Equity, diversity and inclusion (EDI) in the healthcare field are crucial in meeting the healthcare needs of a progressively diverse society. In fact, a diverse healthcare workforce enables culturally sensitive care, promotes health equity and enhances the understanding of various needs and patients’ viewpoints, potentially resulting in more effective patient treatment and improved patient outcomes. Despite this, information on the effectiveness of policies or programmes promoting EDI in health institutions is scarce. The objective of this systematic review is to assess the effects and outcomes of EDI programmes in healthcare institutions.
We will conduct Preferred Reporting Items for Systematic Reviews and Meta-Analyses-compliant systematic review of studies on EDI programmes and describe their effects and outcomes in healthcare institutions. We will search PubMed, Scopus, Web of Science, CINAHL and PsycINFO databases. Selected studies will include randomised control trials (RCTs), non-RCTs and cross-sectional studies published either in English or French. Quality appraisal of studies and a narrative synthesis of extracted data will be conducted as well as a meta-analysis if possible. The quality of evidence in this review will be assessed by the Grades of Recommendation, Assessment, Development and Evaluation.
We anticipate that this systematic review will reveal information on the effect of EDI programmes and their outcomes in healthcare institutions. We expect this information will provide insights that will lead to improvements in designing EDI policies and programmes in healthcare institutions.
No ethical clearance is required for this study as no primary data will be collected. The final manuscript will be submitted to a journal for publication. In addition to this, the results of the study will also be disseminated through conference presentations to inform the research and clinical practice.
This protocol has been registered with the International Prospective Register of Systematic Reviews; registration number CRD42024502781.
We conducted an updated systematic review and meta-analysis to investigate the effect of colchicine treatment on clinical outcomes in patients with COVID-19.
Systematic review and meta-analysis.
We searched PubMed, Embase, the Cochrane Library, medRxiv and ClinicalTrials.gov from inception to January 2023.
All randomised controlled trials (RCTs) that investigated the efficacy of colchicine treatment in patients with COVID-19 as compared with placebo or standard of care were included. There were no language restrictions. Studies that used colchicine prophylactically were excluded.
We extracted all information relating to the study characteristics, such as author names, location, study population, details of intervention and comparator groups, and our outcomes of interest. We conducted our meta-analysis by using RevMan V.5.4 with risk ratio (RR) and mean difference as the effect measures.
We included 23 RCTs (28 249 participants) in this systematic review. Colchicine did not decrease the risk of mortality (RR 0.99; 95% CI 0.93 to 1.05; I2=0%; 20 RCTs, 25 824 participants), with the results being consistent among both hospitalised and non-hospitalised patients. There were no significant differences between the colchicine and control groups in other relevant clinical outcomes, including the incidence of mechanical ventilation (RR 0.75; 95% CI 0.48 to 1.18; p=0.22; I2=40%; 8 RCTs, 13 262 participants), intensive care unit admission (RR 0.77; 95% CI 0.49 to 1.22; p=0.27; I2=0%; 6 RCTs, 961 participants) and hospital admission (RR 0.74; 95% CI 0.48 to 1.16; p=0.19; I2=70%; 3 RCTs, 8572 participants).
The results of this meta-analysis do not support the use of colchicine as a treatment for reducing the risk of mortality or improving other relevant clinical outcomes in patients with COVID-19. However, RCTs investigating early treatment with colchicine (within 5 days of symptom onset or in patients with early-stage disease) are needed to fully elucidate the potential benefits of colchicine in this patient population.
CRD42022369850.
To investigate the risk of cardiovascular events associated with commonly used dual and triple therapies of evogliptin, a recently introduced dipeptidyl peptidase-4 inhibitor (DPP4i), for managing type 2 diabetes in routine clinical practice.
A retrospective cohort study.
Korean Health Insurance Review and Assessment database.
Patients who initiated metformin-based dual therapy and metformin+sulfonylurea-based triple therapy in South Korea from 2014 to 2018.
Initiation of combination therapy with evogliptin.
Hazards of cardiovascular events, a composite endpoint of myocardial infarction, heart failure and cerebrovascular events, and its individual components. Cox proportional hazards model with propensity score-based inverse probability of treatment weighting were used to estimate HRs and 95% CIs.
From the dual and triple therapy cohorts, 5830 metformin+evogliptin users and 2198 metformin+sulfonylurea+evogliptin users were identified, respectively. Metformin+evogliptin users, as compared with metformin+non-DPP4i, had a 29% reduced risk of cardiovascular events (HR 0.71, 95% CI 0.62 to 0.82); HRs for individual outcomes were cerebrovascular events (0.71, 95% CI 0.53 to 0.95), heart failure (0.70, 95% CI 0.59 to 0.82), myocardial infarction (0.89, 95% CI 0.60 to 1.31). Metformin+sulfonylurea+evogliptin users, compared with metformin+sulfonylurea+non-DPP4i, had a 24% reduced risk of cardiovascular events (0.76, 95% CI 0.59 to 0.97); HRs for individual outcomes were myocardial infarction (0.57, 95% CI 0.27 to 1.19), heart failure (0.74, 95% CI 0.55 to 1.01), cerebrovascular events (0.96, 95% CI 0.61 to 1.51).
These findings suggest that dual or triple therapies of evogliptin for the management of type 2 diabetes in routine clinical practice present no cardiovascular harms, but could alternatively offer cardiovascular benefits in this patient population.
The study aims to investigate the perceptions of patients with thyroid cancer on the potential impact of diagnosis and treatment delays during the COVID-19 pandemic.
This study involved qualitative semi-structured telephone interviews. The interviews were transcribed verbatim, analysed using the thematic framework analysis method and reported using the Consolidated Criteria for Reporting Qualitative Research.
Participants in the study were treated and/or managed at hospital sites across New South Wales and Victoria, Australia.
17 patients with thyroid cancer were interviewed and included in the analysis (14 females and 3 males).
The delays experienced by patients ranged from 12 months. The patients reported about delays to diagnostic tests, delays to surgery and radioactive iodine treatment, perceived disease progression and, for some, the financial burden of choosing to go through private treatment to minimise the delay. Most patients also reported not wanting to experience delays any longer than they did, due to unease and anxiety.
This study highlights an increased psychological burden in patients with thyroid cancer who experienced delayed diagnosis and/or treatment during COVID-19. The impacts experienced by patients during this time may be similar in the case of other unexpected delays and highlight the need for regular clinical review during delays to diagnosis or treatment.
Cancer-related lymphoedema is one of the most debilitating side-effects of cancer treatment with an overall incidence of 15.5%. Patients may suffer from a variety of symptoms, possibly resulting in a diminished health-related quality of life (HRQoL). A microsurgical technique known as lymphaticovenous anastomosis (LVA) might be a promising treatment option. The objective of this study is to evaluate whether LVA is effective and cost-effective compared with sham surgery in improving the HRQoL.
A multicentre, double-blind, randomised sham-controlled trial conducted in three university hospitals in the Netherlands. The study population comprises 110 patients over the age of 18 years with unilateral, peripheral cancer-related lymphoedema, including 70 patients with upper limb lymphoedema and 40 patients with lower limb lymphoedema. A total of 55 patients will undergo the LVA operation, while the remaining 55 will undergo sham surgery. The follow-up will be at least 24 months. Patients are encouraged to complete the follow-up by explaining the importance of the study. Furthermore, patients may benefit from regular monitoring moments for their lymphoedema. The primary outcome is the HRQoL. The secondary outcomes are the limb circumference, excess limb volume, changes in conservative therapy, postoperative complications, patency of the LVA and incremental cost-effectiveness.
The study was approved by the Medical Ethical Committee of Maastricht University Medical Center on 20 September 2023 (NL84169.068.23). The results will be presented at scientific conferences and published in peer-reviewed medical journals.
To identify and synthesize evidence available on nurse leaders' interpersonal communication competence.
Systematic mixed-methods review according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis checklist.
The data were collected following predefined inclusion criteria. Two authors independently performed the study selection using Covidence software. Three authors assessed the quality using Joanna Briggs' Institute's critical appraisal tool and the mixed-methods appraisal tool. The data-based convergent synthesis design and narrative synthesis were used.
CINAHL, PubMed, Scopus, Business Source Elite, Academic Search Premier, Communication & Mass Media Complete, PsycInfo, Web of Sciences, Medic and Finna.fi were searched and the screening of citations in relevant articles. The final searches were performed on 17 October 2022.
A total of 26 studies—15 quantitative, 9 qualitative and 1 of both mixed-method and multi-method—met the inclusion criteria. The nurse leaders' interpersonal communication competences described in the extant literature were categorized into three themes: message competence, relational competence and task competence. There were considerable differences in the levels of competence, as some competences were considered basic communication skills, while others required more advanced level competences. Furthermore, three competence levels were identified: novice, competent and expert.
This study unravels a unique hierarchical description of communication skills across competence categories, supported by the assumption that communication skills are structured hierarchically. The studies reviewed herein had a narrow perception of nurse leaders' interpersonal communication competence and indicated a transmissional understanding of communication.
This is the first mixed-methods systematic review that describes and synthesizes the evidence on nurse leaders' communication competencies hierarchically and across competence levels. The study suggests that further research should focus on a broader and more analytical understanding of the cognitive and affective aspects of interpersonal communication competence.
CRD42023385058.
No patient or public contribution.
To understand nurses' knowledge, beliefs and experiences affect pain management practices in hospitalised persons living with dementia (PLWD).
Naturalistic inquiry using qualitative descriptive design.
Semi-structured interviews were conducted with 12 registered nurses who worked in one acute care hospital in Southern California from October to November 2022. Data were analysed using content analysis to identify themes.
Two themes were developed: improvising pain assessment, which included how pain was documented, and administration hesitancy referring to nurse's concerns about PLWD's confusion. Nurses described the challenges of assessing pain in hospitalised PLWD particularly if they were non-verbal and/or demonstrating responsive behaviours. Nurse's years of experience, dementia stigma, and their unconscious biases affected nurses' pain management practices.
The study findings highlight the complex challenges of pain management in hospitalised PLWD that are exacerbated by nurses' knowledge deficits, negative stereotypical beliefs, dementia stigma and unconscious biases towards older people that contributes to undermanaged pain in hospitalised PLWD.
A comprehensive strategy using an implementation framework is needed to address nurse's knowledge gaps, unconscious bias, dementia stigma and techniques that enhance communication skills is suggested. Building a foundation in these areas would improve pain management in hospitalised PLWD.
Improving pain management in hospitalised PLWD would improve the quality of life, decrease hospital length of stay, prevent readmissions, and improve nurse satisfaction.
The study adhered to the Consolidated Criteria for Reporting Qualitative Research (COREQ).
Improving pain management in hospitalised PLWD would prevent long term confusion, episodes of delirium and improve quality of life as they recover from their acute illness for which they required hospital care.
Effective health care relies on person-centeredness and teamwork, which are known to improve outcomes. These two concepts have been defined individually, but we could not find a definition of the combined concept. A preliminary definition was developed through a concept analysis; however, consensus on the concept has not been reached.
The aim of this study was to reach consensus on the definition and attributes of person-centered teamwork.
A consensus design allowed experts to collaborate and share their experience and wisdom to refine and reach consensus on the definition and attributes of person-centered teamwork. An e-Delphi was used to engage the experts.
Three rounds of online engagement with 12 experts were needed to reach consensus on the definition and attributes of person-centered teamwork. The attributes reached consensus of 82% after the first round. The definition had 82% consensus after the three rounds. The definition had been adjusted and refined according to the expert input. The newly adjusted definition was established.
We successfully used the e-Delphi method to obtain consensus on the attributes and definition of person-centered teamwork. The definition of person-centered teamwork can be further developed and included in clinical practice to guide improved clinical outcomes. The consensus definition of person-centered teamwork provides a clear understanding of the meaning thereof, which may in turn enrich the usability thereof in clinical practice. Person-centered teams improve outcomes for persons receiving care in hospitals. Building person-centered teams are now better understood and the foundation of building these teams defined. We engaged with 12 experts in the academic and clinical field of person-centeredness and teamwork. The use and value of the Delphi method to obtain consensus is now better understood and can assist future research development.
To compare metabolic dysfunction-associated profiles between patients with diabetes who developed different obesity-related site-specific cancers and those who remained free of cancer during follow-up.
Retrospective cohort study.
Public general outpatient clinics in Hong Kong.
Patients with diabetes without a history of malignancy (n=391 921).
The outcomes of interest were diagnosis of site-specific cancers (colon and rectum, liver, pancreas, bladder, kidney and stomach) during follow-up. Cox proportional hazards regression was applied to assess the associations between metabolic dysfunction and other clinical factors with each site-specific cancer.
Each 0.1 increase in waist-to-hip ratio was associated with an 11%–35% elevated risk of colorectal, bladder and liver cancers. Each 1% increase in glycated haemoglobin was linked to a 4%–9% higher risk of liver and pancreatic cancers. While low-density lipoprotein cholesterol and triglycerides were inversely associated with the risk of liver and pancreatic cancers, high-density lipoprotein cholesterol was negatively associated with pancreatic, gastric and kidney cancers, but positively associated with liver cancer. Furthermore, liver cirrhosis was linked to a 56% increased risk of pancreatic cancer. No significant association between hypertension and cancer risk was found.
Metabolic dysfunction-associated profiles contribute to different obesity-related cancer outcomes differentially among patients with diabetes. This study may provide evidence to help identify cancer prevention targets during routine diabetes care.
The community-based, longitudinal, Canadian HIV Women’s Sexual and Reproductive Health Cohort Study (CHIWOS) explored the experiences of women with HIV in Canada over the past decade. CHIWOS’ high-impact publications document significant gaps in the provision of healthcare to women with HIV. We used concept mapping to analyse and present a summary of CHIWOS findings on women’s experiences navigating these gaps.
Concept mapping procedures were performed in two steps between June 2019 and March 2021. First, two reviewers (AY and PM) independently reviewed CHIWOS manuscripts and conference abstracts written before 1 August 2019 to identify main themes and generate individual concept maps. Next, the preliminary results were presented to national experts, including women with HIV, to consolidate findings into visuals summarising the experiences and care gaps of women with HIV in CHIWOS.
British Columbia, Ontario and Quebec, Canada.
A total of 18 individual CHIWOS team members participated in this study including six lead investigators of CHIWOS and 12 community researchers.
Overall, a total of 60 peer-reviewed manuscripts and conference abstracts met the inclusion criteria. Using concept mapping, themes were generated and structured through online meetings. In total, six composite concept maps were co-developed: quality of life, HIV care, psychosocial and mental health, sexual health, reproductive health, and trans women’s health. Two summary diagrams were created encompassing the concept map themes, one for all women and one specific to trans women with HIV. Through our analysis, resilience, social support, positive healthy actions and women-centred HIV care were highlighted as strengths leading to well-being for women with HIV.
Concept mapping resulted in a composite summary of 60 peer-reviewed CHIWOS publications. This activity allows for priority setting to optimise care and well-being for women with HIV.
Vertigo is a prevalent and burdensome symptom. More than 80% of patients with vertigo are primarily treated by their general practitioner (GP) and are never referred to a medical specialist. Despite this therapeutic responsibility, the GP’s diagnostic toolkit has serious limitations. All recommended tests lack empirical evidence, because a diagnostic accuracy study on vestibular disorders (‘How well does test x discriminate between patients with or without target condition y?’) has never been performed in general practice. The VERtigo DIagnosis study aims to fill this gap.
We will perform a diagnostic accuracy study on vertigo of primary vestibular origin in general practice to assess the discriminative ability of history taking and physical examination. We will compare all index tests with a respective reference standard. We will focus on five target conditions that account for more than 95% of vertigo diagnoses in general practice: (1) benign paroxysmal positional vertigo, (2) vestibular neuritis, (3) Ménière’s disease, (4) vestibular migraine (VM) and (5) central causes other than VM. As these five target conditions have a different pathophysiology and lack one generally accepted gold standard, we will use consensus diagnosis as a construct reference standard. Data for each patient, including history, physical examination and additional tests as recommended by experts in an international Delphi procedure, will be recorded on a standardised form and independently reviewed by a neurologist and otorhinolaryngologist. For each patient, the reviewers have to decide about the presence/absence of each target condition. We will calculate sensitivity, specificity, predictive values, likelihood ratios and diagnostic ORs, followed by decision rules for each target condition.
The study obtained approval from the Vrije Universiteit Medical Center Medical Ethical Review Committee (reference: 2022.0817—NL83111.029.22). We will publish our findings in peer-reviewed international journals.
The impact of the COVID-19 pandemic on adolescent’s mental health and relationships has received growing attention, yet the challenges and support needs of adolescents living in existing deprivation are not well understood. The current qualitative study, part of a broader project cocreating mental health and life-skill workshops with young people, documents adolescents’ lived experience and support needs 4 years on from the COVID-19 pandemic.
20 semi-structured interviews and 6 focus groups were transcribed and thematically analysed in NVivo V.12 to inform codesigned workshops to support adolescents’ needs.
Islington borough in North London, United Kingdom.
20 adolescents aged 14–25 years (mean=18.3; 60% female, 60% white) from Islington with a history of difficulties (eg, mental health, deprivation, court order) were referred by Islington local authority teams to our study.
Thematic analyses revealed eight themes on adolescents’ COVID-19 experiences and five associated suggestions on ‘support needs’: health challenges and support; relationships and support; routines and support; educational challenges and learning support; inequality and support; distrust; loss of opportunities and grief.
In our qualitative study, adolescents spoke of positive reflections, challenges, and need for support 4 years on from the COVID-19 pandemic. Many adolescents shared their lived experiences for the first time with someone else and wished they would have the space and time to acknowledge this period of loss. Adolescents living with existing inequality and deprivation before the pandemic have reported sustained and exacerbated impacts during the pandemic, hence coproduced support for adolescents should be a priority.
To describe the current state of the literature on nurses' and midwives' knowledge, perceptions and experiences of managing parental postnatal depression (PPND).
The Joanna Briggs Institute scoping review method and the PRISMA extension for Scoping Reviews guided the work.
A systematic search of PubMed, CINAHL, Embase, MEDLINE, PsycINFO and Scopus databases was conducted in January and February 2023.
Peer-reviewed primary research articles published in English between 2012 and 2023 that involved nurses or midwives managing PPND were included. Rayyan was used to screen titles, abstracts and full-text articles. A spreadsheet was used to organize extracted data and synthesize results.
Twenty-nine articles met the inclusion criteria. Most study samples were of mothers, and few were from middle- and lower-income countries. Nurses and midwives lacked knowledge about PPND, yet they felt responsible for its management. Nurses and midwives faced significant organizational and systems-level challenges in managing PPND. However, nurses and midwives facilitated PPND care in collaboration with other healthcare providers.
The review highlights significant gaps in the nurses' and midwives' care of PPND. Educational programmes are necessary to increase nurse and midwife knowledge of PPND and strategies for its management, including facilitating collaboration across the healthcare system and eliminating organizational and systemic-related barriers. Additional focused research is needed on nurses' and midwives' knowledge, perception of and experience with PPND beyond mothers, such as with fathers, sexually and gender-minoritized parents and surrogate mothers. Finally, additional research is needed in middle- and lower-income countries where nurses and midwives may face a higher burden of and unique cultural considerations in managing PPND.
PPND can affect the parent's mental and physical health and relationship with their child. If left untreated, PPND can lead to long-term consequences, including child developmental delays, behavioural problems and difficulties with parental–child attachment.
This scoping review adheres to PRISMA Extension for Scoping Review guidelines and the Joanna Briggs Institute scoping review method.
This research is a scoping review of published peer-reviewed studies.
Systematic reviews are considered the highest level of evidence that can help guide evidence-informed decisions in nursing practice, education, and even health policy. Systematic review publications have increased from a sporadic few in 1980s to more than 10,000 systematic reviews published every year and around 30,000 registered in prospective registries.
A cross-sectional design and a variety of data sources were triangulated to identify the journals from which systematic reviews would be evaluated for adherence to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 reporting guidelines and scope. Specifically, this study used the PRISMA 2020 reporting guidelines to assess the reporting of the introduction, methods, information sources and search strategy, study selection process, quality/bias assessments, and results and discussion aspects of the included systematic reviews.
Upon review of the 215 systematic reviews published in 10 top-tier journals in the field of nursing in 2019 and 2020, this study identified several opportunities to improve the reporting of systematic reviews in the context of the 2020 PRISMA statement. Areas of priority for reporting include the following key areas: (1) information sources, (2) search strategies, (3) study selection process, (4) bias reporting, (5) explicit discussion of the implications to policy, and lastly, the need for (6) prospective protocol registration.
The use of the PRISMA 2020 guidelines by authors, peer reviewers, and editors can help to ensure the transparent and detailed reporting of systematic reviews published in the nursing literature.
Systematic reviews are considered strong research evidence that can guide evidence-based practice and even clinical decision-making. This paper addresses some common methodological and process issues among systematic reviews that can guide clinicians and practitioners to be more critical in appraising research evidence that can shape nursing practice.
To examine the relationship between racial/ethnic disparities and substance use behaviours (alcohol and tobacco use) and their impact on the sleep health of South Korean adolescents.
Secondary analysis of cross-sectional study data from the 2021 Korea Youth Risk Behaviour Web-based Survey dataset.
Given that Korean society has historically linked its racial/ethnic identity to a shared bloodline, we categorized 2644 adolescents from the Korea Youth Risk Behaviour Web-based Survey based on their racial/ethnic status, determined by their parents' birthplaces. Using multiple linear regression, we investigated whether the impact of racial/ethnic disparities on sleep health (sleep duration, debt, and timing) varies depending on substance use behaviours (alcohol and tobacco use) after controlling for age, sex, household economic status, depressed mood, suicidal ideation, perceived excessive stress, and anxiety level.
Despite no statistical differences in sleep health and the prevalence of substance use between racial/ethnic groups, racial/ethnic minority adolescents experienced greater sleep debt than racial/ethnic majority adolescents when consuming alcohol. Moreover, racial/ethnic minority adolescents were more likely to report psychosocial distress and had lower parental education level.
Racial/ethnic minority adolescents were more vulnerable to the detrimental effects of alcohol use on sleep health compared to racial/ethnic majority adolescents. This heightened vulnerability may be attributed to the more pronounced psychosocial challenges and the lower socioeconomic status of parents in the racial/ethnic minority group.
Racial/ethnic disparities are concerning in South Korea, particularly since the negative effects of substance use on sleep health are intensified among racial/ethnic minority adolescents. Nurses and other healthcare providers should recognize the importance of addressing the social disadvantages linked to racial/ethnic disparities. Beyond just advocating for the cessation of substance use, it is crucial to address these underlying issues to reduce sleep disparities among South Korean adolescents.
No patient or public contribution.
To learn from two jurisdictions with mature genomics-informed nursing policy infrastructure—the United States (US) and the United Kingdom (UK)—to inform policy development for genomics-informed oncology nursing practice and education in Canada.
Comparative document and policy analysis drawing on the 3i + E framework.
We drew on the principles of a rapid review and identified academic literature, grey literature and nursing policy documents through a systematic search of two databases, a website search of national genomics nursing and oncology nursing organizations in the US and UK, and recommendations from subject matter experts on an international advisory committee. A total of 94 documents informed our analysis.
We found several types of policy documents guiding genomics-informed nursing practice and education in the US and UK. These included position statements, policy advocacy briefs, competencies, scope and standards of practice and education and curriculum frameworks. Examples of drivers that influenced policy development included nurses' values in aligning with evidence and meeting public expectations, strong nurse leaders, policy networks and shifting healthcare and policy landscapes.
Our analysis of nursing policy infrastructure in the US and UK provides a framework to guide policy recommendations to accelerate the integration of genomics into Canadian oncology nursing practice and education.
Findings can assist Canadian oncology nurses in developing nursing policy infrastructure that supports full participation in safe and equitable genomics-informed oncology nursing practice and education within an interprofessional context.
This study informs Canadian policy development for genomics-informed oncology nursing education and practice. The experiences of other countries demonstrate that change is incremental, and investment from strong advocates and collaborators can accelerate the integration of genomics into nursing. Though this research focuses on oncology nursing, it may also inform other nursing practice contexts influenced by genomics.
Cardiovascular disease is a leading cause of global death. Prospective population-based studies have found that changes in retinal microvasculature are associated with the development of coronary artery disease. Recently, artificial intelligence deep learning (DL) algorithms have been developed for the fully automated assessment of retinal vessel calibres.
In this study, we validate the association between retinal vessel calibres measured by a DL system (Singapore I Vessel Assessment) and incident myocardial infarction (MI) and assess its incremental performance in discriminating patients with and without MI when added to risk prediction models, using a large UK Biobank cohort.
Retinal arteriolar narrowing was significantly associated with incident MI in both the age, gender and fellow calibre-adjusted (HR=1.67 (95% CI: 1.19 to 2.36)) and multivariable models (HR=1.64 (95% CI: 1.16 to 2.32)) adjusted for age, gender and other cardiovascular risk factors such as blood pressure, diabetes mellitus (DM) and cholesterol status. The area under the receiver operating characteristic curve increased from 0.738 to 0.745 (p=0.018) in the age–gender-adjusted model and from 0.782 to 0.787 (p=0.010) in the multivariable model. The continuous net reclassification improvements (NRIs) were significant in the age and gender-adjusted (NRI=21.56 (95% CI: 3.33 to 33.42)) and the multivariable models (NRI=18.35 (95% CI: 6.27 to 32.61)). In the subgroup analysis, similar associations between retinal arteriolar narrowing and incident MI were observed, particularly for men (HR=1.62 (95% CI: 1.07 to 2.46)), non-smokers (HR=1.65 (95% CI: 1.13 to 2.42)), patients without DM (HR=1.73 (95% CI: 1.19 to 2.51)) and hypertensive patients (HR=1.95 (95% CI: 1.30 to 2.93)) in the multivariable models.
Our results support DL-based retinal vessel measurements as markers of incident MI in a predominantly Caucasian population.