL per death (59.2) compared to females (58.5); this is mainly due to the different number of deaths between males and females. YLL per deaths ranged from 65.4 (Rautahat district) to 0 (in several districts) among males and, from 65.3 (Rautahat district) to 0 (in several districts) among females. The YLL rate per 100,000 population was higher for females (3,158 per 100,000) than for males (2,575 per 100,000). Approximately 40% of the districts had male-to-female YLL rate ratios of less than one, which can be partly explained by the gender distribution of the population at rik of dying due to earthquake. Conclusions The study found relatively higher YLL per death for males and higher YLL rates for females. This underscores the necessity to further investigate the factors that contribute to fatalities from earthquakes, especially in lower middle income countries such as Nepal. Key messages • Gender disparities in mortality following the 2015 Gorkha earthquake in Nepal were addressed using Years of Life Lost (YLLs); males had higher YLL per death, while females had higher YLL rates. • Exploring the factors that contribute to earthquake-related fatalities should be a priority for disaster mitigation strategies.

Long-Term exposure to NO2 and Stroke Mortality in Portugal: an ecological study from 2001 to 2021

Abstract Background Air pollution is an important contributing factor for many pathologies, including stroke. Nitrogen dioxide (NO2), an air pollutant, has been associated in multiple studies with strokes’ mortality. Aim This study aims, for the first time, to estimate the number of deaths by stroke due to long-term, ambient exposure to nitrogen dioxide in Portugal for the years 2001-2021. Methods An ecological study was considered, including data for NO2 outdoor concentration from Portugal. Mortality data by stroke was obtained divided in 5-year groups. It was also obtained life expectancy for each year to calculate the years of life lost (YLL). The hazard ratio (HR) was obtained from literature (1.009, CI 1.003-1.016). The population attributable fraction (PAF) of YLL by stroke due to ambient NO2 long-term exposure was calculated. Results The annual average NO2 concentration in Portugal decreased from its peak in 2001 of 29.4 to 12.2 µg/m3 in 2021. The YLL by stroke decreased from an estimated 57452 to 31204 from 2001 to 2021. The PAF of YLL by stroke due to ambient NO2 long-term exposure reached its peak in 2001, when an estimated 5.2% of all the YLL by stroke, corresponding to 3029 YLL, were due to NO2 exposure and a bottom in 2021, when 2.2%, corresponding to 682 YLL, where due NO2 exposure. Conclusions The policies and legislation implemented to curb down NO2 seem to have had an effect in Portugal. A reduction in NO2 emissions was achieved, having a significant impact on YLL by stroke in Portugal, suggesting that curbing the NO2 emissions down had a positive effect on mortality by stroke in Portugal. To further enhance our knowledge on the real impacts of NO2, further studies must be conducted to estimate the morbidity associated with NO2 on stroke as well as in other diseases. Key messages • Pollution by nitrogen dioxide decreased significantly from 2001 to 2021. • Around 20000 years of life were lost just in Portugal due to nitrogen dioxide between 2001 and 2021.

Impact of Noncommunicable Diseases on Years of Life Lost in FB&H During the COVID-19 Pandemic

Abstract This study aims to comprehensively investigate the impact of noncommunicable diseases (NCDs) on years of life lost (YLL) within the Federation of Bosnia and Herzegovina (FB&H) across distinct phases: pre-pandemic, pandemic, and post-pandemic periods. Given that NCDs currently represent more than half of the global disease burden, our focus lies in assessing YLL specifically for cerebral infarction (I63-I64) and diabetes mellitus (E10-E14). Conducting a retrospective data analysis, we utilized mortality data sourced from the Institute for Statistics of FB&H to quantify YLL. This assessment involved multiplying age-specific mortality figures by the remaining life expectancy at the corresponding age, utilizing the GBD 2019 life expectancy table. Examining the period between 2019 and 2022, our analysis aimed to elucidate the pandemic’s potential influence on NCD burden, through the examination of age-standardized YLL rates based on the world standard population. In 2019, YLL attributable to I63-I64 for both sexes totaled 41,244 in 2019, escalating to 44,790 in 2020, and subsequently decreasing to 39,439 and 32,055 in the pandemic years of 2021 and 2022, respectively. For diabetes mellitus (E10-E14), YLL in 2019 amounted to 23,675, with figures for 2020, 2021, and 2022 standing retrospectively at 24,329, 24,114, 19,125. The increase in 2020 may be attributed, in part, to initial healthcare hesitancy during the pandemic’s onset, leading to delayed treatment and heightened mortality rates. Furthermore, patients who died in 2020 from C-19 without being tested may have skewed mortality registration by inflating rates attributed to pre-existing conditions. The declining rates thereafter could be due to a harvesting pandemic effect, in that people who were previously ill died prematurely from C-19. These insights show the pandemic’s profound impact on NCD-related mortality, underscoring the urgent need for targeted interventions and healthcare strategies. Key messages • A substantial reduction in years of life lost (YLL) related to certain noncommunicable diseases was observed during the pandemic. • The pandemic significantly influenced mortality among individuals with noncommunicable diseases, driven partly by healthcare hesitancy and potential misregistration of causes of death.

Burden of inflammatory bowel disease in Belgium, 2020

Abstract Inflammatory bowel disease (IBD) comprises digestive disorders resulting from non-infectious inflammation of the colon and gastrointestinal tract. With its global prevalence on the rise, IBD poses significant challenges to healthcare systems. There is a need for more accurate disease burden estimates to guide decision-making processes within the health sector. As a part of the Belgian national burden of disease study (BeBOD), this study aims to estimate the burden of IBD in Belgium based on locally available data. We estimated the Belgian IBD burden in 2020 in terms of mortality, prevalence, years of life lost (YLLs) due to premature death, years lived with disability (YLDs), and disability-adjusted life years (DALYs). As there is no single comprehensive data source on prevalence of IBD in Belgium, a critical appraisal of existing local and national data sources was conducted. Prevalence data were combined with disability weights to yield YLDs. YLLs were calculated using the most recent Global Burden of Disease (GBD) 2019 reference life table and the number of deaths caused by non-infective IBD (ICD-10 K50-52). Cause of death data were extracted from Statbel, the Belgian statistical office. The best available data source to estimate the IBD prevalence in Belgium was a widespread network of general practitioners. The prevalence of IBD was 1.5% in 2020. The prevalence-based YLD for IBD was 220 YLDs per 100 000, while the YLL rate was 11.5 per 100 000. We estimated 26 276 DALYs caused by IBD in 2020. Of the total DALYs caused by IBD, 5% were due to YLLs and 95% were due to YLDs. Our burden estimates for IBD in Belgium were however higher than those of the GBD study. IBD imposes a low fatal burden, whereas the burden of morbidity is more prominent. Our findings could be useful for policy makers to justify and prioritize resource allocation. Integrating the current research in BeBOD will allow monitoring the burden of IBD over time. Key messages • Inflammatory bowel disease is characterized by a substantial non-fatal burden due to chronic relapsing and persistent symptoms. • National inflammatory bowel disease burden estimates are useful to guide decision-making within the health sector.

All-cause Years of life lost due to death at municipality level in Norway. Association to educational attainment and median income

Abstract Background Norway, with 5.5 million people spread across 356 municipalities, has pursued an active policy to reduce social and geographical health inequalities. Despite, studies find significant health disparities linked to socioeconomic factors at the individual-level, although evidence at larger geographical-levels has been mixed. We used a key burden of disease (BoD) metric, Years of Life Lost (YLL), to examine spatial health inequities among Norwegian municipalities and their association with socioeconomic factors. Methods We analysed data from all residents in Norwegian municipalities with over 1000 inhabitants as of January 1, 2019. Data was sourced from the National Population Register and Statistics Norway. All-cause YLL were calculated based on age-specific aspirational life expectancy obtained from GBD 2019. Deprivation was measured using educational attainment and median income, categorized into quartiles. Geographical maps illustrating municipality-level all-cause age-standardised YLL rates for males and females were generated. Negative binomial regression models assessed associations between socioeconomic factors and YLL rates, adjusting for age, sex, and an index of centralisation. Results High-deprivation municipalities exhibited a 9% higher YLL rate in terms of education (Incidence Rate Ratio [IRR] = 1.09, 95% Confidence Interval [CI] = 1.01-1.17) and a 10% higher YLL rate in terms of income (IRR = 1.10, 95% CI = 1.02-1.08) compared to the least deprived, translating to absolute differences of 1391 and 1466 YLL per 100,000 population, respectively. Additionally, we discuss the potential expansion of this study to incorporate cause-specific outcomes and other BoD metrics based on previous county-level analyses. Conclusions Our study demonstrates the feasibility of using BoD methods to assess geographical deprivation and premature mortality at the municipality level, providing valuable insights for public health policy targeted at small administrative areas.

How ambient NO2 impacts the mortality burden of ischemic heart disease in Portugal (2011-2021)?

Abstract Background Air pollution is a major environmental risk to human health, contributing to premature death and disease. Nitrogen dioxide (NO2) is a pollutant of significant public health concern, associated with increased risks of all-cause mortality, particularly in cardiovascular and respiratory deaths. In 2021, NO2 exposure exceeding the World Health Organization Air Quality Guidelines resulted in 69,000 deaths in the European Union. This study aims to estimate the impact of ambient NO2 exposure on ischemic heart disease (IHD) in Portugal, from 2011 to 2021, estimated in years of life lost (YLL). Methods Data on ambient NO2 levels were obtained from the Portuguese Environment Agency’s online database QualAr. Only monitoring stations that reported valid data for at least 75% of the time in a year were considered. The number of IHD mortality cases from 2011 to 2021 was sourced from Statistics Portugal. The burden of IHD attributed to NO2 exposure was estimated in YLL for the Portuguese population aged 25 years and older, categorized by five-years age groups, regions of mainland Portugal and sex, using the population attributable fraction (PAF). Results Between 2011 and 2021, mainland Portugal experienced a declining trend in NO2 mean levels, with occasional fluctuations. Regarding IHD YLL attributed to NO2 exposure, the same trend was followed with an overall decline over the study period. In total, 94,843.75 (95% CI 53,408.35-134,766.17) IHD YLL were attributed to NO2 exposure, with an estimated number of IHD YLLs higher for males than for females. Conclusions These findings underscore the significant impact of air pollution on human health. Despite an overall reduction in YLL across mainland Portugal, persistent health effects emphasize the need to reduce NO2 concentrations, with informed decision-making being crucial to mitigate these impacts and protect public health. Key messages • Ambient NO2 exposure significantly impacts ischemic heart disease mortality in Portugal. • These estimates underscore the necessity of well-informed decision-making to safeguard public health.

COVID-19 premature mortality in Serbia: Does the place of death matter?

Abstract Background The COVID-19 pandemic has significantly impacted healthcare services provision in Serbia and globally. Many people did not seek or reach healthcare due to various reasons, and a significant number of COVID-19 deaths were not confirmed by laboratory testing. Within the project of the Laboratory for Strengthening Capacity and Performance of Health System and Workforce for Health Equity, we assessed the differences in years of life lost (YLL) of COVID-19 death cases according to the place of death. Methods The Statistical Office of the Republic of Serbia provided average life expectancy and anonymous individual mortality data of the Serbian population in 2020, 2021, and 2022, where COVID-19 was the underlying cause of death (ICD-X codes: laboratory confirmed - U07.1 and clinically diagnosed - U07.2), also disaggregated by the place of death (at home or in a hospital). Analytical statistics and nonparametric tests were used to assess the differences in premature mortality by place of death with a significance level set at p < 0.05. Results In all observed years, a total of 45,632 death cases due to COVID-19 occurred (94.3% in hospital and 5.7% at home). Most COVID-19 deaths were coded as U07.1 (93.8% in hospital, 91.3% at home). An average of 12.12±7.50 YLLs was estimated per death, with a median of 11.50. There was a significant difference (p < 0.001) in the median number of YLLs between those who died in the hospital (11.50) and those who died at home (6.78). Furthermore, deaths occurring at home had fewer YLLs but were more frequently coded as U07.2 (p < 0.001). Conclusions The place of death is relevant when assessing the impact of COVID-19 on premature mortality in Serbia. On average, persons who died at home due to COVID-19 had a lower number of YLLs compared to those who died in a hospital. More research is necessary on the other factors contributing to premature mortality and inequalities in the COVID-19 burden in Serbia. Key messages • During the first three years of the COVID-19 pandemic in Serbia, 5.7% of COVID-19 deaths occurred at home, resulting in an average of 9.89 years of life lost. • The COVID-19 pandemic highlights the need to investigate deaths that occur at home and improve pandemic preparedness.

Addressing Regional Health Disparities: Estonia’s Approach to Burden of Disease Studies

Abstract Background Estonia, a small country defined by NUTS2 regions, faces challenges in assessing health disparities across its different counties when using global health data such as the Global Burden of Disease (GBD). Recognizing this limitation, Estonia initiated independent burden of disease studies in Estonia since 2013, with the findings being biennially published through the health statistics database of the National Institute for Health Development. The objective of this research is to assess the strengths and limitations inherent in various methods when calculating the years of life lost due to premature mortality (YLLs). Methods The approach to assess the burden of disease in Estonia differs somewhat from the Global Burden of Disease (GBD) methodology. One key distinction lies in our utilization of a national life expectancy table and our presentation of results at the LAU1 regional level. These burden of disease studies utilize region-specific life tables supplied by Statistics Estonia, categorized by county and gender, to compute Years of Life Lost (YLLs), offering an opportunity to pinpoint and tackle regional health issues. Results Since the calculation of YLL (Years of Life Lost) in these past studies has relied upon Estonia’s regionalized life tables, categorized by county and gender, the results exhibit substantial disparities when juxtaposed with the Global Burden of Disease study conducted by the Institute for Health Metrics and Evaluation (IHME). Conclusions This research aims to delve deeper into these variations, examining the challenges related to methodology, the availability, and the quality of data, and most importantly, knowledge translation. Our own burden of disease studies empowers us to formulate informed policy recommendations precisely tailored to the distinctive needs of each county, thereby facilitating targeted interventions, and driving improvements in overall public health outcomes.

Regional inequalities in years of life lost within the European Economic Area: Using the Gini coefficient and slope index of inequality to assess spatial disparities

Abstract Background Health inequalities have been linked to reduced life expectations. This study aimed to investigate regional variations in all-cause years of life lost (YLLs) in European Economic Area (EEA) countries prior to the COVID-19 pandemic. Methods Demographic data were extracted from Eurostat for 1390 small regions 32 EEA countries. Age-standardised sex specific YLL rates per 100,000 population in 2019 were estimated for EEA regions (Eurostat NUTS level 3) using methodologies derived from the Global Burden of Disease study. Relative spatial disparities were evaluated using the Gini coefficient (GC) and absolute spatial disparities assessed using the slope index of inequality (SII). Results Between EEA countries, relative geographical inequality in age-standardized YLL rates was higher than within them, slightly more so for males (GC = 16.96% [95% CI = 16.26-17.65]) than females (14.22% [13.62-14.82]). Among females, the UK (11.21% [95% CI 10.11-12.30]), Greece, and Croatia had the highest relative spatial inequality, while Ireland (3.37% [2.26-4.48]), Slovakia, and the Netherlands had the lowest. For males, Belgium (10.76% [9.34-12.17]), the UK, and Croatia exhibited the highest relative spatial inequality, while Ireland (1.99% [1.18-2.81]), Lithuania, and Slovakia had the lowest. Germany had the largest absolute geographical inequality in YLLs among females (SII=16.86% [16.28 to 17.44]), followed by Estonia and the UK. Among males, Estonia had the largest absolute spatial inequality (36.60% [-10.88 to 84.07]), followed by Latvia and Hungary. Ireland had the lowest absolute spatial inequality for both females and males. Conclusions Relative and absolute disparities in premature mortality rates are evident across regions of the EEA, both within countries and across the entire region. These findings offer insights for national and local stakeholders, aiding them in customising public health interventions to target spatial health disparities.

Cost-benefit analysis: just a step in the HIA process

Abstract The economic analysis within Health Impact Assessments (HIA) is a critical component in informing public policy decisions by assessing the financial implications of health outcomes associated with the different intervention options. Health metrics play a role defining the cost-effectiveness and societal value associated with the interventions. These metrics, quantifying the health impacts, include quality-adjusted life years (QALYs), years of life lost (YLLs) or disability-adjusted life years (DALYs). On another level, such metrics need to be translated into cost-effectiveness and societal value in which other methods play a role, such as the value of statistical life (VSL) or the value of a life year (VOLY). While VSL quantifies the value individuals place on reducing mortality risk, VOLY evaluates the value attributed to extending life expectancy. On another hand, uncertainties related to economic valuation pose challenges to the accuracy and reliability of cost estimates within HIA. These come from several factors, including data quality, methodological differences across studies, and subjective judgments involved in valuing health states. In fact, estimating the economic value of a prevented death involves multifaceted considerations and important assumptions. Additionally, assigning monetary values to non-fatal health outcomes, such as disability or reduced quality of life, involves subjective assessments and value judgments. By selecting appropriate metrics, considering diverse data sources, and addressing methodological steps and uncertainties, HIA practitioners can improve the utility of economic assessments, facilitating evidence-based decision-making in public health policy and resource allocation. This work was supported by National Funds through FCT - Fundação para a Ciência e a Tecnologia,I.P., within CINTESIS, R&D Unit (reference UIDP/4255/2020).