Improved and standardized method for assessing years lived with disability after burns and its application to estimate the non-fatal burden of disease of burn injuries in Australia, New Zealand and the Netherlands

Health service utilisation cost associated with residential fire incidents in New South Wales, Australia

BACKGROUND

Fire is a major contributor to global fatalities and disabilities and remains a prevalent threat to individuals in Australia. New South Wales (NSW) experiences over one-third of all structure fires, including residential ones, in the country and one-quarter of all associated deaths and hospital admissions. In an atmosphere of rising healthcare cost and heightened demand for its services, obtaining total cost data for residential fires is essential. The study aims to estimate the cost of health service utilisation, including ambulance, emergency, and hospital admission, resulting from residential fire incidents in NSW, Australia.

METHOD

This population-based cohort study uses response and health service administration data from 1 January 2005 to 31 December 2014. The data sources are Australian Computer Aided Dispatch system, Fire and Rescue NSW Australian Incident Reporting System, NSW Ambulance datasets, NSW Emergency Department Data Collections, and NSW Admitted Patient Data Collection which are administrative datasets that have been linked. Cost figures were expressed in constant 2023 Australian dollars.

RESULTS

The estimated annual average cost for ambulance use was AU$75 thousand, with the average cost per use of AU$945. The average annual cost for emergency department visits was AU$137 thousand, and the average cost per visit was AU$890. The average total length of stay in hospital was nine days. The average annual cost of episodes of care in hospital was estimated at AU$4 million, with the average cost per episode of care of AU$16,140. The study assessed the total cost for health service use relevant to residential fire incidents and associated injuries at AU$46 million over time, averaging approximately AU$5 million annually.

CONCLUSION

This study provided, for the first time, total and average costs of health service utilisation per type for ambulance use, ED visits, and hospital admissions associated with residential fire incidents and related injuries using linked administrative data in NSW. Our study will assist the government and stakeholders in making informed decisions that prioritise funding for healthcare service and improve the quality of overall fire safety and public health outcomes.

The 'AfterBurn' Longitudinal Exploratory (ABLE) study: Cohort profile

With advanced medical treatments more burns patients survive their injuries, requiring a better understanding of the quality-of-life outcomes experienced after the burn. The aims of the ABLE study cohort profile are to describe the baseline characteristics. The study included participants aged 18 years or over, admitted to a single state-wide burns centre in Queensland, Australia with a 'major burn injury'. Baseline survey data were collected either in person or by telephone within 28 days of the injury and participants were followed up with in-person, or telephone interviews at 3-, 6- and 12-months post-burn. Injury and burns treatment information were collected from medical records or the hospital database and surveys collected demographic and psychosocial data. Health-Related Quality of Life (HRQoL) data were collected using the 12-item Short Form Survey - version 1 (SF-12v1) and the Burn Specific Health Scale - Brief version (BSHS-B). Of the 274 participants recruited, 71.5 % (N = 196) remained enrolled in the study at 12 months post-burn. The median age for the cohort was 41.5 years (range 18 to 87 years) and the majority were male (72 %) as well as non-Indigenous Australians (76 %). The median Total Body Surface Area (TBSA) burned was 4.75 % (IQR=1.5-10.13) with a range of 0.1 % to 79.75 %. The largest percentage of participants sustained a flame burn (N = 129, 47.1 %) followed by scald (N = 56, 20.4 %) then contact burn (N = 54, 19.7 %). Fewer participants were injured by chemical (N = 14, 5.1 %), friction (N = 11, 4 %), and electrical burns (N = 6, 2.2 %). There were 37.9 % participants who reported having been diagnosed with a psychological condition prior to their burn injury. These findings provide an overview of baseline characteristics with a greater understanding of personal, environmental, burn injury and burn treatment factors in a state-wide burn centre.

Development of a value-based healthcare burns core set for adult burn care

BACKGROUND

Value-based healthcare (VBHC) is increasingly implemented in healthcare worldwide. Transparent measurement of the outcomes most important and relevant to patients is essential in VBHC, which is supported by a core set of most important quality indicators and outcomes. Therefore, the aim of this study was to develop a VBHC-burns core set for adult burn patients.

METHODS

A three-round modified national Delphi study, including 44 outcomes and 24 quality indicators, was conducted to reach consensus among Dutch patients, burn care professionals and researchers. Items were rated on a nine-point Likert scale and selected if ≥ 70% in each group considered an item 'important'. Subsequently, instruments quantifying selected outcomes were identified based on a literature review and were chosen in a consensus meeting using recommendations from the Dutch consensus-based standard set and the Dutch Centre of Expertise on Health Disparities. Time assessment points were chosen to reflect the burn care and patient recovery process. Finally, the initial core set was evaluated in practice, leading to the adapted VBHC-burns core set.

RESULTS

Twenty-seven patients, 63 burn care professionals and 23 researchers participated. Ten outcomes and four quality indicators were selected in the Delphi study, including the outcomes pain, wound healing, physical activity, self-care, independence, return to work, depression, itching, scar flexibility and return to school. Quality indicators included shared decision-making (SDM), the number of patients receiving aftercare, determination of burn depth, and assessment of active range of motion. After evaluation of its use in clinical practice, the core set included all items except SDM, which are assessed by 9 patient-reported outcome instruments or measured in clinical care. Assessment time points included are at discharge, 2 weeks, 3 months, 12 months after discharge and annually afterwards.

CONCLUSION

A VBHC-burns core set was developed, consisting of outcomes and quality indicators that are important to burn patients and burn care professionals. The VBHC-burns core set is now systemically monitored and analysed in Dutch burn care to improve care and patient relevant outcomes. As improving burn care and patient relevant outcomes is important worldwide, the developed VBHC-burns core set could be inspiring for other countries.

Psychiatric Illness and Substance Abuse: Unaddressed Factors in Burn Injury

Patients with psychiatric illness and substance use comorbidities have high rates of burn injuries and experience prolonged hospital admissions. This retrospective chart review characterizes this marginalized population's inpatient burn care and examines post-discharge outcomes compared to burn patients without psychiatric or substance use comorbidities treated at our center. Patients admitted to a single burn center from January 1, 2018 to June 1, 2022 were included. Patient demographics, history of psychiatric disorders, treatment course, and post-discharge outcomes were collected. A total of 1660 patients were included in this study, of which 91 (6%) patients were diagnosed for psychiatric comorbidity and/or substance use comorbidity on admission for burn care. In this cohort of 91 patients with psychiatric and/or substance use comorbidities, the majority of patients were undomiciled (66%) and male (67%). In this cohort, 66 (72%) patients reported recent history or had positive urine toxicology results for illicit substances on admission. In this cohort, a total of 25 (28%) patients had psychiatric comorbidity at the time of burn injury or admission and 69 (76%) patients received inpatient psychiatric care, with 31 (46%) patients requiring psychiatric holds. After discharge, the readmission rate within 1 year of patients with psychiatric and/or substance use comorbidity was over four times greater than that of patients without psychiatric and/or substance use comorbidity. The most common causes of readmission were subsequent mental health crisis (40%) and inability to perform burn care (32%). Our study presents strategies to improve burn care for this marginalized and high-risk population.

ATP-induced hypothermia improves burn injury and relieves burn pain in mice

Thermal burn injury is a severe and life-threatening form of trauma that presents a significant challenge to clinical therapy. Therapeutic hypothermia has been shown to be beneficial in various human pathologies. Adenosine triphosphate (ATP) induces a hypothermic state that resembles hibernation-like suspended animation in mammals. This study investigates the potential protective role of ATP-induced hypothermia in thermal burn injury. Male C57BL/6 mice underwent a sham procedure or third-degree burn, and ATP-induced hypothermia was applied immediately or 1 h after burn injury. Our results show that ATP-induced hypothermia significantly improved burn depth progression and reduced collagen degradation. Moreover, hypothermia induced by ATP alleviated burn-induced hyperinflammatory responses and oxidative stress. Metabolomic profiling revealed that ATP-induced hypothermia reversed the shifts of metabolic profiles of the skin in burn mice. In addition, ATP-induced hypothermia relieved nociceptive and inflammatory pain, as observed in the antinociceptive test. Our findings suggest that ATP-induced hypothermia attenuates burn injury and provides new insights into first-aid therapy after thermal burn injury.

The burden of disease of fatal and non-fatal burn injuries for the full spectrum of care in the Netherlands

BACKGROUND

A comprehensive overview of the burden of disease of burns for the full spectrum of care is not available. Therefore, we estimated the burden of disease of burns for the full spectrum in the Netherlands in 2018, and explored whether the burden of disease changed over the past 5 years (2014-2018).

METHODS

Data were collected at four levels: general practice, emergency department, hospital, and mortality data. For each level, years lived with disability (YLD), years of life lost (YLL), and disability-adjusted life-years (DALY) were estimated using a tailored methodology.

RESULTS

Burns resulted in a total of 9278 DALYs in the Netherlands in 2018, comprising of 7385 YLDs (80%) and 1892 YLLs (20%). Burn patients who visited the general practice contributed most DALYs (64%), followed by deceased burn patients (20%), burn patients admitted to hospital (14%) and those treated at the emergency department (2%). The burden of disease was comparable in both sexes (4734 DALYs (51%) for females; 4544 DALYs (49%) for males), though the distribution of DALYs by level of care varied; females contributed more DALYs at the general practice level, and males at all other levels of care. Among children boys 0-4 years had the highest burden of disease (784 DALYs (9%)), and among adults, females 18-34 years old (1319 DALYs (14.2%)) had the highest burden of disease. Between 2014 and 2018 there was a marginal increase of 0.8% in the number of DALYs.

CONCLUSIONS

Burns cause a substantial burden of disease, with burns requiring care at the general practice level contributing most DALYs. Information on burden of burns by the full level of care as well as by subgroup is important for the development of tailored burn prevention strategies, and the updated figures are recommended to be used for priority setting and resource allocation.

Current understanding of the chronic stress response to burn injury from human studies

There is a marked inflammatory and hypermetabolic response following a burn injury. The interlinked responses are more pronounced than for other forms of trauma and can persist for ≥3 years post-injury in burned patients. After a burn, patients have an increased risk of diseases of ageing including cancer, diabetes and cardiovascular disease, highlighting the need for effective long-term strategies to ameliorate the stress response post-burn. Current therapeutic strategies for post-burn recovery include removal of damaged tissue with surgical excision and wound repair, nutritional supplementation and rehabilitative exercise. These strategies aim to minimize the hypermetabolic and inflammatory responses, as well as reducing the loss of lean body mass. This review briefly summarises the inflammatory and hypermetabolic responses and provides an update on the current therapeutic strategies for burned patients. The review examines the persistent nutritional challenge of ensuring sufficient energy intake of each macronutrient to fuel the hypermetabolic and counteract the catabolic response of burn injury, whilst reducing periods of hyperglycaemia and hypertriglyceridemia. Patients require individualized treatment options tailored to unique systemic responses following a burn, facilitated by a precision medicine approach to improve clinical and physiological outcomes in burned patients. Thus, this review discusses the utility of metabolic flexibility assessment to aid clinical decision making and prescription relating to nutritional supplementation and rehabilitative exercise in the burned patient.

Burn Patient Perspectives on Disability Weights and the Philosophy of Disability: A Gap in the Literature

Background

Disability-adjusted life years (DALY) have a ubiquitous presence in academic global health, including attempts to understand the global burden of burn injuries.

Objective

The present scoping review aimed to examine whether disability weights (DWs) were informed by burn patient perspectives and secondarily to determine whether literature indicates which of the three most common philosophical models of disability best aligns with burn patient experiences.

Methods

A review of six databases was conducted and The Critical Appraisal Skills Program (CASP) checklist was utilized.

Results

Out of a total of 764 articles, zero studies solicited patient perspectives of DWs. Four articles contained data that could be extrapolated to patient perspectives on disability. All articles utilized semi-structured interviews of burn survivors and reported thematic elements including return to work, self-image, and social integration. Patients reported similar themes that burn injuries were disabling injuries and instrumentally detrimental, with modulation based on the patient's social circumstances.

Conclusions

This scoping review highlights a significant gap in literature. First, no studies were found directly investigating burn patient perspectives on burn DWs. Current DWs have been derived from expert opinions with limited input from patients. Second, the limited primary patient data gleaned from this review suggest patients consider their injuries as instrumentally detrimental, which aligns most closely with the welfarist view of disability. More explicit investigations into the philosophical model of disability best aligning with burn patient experiences are needed to ground the health economics of burns in sound theory.

Adherence with early allied health assessments in specialist burn services

Appropriate multidisciplinary allied health assessment during the early stages of admission following burn injury positively influences recovery and quality of life. Variation in allied health care may affect patient outcomes. We aimed to explore adherence in providing early allied health assessments in accordance with local parameters. Associations between the number of assessments and hospital length of stay (LOS) were also explored. The Burns Registry of Australia and New Zealand was queried for adult (≥ 16 years) burn injured patients admitted to a specialist burn service for > 48 hours between July 2016 and June 2020. Quality indicator data relating to allied health assessment processes were examined; patients were grouped according to the number of assessments they received within 48 hours of admission. Of the 5789 patients included in the study, 5598 (97%) received at least one allied health assessment within 48 hours of admission and 3976 (69%) received all three assessments. A greater proportion of patients who received no assessments were admitted on a Saturday. Patients receiving three assessments had more severe injuries compared to their counterparts who received fewer assessments. Hospital LOS was not associated with the number of allied health assessments during an acute admission following burn injury after accounting for confounding factors, particularly TBSA. Multidisciplinary allied health teams provide routine burn care to Australian and New Zealand burns patients at a consistent level. Further, this study provides evidence that allied health input is prioritised towards patients with increasing severity of burn injury, playing an integral role in early rehabilitation.

Methodological considerations in injury burden of disease studies across Europe: a systematic literature review

Background

Calculating the disease burden due to injury is complex, as it requires many methodological choices. Until now, an overview of the methodological design choices that have been made in burden of disease (BoD) studies in injury populations is not available. The aim of this systematic literature review was to identify existing injury BoD studies undertaken across Europe and to comprehensively review the methodological design choices and assumption parameters that have been made to calculate years of life lost (YLL) and years lived with disability (YLD) in these studies.

Methods

We searched EMBASE, MEDLINE, Cochrane Central, Google Scholar, and Web of Science, and the grey literature supplemented by handsearching, for BoD studies. We included injury BoD studies that quantified the BoD expressed in YLL, YLD, and disability-adjusted life years (DALY) in countries within the European Region between early-1990 and mid-2021.

Results

We retrieved 2,914 results of which 48 performed an injury-specific BoD assessment. Single-country independent and Global Burden of Disease (GBD)-linked injury BoD studies were performed in 11 European countries. Approximately 79% of injury BoD studies reported the BoD by external cause-of-injury. Most independent studies used the incidence-based approach to calculate YLDs. About half of the injury disease burden studies applied disability weights (DWs) developed by the GBD study. Almost all independent injury studies have determined YLL using national life tables.

Conclusions

Considerable methodological variation across independent injury BoD assessments was observed; differences were mainly apparent in the design choices and assumption parameters towards injury YLD calculations, implementation of DWs, and the choice of life table for YLL calculations. Development and use of guidelines for performing and reporting of injury BoD studies is crucial to enhance transparency and comparability of injury BoD estimates across Europe and beyond.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12889-022-13925-z.

Parent-Reported Health-Related Quality of Life of Pediatric Burn Patients 5 to 7 Years after Burn Injuries: A Multicenter Study

BACKGROUND

 Pediatric burns significantly impact the short-term health-related quality of life (HRQL) of children. Knowledge regarding the long-term impact is scarce. We therefore evaluated the parent-reported HRQL in pediatric burn patients 5 to 7 years after burns.

METHODS

 We invited parents of eligible children admitted to a Dutch Burn Center between August 2011 and September 2012. This sample was enriched with children with severe burns (> 10% of total body surface area [TBSA] burned) admitted between January 2010 and March 2013. The EQ-5D was completed by parents 5 to 7 years postburn. Outcomes and predictive factors were studied and compared between children with minor/moderate and severe burns.

RESULTS

 We included 130 children (mean TBSA burned 7%): 102 children with mild/intermediate burns and 28 with severe burns. Mean EQ-5D summary was 0.96 and EQ visual analogue scale (VAS) 93.1. These outcomes were significantly better in children with minor/moderate burns (0.97; 94.4) compared with children with severe burns (0.93; 88.3) (p < 0.05). Nineteen percent of the children with minor/moderate burns and 43% of those with severe burns reported any problems. The most frequently reported problem was anxiety/depression for both groups. Pain/discomfort (p = 0.012) and cognition (p = 0.035) were statistically significantly worse in children with severe burns compared with those with minor/moderate burns. Full thickness burns and number of surgeries were found to predict long-term HRQL impairment.

CONCLUSION

 Five to seven years postburn, the majority of children in our study (76%) did not experience long-term problems with HRQL. In a minority of the children, burns showed to have a prolonged negative impact, especially in those being severely burned and who had to undergo surgery for their burns. Most experienced problems were related to anxiety/depression. These important insights could be used to inform children and their parents about the expected long-term HRQL after pediatric burns.

Burden and Costs of Severe Burn Injury in Victoria, Australia

This study examines the costs of severe burn injury in Victoria, Australia. It quantifies the funding generated through an activity-based case-mix system for hospital treatment of acute injury and presentations in the subsequent two years and costs of the longer-term burden of burn injury due to premature burn-related deaths and disability. Severe adult burns cases in Victoria from 2007-2016 were identified using the Victorian State Trauma Registry (VSTR). Cases were linked with the Victorian Admitted Episodes Dataset (VAED), Victoria Emergency Minimum Dataset (VEMD), and the National Coronial Information System (NCIS). Hospital re-imbursements and costs of Disability-Adjusted Life Years (DALYs) were calculated using disability weights derived from the EQ-5D-3L questionnaire responses at 24 months post injury. There were 331 patients hospitalised with a burn ≥20% total body surface area (TBSA) from 2007-2016. Total mean re-imbursement (SD) for the acute treatment episode per patient in Australian dollars (AUD) was $87,570 ($97,913). There was significant variation in the number of cases by year and re-imbursement per patient, with high outliers common. Excluding 2009, when 173 people died in bushfires, there were 7749 DALYs which cost $991,872,000. Severe burns are uncommon and variable. Economic treatment costs of severe burns are high, and among survivors there is high incidence of long-term disability and overall burden of injury.

The Role of the Immune System in Pediatric Burns: A Systematic Review

Burns are one of the most common causes of home injuries, characterized by serious damage to the skin and causing the death of affected tissues. In this review, we intended to collect information on the pathophysiological effects of burns in pediatric patients, with particular emphasis on local and systemic responses. A total of 92 articles were included in the review, and the time range of the searched articles was from 2000 to 2021. The occurrence of thermal injuries is a problem that requires special attention in pediatric patients who are still developing. Their exposure to various burns may cause disturbances in the immune response, not only in the area of tissue damage itself but also by disrupting the systemic immune response. The aspect of immunological mechanisms in burns requires further research, and in particular, it is important to focus on younger patients as the existence of subtle differences in wound healing between adults and children may significantly influence the treatment of pediatric patients.

Does exercise influence burn-induced inflammation: A cross-over randomised controlled feasibility trial

Background

Burn injuries trigger a greater and more persistent inflammatory response than other trauma cases. Exercise has been shown to positively influence inflammation in healthy and diseased populations, however little is known about the latent effect of exercise on chronic inflammation in burn injured patients. The aims of the pilot study were to assess the feasibility of implementing a long duration exercise training program, in burn injured individuals including learnings associated with conducting a clinical trial in COVID-19 pandemic.

Methods

Fifteen participants with a burn injury between 5–20% total body surface area acquired greater than a year ago were randomised in a within-subject designed study, into one of two conditions, exercise–control or control–exercise. The exercise condition consisted of six weeks of resistance and cardiovascular exercises, completed remotely or supervised in a hospital gym. A comprehensive outcome measurement was completed at the initial, mid and end point of each exercise and control condition. To determine the success of implementation, the feasibility indicator for the data completeness across the comprehensive outcome battery was set at 80%.

Results

Half (49%) of eligible participants in the timeframe, were recruited and commenced the study. Six participants withdrew prior to completion and a total of 15 participants completed the study. Eight participants were randomised to the exercise-control and seven to the control exercise group. Five participants trained remotely and seven did supervised training. Three participants completed a mix of both supervised and remote training initiated due to COVID restrictions. Outcome measures were completed on 97% of protocolised occasions and 100% of participants completed the exercise training.

Conclusions

Conducting a long duration exercise training study on burn injured individuals is feasible using the described methods. The knowledge gained helps improve the methodology in larger-scale projects. Insights into the impact of COVID-19 on this clinical trial and success enhancing adaptations for the researcher, research practice and the participant, are presented.

Assessing Health-Related Quality of Life of Adult Patients with Intermediate Burns: The Added Value of an Itching and Cognition Item for the EQ-5D: A Retrospective Observational Study

The EQ-5D is increasingly used to assess the health-related quality of life (HRQL) of adult patients with intermediate burns. However, this generic instrument may lack sensitivity, as important problems for burn patients, such as itching and cognition problems are not included in this instrument. This retrospective observational study investigates the value of adding an itching and cognition item to the EQ-5D-3L. Patients completed the EQ-5D-3L, and the Patient and Observer Scar Assessment Scale (POSAS), including an itching item and an extra cognition item three months postburn. The potential added value of an itching and cognition item was studied by distribution, informativity, convergent validity, dimension dependency, and explanatory analyses. In total, 120 patients were included of whom 65% reported itching and 23% reported cognition problems. Adding an itching item to the EQ-5D improved the discriminatory power and informativity of the EQ-5D-3L, but barely increased the explanatory power (0.4%) and decreased the convergent validity (r = -0.529 vs. r = -0.612). In contrast, adding a cognition item slightly improved the informativity and discriminatory power. Moreover, convergent validity (r = -0.617 vs. r = -0.612) and explanatory power increased (4.0%). In conclusion, adding an itching item to the EQ-5D-3L provides some additional information, however, the added value is small, whereas adding a cognition item improved the measurement properties of the EQ-5D-3L in our sample and should be considered when assessing HRQL in adult patients with intermediate burns.

Platelets after burn injury - hemostasis and beyond

Burn injuries are common and often life-threatening trauma. With this trauma comes an interruption of normal hemostasis, with distinct impacts on platelets. Our interest in the relationships between burn injury and platelet function stems from two key perspectives: platelet function is a vital component of acute responses to injury, and furthermore the incidence of cardiovascular disease (CVD) is higher in burn survivors compared to the general population. This review explores the impact of burn injury on coagulation, platelet function, and the participation of platelets in immunopathology. Potential avenues of further research are explored, and consideration is given to what therapies may be appropriate for mediating post-burn thrombopathology.

Activity impairment, work status, and work productivity loss in adults 5-7 years after burn injuries

An important aspect of the rehabilitation of burn patients is social participation, including daily activities and work. Detailed information on long-term activity impairment and employment is scarce. Therefore, we investigated activity impairment, work status, and work productivity loss in adults 5–7 years following burn injuries, and investigated associations with burn-specific health-related quality of life (HRQL) domains. Adult participants completed the Work Productivity and Activity Impairment General Health questionnaire and the Burn Specific Health Scale-brief (BSHS-B) 5–7 years post-burn. Outcomes were compared between participants with mild/intermediate and severe burns (>20% total body surface area burned). Seventy-six (36%) of the 213 participants experienced some degree of activity impairment due to burn-related problems 5–7 years post-burn. Seventy percent of the population was employed; 12% of them experienced work productivity loss due to burn-related problems. Nineteen percent reported changes in their work situation (partly) because of the burn injury. A higher proportion of participants with severe burns had activity impairments (56% vs 29%; P = .001) and work productivity loss (26% vs 8%; P < .001) compared to participants with mild/intermediate burns. Activity impairment and work productivity loss were both associated with burn-related work problems and lower mood, measured with the BSHS-B. In conclusion, a substantial part of the study population experienced activity impairment and work productivity loss, was unemployed, and/or reported changes in their work situation due to their injury. Particularly patients with severe burns reported productivity loss and had lower employment rates. This subscribes the importance of addressing work-related functioning in the rehabilitation of burn patients.

Assessing the Health Loss from Kashin-Beck Disease and Its Relationship with Environmental Selenium in Qamdo District of Tibet, China

Kashin-Beck Disease (KBD) is one of major endemic diseases in China. In this study, we estimated the health loss from KBD in Qamdo district of Tibet using the years lived with disability (YLD) metric and investigated the influence of environmental selenium (Se) on it by multiple regression model. The results showed that YLD rates produced a different ranking of health loss of KBD from that produced by prevalence rates between Basu and Luolong County, with higher health loss from KBD (43.61 YLD/1000) but lower prevalence (17.86%) in Basu County. YLD rates in two counites were both highest for the 45-64 years age group. Compared with the prevalence rate, the YLD rate had a closer relation to environmental Se and was significantly negatively correlated with Se in both soil and highland barley. The multiple linear regression further revealed that Se contents in cultivated soil and highland barley were main influencing factors for the health loss of KBD, which could explain 90.5% of the variation in YLD rates. The information obtained highlights the significance of the YLD metric in exploring the environmental etiology of KBD and provides important information on which to base decisions on future prevention and control of endemic diseases.