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1.
PLOS Glob Public Health ; 4(5): e0003154, 2024.
Article in English | MEDLINE | ID: mdl-38758822

ABSTRACT

Parents make important vaccination decisions for their children and many variables affect parents' decisions to accept or decline vaccines. Parents are tasked with locating, understanding, and applying information to inform health decisions often using online resources; however, the digital health literacy levels of parents are unknown. The purpose of this study was to investigate parents' digital health literacy levels, their sources for vaccine information, and analyze how demographics, digital health literacy, health literacy, parental attitudes and vaccine beliefs, trust, and vaccine information sources predict vaccine acceptance. Quantitative findings of a mixed methods study that examined parental vaccine decision making across the continuum of vaccine hesitant to vaccine accepting is reported. An online survey of parents of young children living in Ontario, Canada was conducted in 2022. Multiple linear regression determined predictors of vaccine acceptance. 219 participants completed the survey and on average reported adequate digital health literacy skill. Healthcare providers were reported as the most commonly used source of vaccine information. Two models were retained that predicted vaccine acceptance, both models predicted about 50% of the variability in vaccine acceptance. Model A identified that trust predicted parent vaccine acceptance and model B identified that digital health literacy, and the vaccine information sources healthcare providers, family and friends, and alternate healthcare providers predicted vaccine acceptance. Family and friends and alternate healthcare providers negatively predicted vaccine acceptance. Most parents in our study had high levels of digital health literacy. Opportunities exist for further research and policy change focused on trust at a systemic public health level. While clinical level implications included the importance of healthcare providers as a vaccine information source and adequate digital health literacy to facilitate parental vaccine decision making. Continued efforts to develop awareness on the importance of digital health literacy among the public and healthcare providers is needed, including further research on the digital health literacy levels of Canadians.

2.
Pathologica ; 116(2): 93-103, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38767542

ABSTRACT

Pulmonary involvement is frequent in vasculitis, particularly in ANCA-associated small vessel vasculitis. Laboratory and radiological data alone are often sufficient to confirm the clinical hypothesis, but sometimes the pathologist plays a crucial role in the differential diagnosis and the patient's management. In this review, the pathologic features of pulmonary vasculitis and the pathologist's role in this field are illustrated.


Subject(s)
Lung , Humans , Lung/pathology , Lung/diagnostic imaging , Vasculitis/pathology , Vasculitis/diagnosis , Diagnosis, Differential , Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis/pathology , Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis/diagnosis , Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis/complications , Lung Diseases/pathology , Lung Diseases/diagnosis
3.
JMIR Public Health Surveill ; 10: e47154, 2024 May 24.
Article in English | MEDLINE | ID: mdl-38788212

ABSTRACT

BACKGROUND: The COVID-19 pandemic has prompted the deployment of digital technologies for public health surveillance globally. The rapid development and use of these technologies have curtailed opportunities to fully consider their potential impacts (eg, for human rights, civil liberties, privacy, and marginalization of vulnerable groups). OBJECTIVE: We conducted a scoping review of peer-reviewed and gray literature to identify the types and applications of digital technologies used for surveillance during the COVID-19 pandemic and the predicted and witnessed consequences of digital surveillance. METHODS: Our methodology was informed by the 5-stage methodological framework to guide scoping reviews: identifying the research question; identifying relevant studies; study selection; charting the data; and collating, summarizing, and reporting the findings. We conducted a search of peer-reviewed and gray literature published between December 1, 2019, and December 31, 2020. We focused on the first year of the pandemic to provide a snapshot of the questions, concerns, findings, and discussions emerging from peer-reviewed and gray literature during this pivotal first year of the pandemic. Our review followed the PRISMA-ScR (Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews) reporting guidelines. RESULTS: We reviewed a total of 147 peer-reviewed and 79 gray literature publications. Based on our analysis of these publications, we identified a total of 90 countries and regions where digital technologies were used for public health surveillance during the COVID-19 pandemic. Some of the most frequently used technologies included mobile phone apps, location-tracking technologies, drones, temperature-scanning technologies, and wearable devices. We also found that the literature raised concerns regarding the implications of digital surveillance in relation to data security and privacy, function creep and mission creep, private sector involvement in surveillance, human rights, civil liberties, and impacts on marginalized groups. Finally, we identified recommendations for ethical digital technology design and use, including proportionality, transparency, purpose limitation, protecting privacy and security, and accountability. CONCLUSIONS: A wide range of digital technologies was used worldwide to support public health surveillance during the COVID-19 pandemic. The findings of our analysis highlight the importance of considering short- and long-term consequences of digital surveillance not only during the COVID-19 pandemic but also for future public health crises. These findings also demonstrate the ways in which digital surveillance has rendered visible the shifting and blurred boundaries between public health surveillance and other forms of surveillance, particularly given the ubiquitous nature of digital surveillance. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): RR2-https://doi.org/10.1136/bmjopen-2021-053962.


Subject(s)
COVID-19 , Digital Technology , Pandemics , COVID-19/epidemiology , COVID-19/prevention & control , Humans , Pandemics/prevention & control , Public Health Surveillance/methods
4.
PLoS One ; 19(4): e0292512, 2024.
Article in English | MEDLINE | ID: mdl-38626030

ABSTRACT

Research ethics review committees (ERCs) worldwide faced daunting challenges during the COVID-19 pandemic. There was a need to balance rapid turnaround with rigorous evaluation of high-risk research protocols in the context of considerable uncertainty. This study explored the experiences and performance of ERCs during the pandemic. We conducted an anonymous, cross-sectional, global online survey of chairs (or their delegates) of ERCs who were involved in the review of COVID-19-related research protocols after March 2020. The survey ran from October 2022 to February 2023 and consisted of 50 items, with opportunities for descriptive responses to open-ended questions. Two hundred and three participants [130 from high-income countries (HICs) and 73 from low- and middle-income countries (LMICs)] completed our survey. Respondents came from diverse entities and organizations from 48 countries (19 HICs and 29 LMICs) in all World Health Organization regions. Responses show little of the increased global funding for COVID-19 research was allotted to the operation of ERCs. Few ERCs had pre-existing internal policies to address operation during public health emergencies, but almost half used existing guidelines. Most ERCs modified existing procedures or designed and implemented new ones but had not evaluated the success of these changes. Participants overwhelmingly endorsed permanently implementing several of them. Few ERCs added new members but non-member experts were consulted; quorum was generally achieved. Collaboration among ERCs was infrequent, but reviews conducted by external ERCs were recognized and validated. Review volume increased during the pandemic, with COVID-19-related studies being prioritized. Most protocol reviews were reported as taking less than three weeks. One-third of respondents reported external pressure on their ERCs from different stakeholders to approve or reject specific COVID-19-related protocols. ERC members faced significant challenges to keep their committees functioning during the pandemic. Our findings can inform ERC approaches towards future public health emergencies. To our knowledge, this is the first international, COVID-19-related study of its kind.


Subject(s)
COVID-19 , Humans , COVID-19/epidemiology , Pandemics , Cross-Sectional Studies , Emergencies , Ethics, Research
6.
Am J Transplant ; 24(6): 905-917, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38461883

ABSTRACT

The Banff Working Group on Liver Allograft Pathology met in September 2022. Participants included hepatologists, surgeons, pathologists, immunologists, and histocompatibility specialists. Presentations and discussions focused on the evaluation of long-term allograft health, including noninvasive and tissue monitoring, immunosuppression optimization, and long-term structural changes. Potential revision of the rejection classification scheme to better accommodate and communicate late T cell-mediated rejection patterns and related structural changes, such as nodular regenerative hyperplasia, were discussed. Improved stratification of long-term maintenance immunosuppression to match the heterogeneity of patient settings will be central to improving long-term patient survival. Such personalized therapeutics are in turn contingent on a better understanding and monitoring of allograft status within a rational decision-making approach, likely to be facilitated in implementation with emerging decision-support tools. Proposed revisions to rejection classification emerging from the meeting include the incorporation of interface hepatitis and fibrosis staging. These will be opened to online testing, modified accordingly, and subject to consensus discussion leading up to the next Banff conference.


Subject(s)
Graft Rejection , Liver Transplantation , Humans , Graft Rejection/etiology , Graft Rejection/pathology , Graft Survival , Allografts
8.
BMC Med Ethics ; 25(1): 24, 2024 Mar 02.
Article in English | MEDLINE | ID: mdl-38431625

ABSTRACT

INTRODUCTION: The value of a short life characterized by disability has been hotly debated in the literature on fetal and neonatal outcomes. METHODS: We conducted a scoping review to summarize the available empirical literature on the experiences of families in the context of trisomy 13 and 18 (T13/18) with subsequent thematic analysis of the 17 included articles. FINDINGS: Themes constructed include (1) Pride as Resistance, (2) Negotiating Normalcy and (3) The Significance of Time. INTERPRETATION: Our thematic analysis was guided by the moral experience framework conceived by Hunt and Carnevale (2011) in association with the VOICE (Views On Interdisciplinary Childhood Ethics) collaborative research group. RELEVANCE: This article will be of interest and value to healthcare professionals and bioethicists who support families navigating the medically and ethically complex landscape of T13/18.


Subject(s)
Ethicists , Morals , Infant, Newborn , Pregnancy , Female , Humans , Child , Trisomy 13 Syndrome , Prenatal Care , Health Personnel
10.
Analyst ; 149(5): 1665, 2024 Feb 26.
Article in English | MEDLINE | ID: mdl-38348476

ABSTRACT

Correction for 'Smartphone-read phage lateral flow assay for point-of-care detection of infection' by Maede Chabi, et al., Analyst, 2023, 148, 839-848, https://doi.org/10.1039/D2AN01499H.

11.
Monash Bioeth Rev ; 2024 Feb 13.
Article in English | MEDLINE | ID: mdl-38349584

ABSTRACT

In his 2000 book, From Chaos to Coercion: Detention and the Control of Tuberculosis, Richard Coker makes a number of important observations and arguments regarding the use of coercive public health measures in response to infectious disease threats. In particular, Coker argues that we have a tendency to neglect public health threats and then demand immediate action, which can leave policymakers with fewer effective options and may require (or may be perceived as requiring) more aggressive, coercive measures to achieve public health goals. While Coker makes a convincing case as to why we should find it ethically problematic when governments find themselves in this position and resort to coercion, left outstanding is the question of whether this should preclude governments and health authorities from using coercion if and when they do find themselves in this position. In this paper, I argue that, while we should consider it ethically objectionable when governments resort to coercion because they have neglected a public health threat, its causes, and other possible responses to that threat, this should not then necessarily rule out the use of coercion in such circumstances; that there are ethically objectionable antecedents for why coercion is being considered should not necessarily or automatically cause us to think coercion in such cases cannot be justified. I address an objection to this argument and draw several conclusions about how governments' use of coercion in public health should be evaluated.

12.
Arch Pathol Lab Med ; 148(4): 419-429, 2024 Apr 01.
Article in English | MEDLINE | ID: mdl-37594899

ABSTRACT

CONTEXT.­: The pathologic diagnosis of pulmonary extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT) is challenging. OBJECTIVE.­: To evaluate the diagnostic usefulness and limitations of current diagnostic strategies for pulmonary MALT lymphoma. DESIGN.­: A retrospective review of 120 cases of pulmonary MALT lymphoma from 2014 through 2021 was performed. RESULTS.­: Clinicoradiologic presentations overlapped with previous observations in patients with MALT lymphoma, such as a wide age range, female predominance, frequent association with autoimmune disease or immunodeficiency, and broad imaging findings. The histopathologic diagnosis was based on a combination of morphology, immunohistochemistry, and demonstration of B-cell lineage clonality. Two-thirds (76 of 113) of MALT lymphomas had lymphoplasmacytoid cytomorphology. Occasionally, MALT lymphomas were associated with granulomas/giant cells (29%, 35 of 120) or immunoglobulin deposition disease (21%, 25 of 120), including light chain/heavy chain deposition disease, amyloidosis, and/or crystal storing histiocytosis. While CD5, CD10, Bcl-2, and Bcl-6 rarely revealed aberrancies, aberrant CD43 expression either on B-cells or on plasma cells was detected in 42% (27 of 64) of cases, including cases for which proof of clonality could not be obtained. κ/λ in situ hybridization was particularly useful for tumors with lymphoplasmacytoid morphology but performed poorly in lymphomas having no plasmacytic differentiation. κ/λ immunohistochemistry showed no additional usefulness when applied together with κ/λ in situ hybridization. Immunoglobulin gene rearrangement studies by polymerase chain reaction achieved high detection rates of clonality in all cytomorphologic subgroups. CONCLUSIONS.­: Our study offers a practical evaluation of common diagnostic tests in pulmonary MALT lymphoma. We offer recommendations for a diagnostic workup that takes into consideration the usefulness and the specific limitations of the various diagnostic strategies.


Subject(s)
Lymphoma, B-Cell, Marginal Zone , Humans , Female , Male , Lymphoma, B-Cell, Marginal Zone/diagnosis , Lymphoma, B-Cell, Marginal Zone/genetics , B-Lymphocytes/pathology , Plasma Cells/pathology , Gene Rearrangement , Immunohistochemistry
13.
Arch Pathol Lab Med ; 148(2): 168-177, 2024 Feb 01.
Article in English | MEDLINE | ID: mdl-37226833

ABSTRACT

CONTEXT.­: The pathologic diagnosis of usual interstitial pneumonia (UIP) remains a challenging area, and application of histologic UIP guidelines has proved difficult. OBJECTIVE.­: To understand current practice approaches by pulmonary pathologists for the histologic diagnosis of UIP and other fibrotic interstitial lung diseases (ILDs). DESIGN.­: The Pulmonary Pathology Society (PPS) ILD Working Group developed and sent a 5-part survey on fibrotic ILD electronically to the PPS membership. RESULTS.­: One hundred sixty-one completed surveys were analyzed. Of the respondents, 89% reported using published histologic features in clinical guidelines for idiopathic pulmonary fibrosis (IPF) in their pathologic diagnosis; however, there was variability in reporting terminology, quantity and quality of histologic features, and the use of guideline categorization. Respondents were very likely to have access to pulmonary pathology colleagues (79%), pulmonologists (98%), and radiologists (94%) to discuss cases. Half of respondents reported they may alter their pathologic diagnosis based on additional clinical and radiologic history if it is pertinent. Airway-centered fibrosis, granulomas, and types of inflammatory infiltrates were considered important, but there was poor agreement on how these features are defined. CONCLUSIONS.­: There is significant consensus among the PPS membership on the importance of histologic guidelines/features of UIP. There are unmet needs for (1) consensus and standardization of diagnostic terminology and incorporation of recommended histopathologic categories from the clinical IPF guidelines into pathology reports, (2) agreement on how to incorporate into the report relevant clinical and radiographic information, and (3) defining the quantity and quality of features needed to suggest alternative diagnoses.


Subject(s)
Idiopathic Pulmonary Fibrosis , Lung Diseases, Interstitial , Humans , Consensus , Tomography, X-Ray Computed/methods , Lung Diseases, Interstitial/diagnosis , Lung Diseases, Interstitial/pathology , Idiopathic Pulmonary Fibrosis/diagnosis , Idiopathic Pulmonary Fibrosis/pathology , Lung/diagnostic imaging , Lung/pathology , Fibrosis
14.
J Med Ethics ; 50(4): 268-271, 2024 Mar 20.
Article in English | MEDLINE | ID: mdl-37253557

ABSTRACT

Some organisations make vaccination a condition of employment. This means prospective employees must demonstrate they have been vaccinated (eg, against measles) to be hired. But it also means organisations must decide whether existing employees should be expected to meet newly introduced vaccination conditions (eg, against COVID-19). Unlike prospective employees who will not be hired if they do not meet vaccination conditions, existing employees who fail to meet new vaccination conditions risk being fired The latter seems worse than the former. Hence, objections to vaccination mandates commonly centre on the harms that will be visited on existing employees who are unwilling to be vaccinated. However, because this objection does not necessarily entail the claim that vaccination is unnecessary for the effective and safe performance of certain jobs, those making this objection should have less of an objection, or no objection at all (at least on these grounds), to introducing vaccination requirements in some cases for prospective employees. Yet, in this paper, I shall argue that if one has reason to believe vaccination requirements can be justified for prospective employees, one should also believe they are justified for existing employees despite any asymmetry in consequences experienced by the two groups. As a consequence, common objections made against vaccination mandates grounded solely in the harms that may be experienced by existing employees who are unwilling to be vaccinated should be considered unpersuasive.


Subject(s)
Measles , Vaccination , Humans , Prospective Studies , Employment , Measles/prevention & control
15.
J Am Coll Surg ; 238(1): 61-69, 2024 Jan 01.
Article in English | MEDLINE | ID: mdl-37870238

ABSTRACT

BACKGROUND: Acute kidney injury (AKI) kidneys, including those from donors on dialysis, are often underutilized, although there is increasing data available demonstrating good transplant outcomes. To date, data on the duration of donor dialysis and transplant outcomes are limited. STUDY DESIGN: This was a single-center study of deceased donor kidney transplants from 2010 to 2022. The study cohort consisted of recipients of deceased donor kidney transplants from donors with AKI and on dialysis. Three groups were identified based on the predetermined interquartile range of donor dialysis duration: 1 to 2 dialysis days, 3 to 4 dialysis days, and 5 or more dialysis days. RESULTS: During this period, 765 AKI deceased donor transplants were performed, of which 230 were from donors on dialysis. The median dialysis duration was 2 days with a maximum of 13 days. Across the 3 groups, there were no differences in recipient age (p = 0.23) or dialysis vintage (p = 0.70). Donor age (p = 0.86) and kidney donor profile index (p = 0.57) were comparable between the groups. Recipients of deceased donor kidney transplants from donors on dialysis 5 or more days had lower terminal creatinine levels (p = 0.003) and longer cold ischemia times (p = 0.04). Posttransplant, the median length of hospital stay was 3 days for all groups (p = 0.75). There were no differences in delayed graft function occurrence (94.4% vs 86.8% vs 92.1%, p = 0.19), duration of delayed graft function (p = 0.56), or readmissions (p = 0.99). At 1 year posttransplant, the estimated glomerular filtration rate (p = 0.76), patient survival (p = 0.82), or death-censored graft survival (p = 0.28) were comparable. CONCLUSIONS: Excellent outcomes have been observed in AKI deceased donor kidney transplants, including those coming from donors on dialysis. In this small cohort, the duration of donor dialysis did not adversely affect outcomes. Cautious expansion of the donor pool, including donors on dialysis, should be considered given the ongoing organ shortage.


Subject(s)
Acute Kidney Injury , Kidney Transplantation , Humans , Delayed Graft Function/etiology , Delayed Graft Function/epidemiology , Renal Dialysis , Tissue Donors , Acute Kidney Injury/etiology , Acute Kidney Injury/therapy , Graft Survival , Kidney , Retrospective Studies
16.
BMC Public Health ; 23(1): 2481, 2023 12 12.
Article in English | MEDLINE | ID: mdl-38082287

ABSTRACT

BACKGROUND: Vaccine hesitancy is driven by a heterogeneous and changing set of psychological, social and historical phenomena, requiring multidisciplinary approaches to its study and intervention. Past research has brought to light instances of both interpersonal and institutional trust playing an important role in vaccine uptake. However, no comprehensive study to date has specifically assessed the relative importance of these two categories of trust as they relate to vaccine behaviors and attitudes. METHODS: In this paper, we examine the relationship between interpersonal and institutional trust and four measures related to COVID-19 vaccine hesitancy and one measure related to general vaccine hesitancy. We hypothesize that, across measures, individuals with vaccine hesitant attitudes and behaviors have lower trust-especially in institutions-than those who are not hesitant. We test this hypothesis in a sample of 1541 Canadians. RESULTS: A deficit in both interpersonal and institutional trust was associated with higher levels of vaccine hesitant attitudes and behaviors. However, institutional trust was significantly lower than interpersonal trust in those with high hesitancy scores, suggesting that the two types of trust can be thought of as distinct constructs in the context of vaccine hesitancy. CONCLUSIONS: Based on our findings, we suggest that diminished institutional trust plays a crucial role in vaccine hesitancy. We propose that this may contribute to a tendency to instead place trust in interpersonally propagated belief systems, which may be more strongly misaligned with mainstream evidence and thus support vaccine hesitancy attitudes. We offer strategies rooted in these observations for creating public health messages designed to enhance vaccine uptake.


Subject(s)
COVID-19 Vaccines , Trust , Vaccination Hesitancy , Humans , Canada , Vaccination/psychology
17.
PLoS One ; 18(12): e0295912, 2023.
Article in English | MEDLINE | ID: mdl-38127862

ABSTRACT

Vaccine hesitancy remains a significant and evolving public health challenge. The COVID-19 pandemic has created a unique decision context with significant uncertainty caused by the novelty of the disease being targeted, unfamiliarity with the vaccines being offered, misinformation, and strong handed government measures. In an effort to extend our understanding of vaccine hesitancy to the high uncertainty decision environment presented by COVID-19, we present a novel taxonomy of the determinants of vaccine hesitancy, based on an inductive analysis of qualitative data gathered during the COVID-19 pandemic. We report on focus group data from a purposive sample of 18 Canadians with varying sociodemographic characteristics and COVID-19 vaccination attitudes. An inductive thematic analysis of this data reveals eight core themes related to vaccine hesitancy: values, trust, social environment, personal anecdotes, environmental fluctuation, prior knowledge, perceived risk & systems of care. We explore these core themes as well as 25 sub-themes, contrasting them with previous models of vaccine hesitancy and suggesting potential strategies for public health professionals.


Subject(s)
COVID-19 , Vaccination Hesitancy , Humans , Canada/epidemiology , COVID-19/epidemiology , COVID-19/prevention & control , COVID-19 Vaccines , Pandemics/prevention & control , Uncertainty , Vaccination Hesitancy/psychology
18.
Front Med (Lausanne) ; 10: 1282827, 2023.
Article in English | MEDLINE | ID: mdl-37928458

ABSTRACT

Introduction: JC polyomavirus (JCPyV) is a ubiquitous virus that can be latent in the brain and the kidney. It is the etiologic agent responsible for progressive multifocal leukoencephalopathy, a fatal, demyelinating disease of the central nervous system, and rarely causes polyomavirus nephropathy in immunocompromised kidney transplant recipients. Case description: We present the first case of JCPyV nephropathy in a simultaneous heart-kidney transplant patient, where viral-specific in situ hybridization staining of the kidney tissue was utilized to confirm the diagnosis. The patient was diagnosed 6 years after simultaneous heart-kidney transplantation and was treated with immunosuppression reduction and intravenous immunoglobulin. Discussion: JCPyV nephropathy should be considered in the differential diagnosis of kidney allograft injury, particularly, with suggestive light microscopy histologic features in the absence of BK polyomavirus viremia and/or viruria. In addition to obtaining JCPyV PCR in the blood, in situ hybridization staining may have a utility in confirming the diagnosis. To date, we lack effective JCPyV-specific therapies, and prompt initiation of immunosuppression reduction remains the mainstay of treatment.

19.
Can J Nurs Res ; : 8445621231207546, 2023 Oct 18.
Article in English | MEDLINE | ID: mdl-37853544

ABSTRACT

BACKGROUND: Facebook is a prominent social medial platform frequently used for business marketing. Researchers are starting to recognize the utility of this platform for developing research awareness, information dissemination, and more recently participant recruitment. PURPOSE: This paper will provide an overview of methods used in Facebook recruitment through an exemplar study. It will highlight successes and challenges and provide insight into future opportunities for its' use. METHODS: Two methods of Facebook recruitment are outlined in this paper: the use of Facebook groups and paid advertising. A step-by-step guide highlights how researchers can implement these specific methods of Facebook recruitment. RESULTS: Facebook was successfully utilized to recruit participants in the exemplar study. Recruitment was completed over a period of 82 days with a total cost of $157.09 Canadian dollars. CONCLUSION: Facebook is a viable method of recruiting research participants. This method can be cost-effective, timely, and efficient in comparison to traditional research recruitment methods. However, one must balance the benefits and challenges of this type of recruitment.

20.
SSM Popul Health ; 24: 101481, 2023 Dec.
Article in English | MEDLINE | ID: mdl-37674979

ABSTRACT

Health inequities are differences in health that are 'unjust'. Yet, despite competing ethical views about what counts as an 'unjust difference in health', theoretical insights from ethics have not been systematically integrated into epidemiological research. Using diabetes as an example, we explore the impact of adopting different ethical standards of health equity on population health outcomes. Specifically, we explore how the implementation of population-level weight-loss interventions using different ethical standards of equity impacts the intervention's implementation and resultant population health outcomes. We conducted a risk prediction modelling study using the nationally representative 2015-16 Canadian Community Health Survey (n = 75,044, 54% women). We used the Diabetes Population Risk Tool (DPoRT) to calculate individual-level 10-year diabetes risk. Hypothetical weight-loss interventions were modelled in individuals with overweight or obesity based on each ethical standard: 1) health sufficiency (reduce DPoRT risk below a high-risk threshold (16.5%); 2) health equality (equalize DPoRT risk to the low risk group (5%)); 3) social-health sufficiency (reduce DPoRT risk <16.5 in individuals with lower education); 4) social-health equality (equalize DPoRT risk to the level of individuals with high education). For each scenario, we calculated intervention impacts, diabetes cases prevented or delayed, and relative and absolute educational inequities in diabetes. Overall, we estimated that achieving health sufficiency (i.e., all individuals below the diabetes risk threshold) was more feasible than achieving health equality (i.e., diabetes risk equalized for all individuals), requiring smaller initial investments and fewer interventions; however, fewer diabetes cases were prevented or delayed. Further, targeting only diabetes inequalities related to education reduced the target population size and number of interventions required, but consequently resulted in even fewer diabetes cases prevented or delayed. Using diabetes as an example, we found that an explicit, ethically-informed definition of health equity is essential to guide population-level interventions that aim to reduce health inequities.

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