Loneliness and social isolation are critical public health issues linked to significant adverse health outcomes and increased healthcare utilisation, including visits to the emergency department (ED). The ED often serves as a primary societal safety net, providing care for vulnerable populations who may be disproportionately affected by these conditions. In fact, loneliness and social isolation might be the underlying reasons they presented to the ED in the first place either consciously or not. For such individuals, the ED encounter may represent a rare point of human contact, yet the stressful and depersonalising nature of the ED environment may paradoxically exacerbate their sense of isolation. Furthermore, ED staff may lack the training and awareness of the scope of the problem to properly screen for loneliness and address it. Yet, the compounded impact of the ED experience on lonely or socially isolated patients and the relationship between loneliness and healthcare utilisation remains poorly understood. This paper presents a protocol for a scoping review designed to systematically map the existing evidence on the experiences of these patients and the perspectives of the clinicians who care for them.

This scoping review will be conducted following the Arksey and O’Malley methodological framework in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR). The findings will be reported according to the Extension to the PRISMA Statement for Reporting Literature Searches in Systematic Reviews (PRISMA-S; see ). A comprehensive search will be performed across five electronic databases (PubMed, Embase, Scopus, Web of Science, CNKI) and grey literature sources. Studies published in English or Chinese that address loneliness or social isolation in the ED context, from the perspective of adult or paediatric patients or clinical staff, will be included. A novel, artificial intelligence (AI)-assisted screening process will be utilised for initial relevance assessment, followed by full manual screening and data extraction by two independent reviewers to ensure rigour and mitigate bias. Findings will be synthesised using a narrative approach and thematic analysis to identify key concepts, themes and existing gaps in the literature.

As this study synthesises data from previously published literature, it does not require formal ethical approval. The findings will be disseminated through a manuscript submitted to a peer-reviewed, open-access journal. The aim is to provide an evidence-based roadmap to guide future research, inform policy and support the development of interventions designed to improve care and outcomes for this vulnerable population within the acute care setting.

The review has been registered at Open Science Framework, DOI 10.17605/OSF.IO/MBVSR.

Asthma is one of the most prevalent long-term health conditions affecting pregnant women. Poorly controlled asthma during pregnancy is associated with adverse maternal and fetal outcomes and may predispose offspring to long-term respiratory morbidity. The current ‘one size fits all’ approach to asthma management during pregnancy is not optimally effective for approximately half of the pregnant women with asthma. A personalised medicine approach to managing airways disease is required. The treatable traits approach focuses on the identification and treatment of traits in the pulmonary, extra-pulmonary and behavioural domains, which are identifiable, measurable, clinically relevant (linked to exacerbation risk or poor asthma control) and treatable. This manuscript outlines the protocol for the Treatable Traits for Asthma Management in Pregnancy (TTAP) study. The purpose of the TTAP study is to prospectively determine the prevalence of a range of treatable traits from these three domains in pregnant women with asthma and determine which traits are associated with exacerbation risk, poor asthma control and poor asthma-related quality of life. Additionally, this study will assess differences in trait prevalence and clinical relevance in pregnant women from regional versus metropolitan hospitals in Australia and in different antenatal models of care.

The TTAP study is a multicentre, prospective observational cohort study. Study participants are pregnant women with asthma attending antenatal clinics at 10 metropolitan and regional hospitals (public and private) in NSW and Victoria, Australia. Assessment of traits from the pulmonary, extrapulmonary and behavioural domains as well as asthma outcomes is conducted at three gestational timepoints: 12–16 weeks, 22–26 weeks and 32–36 weeks of pregnancy. A follow-up assessment of asthma outcomes is conducted at 2–4 weeks postpartum. The outcomes assessed are asthma exacerbations requiring medical intervention (primary outcome), asthma symptom control and asthma-related quality of life. Traits and outcomes will be assessed using questionnaires, direct questioning, measurement of biomarkers, physical measurements and assessment of routinely collected data from medical records.

The Hunter New England Human Ethics Committee (2024/ETH01289) has approved the TTAP study protocol. Outcomes will be published in peer-reviewed journals, presented at scientific conferences and disseminated online to participants, clinicians and other pregnant women with asthma and their families via the Asthma in Pregnancy Toolkit website https://asthmapregnancytoolkit.org.au/.

Academic medical careers remain marked by persistent gender inequalities, despite the growing feminisation of the medical workforce. The objective of this study was to examine whether gender differences exist in key individual and institutional determinants of academic medical career aspirations among medical residents, including research motivation, mentoring, work centrality, self-efficacy, perceived discrimination and stress.

This was a national cross-sectional online survey.

Multicentre study conducted across 36 medical schools in France.

A total of 1570 medical residents (997 women and 573 men) voluntarily participated between November 2022 and February 2023. All participants completed validated self-report questionnaires. There were no exclusion criteria beyond being enrolled in a French residency programme.

Attitudes towards research (interest, motivation, significance) were measured using the Scale of Attitudes towards Research. Mentoring was assessed with the Mentor–Mentee Perception Questionnaire, work centrality with Hirschfeld and Feild’s scale, self-efficacy with the General Self-Efficacy Scale, perceived discrimination with the Sexual Harassment and Discrimination Experiences of Academic Medical Faculty instrument and stress with the Perceived Stress Scale. Gender differences were analysed using t-tests or ² tests with Holm-Bonferroni corrections for multiple comparisons.

Compared with men, women reported lower research motivation (mean (SD) 21.0 (5.5) vs 22.8 (5.5); p_adj=0.011), lower research interest (27.1 (5.5) vs 28.1 (5.7); p_adj=0.011), lower work centrality (26.7 (7.0) vs 28.2 (8.1); p_adj=0.011) and lower self-efficacy (28.3 (5.2) vs 29.9 (5.0); p_adj=0.011). Women were less likely to report having a mentor (38.5% vs 44.5%; p_adj=0.02). They also reported substantially higher levels of experienced gender discrimination (22.8% vs 3.8%; p_adj=0.005), sexual harassment (57.7% vs 18.2%; p_adj=0.005) and perceived stress (8.48 (3.29) vs 7.27 (3.43); p_adj=0.011)

Gender differences were observed across several individual and institutional factors associated with academic medical career aspirations. Reduced access to mentoring and greater exposure to discrimination and stress among women may contribute to lower research motivation and self-efficacy. These findings highlight the need for institutional strategies addressing mentoring, workplace culture and equity to support gender parity in academic medicine.

OSF preregistration for this study is available at https://osf.io/9yseq/?view_only=1c72743f542b402ba67beed6908e597d

Mental health problems among undergraduate medical students are a major global public health concern that emerge early during training and are shaped by demanding educational environments, emotional stressors and organisational pressures. Although research has expanded rapidly, the literature remains fragmented across themes, regions and methods. This scoping review aims to map the global quantitative literature on medical students’ mental health and identify gaps in scope, geography, methodology and equity.

This scoping review will be conducted in accordance with the Joanna Briggs Institute methodological guidance and reported in accordance with PRISMA-ScR (Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews) guidelines. We will include quantitative studies assessing mental health among undergraduate medical students. MEDLINE (Ovid), Web of Science (Clarivate), the Cochrane Library (Wiley) and PsycINFO (Ovid) will be searched without date or language restrictions using a keyword-based search strategy. Two reviewers will independently screen titles, abstracts and full texts and extract data using a standardised form. Data will include publication year, country, study design, sample size, mental health measures, thematic domains and patterns of collaboration. Mental health domains will be classified using an a priori thematic framework encompassing psychological symptoms and distress, psychological resources, academic environment, social support and physical health and lifestyle factors. Equity-related variables (sex, gender identity, sexual orientation, race/ethnicity, socioeconomic status) will be operationalised based on analytical use. Results will be synthesised descriptively using tables and visualisations.

Ethical approval is not required. Findings will be disseminated through publication and presentations. The dataset and code will be openly available on publication.

Protocol registration will be made available online via the Open Science Framework (doi:10.17605/OSF.IO/2EHNU).

As populations age and climate variability intensifies, seasonal migration has emerged as a strategy among older adults to reduce exposure to climatic extremes and optimise living conditions. In China, millions of older adults migrate annually between cold northern and tropical southern regions, providing a natural setting to examine the health effects of seasonal migration. The Frigid-Tropical Migratory Population Health (ftMPH) cohort was established to assess the short- and long-term health effects of this migration and the underlying biological, behavioural and social pathways.

The ftMPH cohort is a prospective, dynamic cohort jointly conducted in Heilongjiang (a cold region) and Hainan (a tropical region) in China, with a planned sample size of approximately 26 000 participants. Adults aged ≥60 years are recruited and classified into four subcohorts: cold-origin seasonal migrants, cold-region residents, tropical-origin seasonal migrants and tropical-region residents. Baseline assessments include questionnaires, clinical examinations, biospecimen collection and environmental exposure measurements. Each migration cycle is assessed at predefined time points spanning the departure and return phases. Migration exposure will be updated longitudinally at each follow-up interval.

The primary outcome is the incidence of major cardiovascular disease events, including non-fatal myocardial infarction, coronary revascularisation, stroke and cardiovascular mortality. Secondary outcomes include non-cardiovascular mortality, chronic disease events, healthcare utilisation and ageing-related measures. Time-to-event analyses will be performed using Cox proportional hazards models. Inverse probability of treatment weighting (IPTW) will be used to control for baseline confounding, with stabilised weights and covariate balance assessed using standardised mean differences. Longitudinal changes in repeated measures will be analysed using mixed-effects models.

Ethical approval was obtained from the Ethics Review Committee of Harbin Medical University (approval No HMUIRB2024029PRE) and the Ethics Review Committee of Hainan Medical University (approval No HYMLL-2025-102). Findings will be disseminated through peer-reviewed publications, conference presentations and policy or technical reports.

The ftMPH cohort is registered with the Chinese Clinical Trial Registry (ChiCTR2500102337; registered on 13 May 2025).

Spinal cord injury (SCI) impairs autonomic functions, which are ranked among the highest priorities for recovery. The loss of autonomic control, including bowel, bladder, sexual and cardiovascular functions, interferes with rehabilitation and decreases health-related quality of life (HRQoL). Preliminary evidence indicates that non-invasive transcutaneous spinal cord stimulation (TCSCS) has the potential to improve autonomic stability in people with SCI. However, the optimal stimulation site for improving autonomic responses remains to be determined. This pilot randomised clinical trial aims to explore the efficacy of non-invasive mid-thoracic and lumbosacral TCSCS (proof-of-concept) for blood pressure stability (orthostatic hypotension and autonomic dysreflexia burden) alongside end-organ autonomic functions (lower urinary tract, bowel and sexual function) and HRQoL.

30 participants with chronic (>1 year) motor-complete SCI (American Spinal Injuries Association Impairment Scale A and B) at or above T6 will be enrolled in this open-label, two-arm randomised pilot clinical trial. Participants will be block randomised into either the mid-thoracic or lumbosacral TCSCS group. Participants will then undergo 8 weeks of TCSCS (3 times per week for 60 min; 24 sessions total) while in a seated position. Post-treatment effects will be recorded following the 8-week intervention and follow-up effects will be recorded 8 weeks after the end of the intervention. Primary and secondary outcomes will assess resting blood pressure, autonomic dysreflexia, orthostatic hypotension and lower urinary tract, bowel and sexual functions as well as HRQoL.

This study is approved by The University of British Columbia’s Clinical Research Ethics Board (UBC CREB H22-00365), and by Health Canada for Investigational Testing Authorisations (ITA) for Class II medical devices used in this trial (ITA#346875 TESCoN; ITA#381 154 SCONE). The findings will be disseminated through peer-reviewed publications, conferences, seminars and SCI community outreach.

NCT05369520.

Geriatric distal femur fractures are associated with mortality rates exceeding 20%, comparable to hip fractures. Traditional single implant fixation often requires weight-bearing restrictions that delay recovery. This pilot study aims to assess the feasibility of conducting a multicentre randomised controlled trial comparing dual vs single implant fixation for geriatric distal femur fractures.

This multicentre, prospective, randomised controlled pilot trial will enrol 80 participants aged 60 years or older with displaced distal femur fractures at five US level 1 trauma centres. Patients will be randomly allocated 1:1 to receive either single implant (lateral plate or retrograde nail) or dual implant (nail-plate or dual plate) fixation. All patients will be permitted immediate weight-bearing. The primary outcome is feasibility assessed through enrolment rate (80 patients in 12 months), protocol adherence (≥90%) and follow-up retention (≥85% at 12 months). Secondary outcomes include post-surgical mobility (AM-PAC, TUG), patient-reported outcomes (PROMIS-PF, PROMIS-29), mortality (90-day and 1 year) and complication rates. Analyses will be on an intention-to-treat basis.

The protocol was approved by the University of Utah Institutional Review Board (IRB_00149119) and IRBs at all participating centres. Written informed consent will be obtained from participants or legally authorised representatives. Findings will be disseminated through peer-reviewed publications and conference presentations.

NCT05292313.

Chronic obstructive pulmonary disease (COPD) has an unpredictable clinical course, causing difficulties in short-term mortality prediction, overtreatment and delayed palliative care. Existing prediction models are limited and lack applicability to Chinese elderly patients with advanced COPD. Given the heavy disease burden and limited palliative care in China, we designed this multicentre cohort study to develop a 6-month mortality prediction model for elderly patients with advanced COPD to aid risk stratification, timely palliative care and efficient healthcare resource allocation.

Patient recruitment has been ongoing since May 2024 and will be completed by December 2026, with a 12-month follow-up to be completed by December 2027. Eligible patients are being enrolled, and multidimensional baseline data including demographic characteristics, clinical indicators, laboratory results, comprehensive geriatric assessment and COPD-specific prognostic factors are being systematically collected. All participants will receive 12 months of standardised follow-up (monthly for the first 6 months and quarterly thereafter) to monitor 6-month all-cause mortality (primary outcome), as well as survival duration, end-of-life healthcare utilisation and do-not-resuscitate status (secondary outcomes). After completion of data collection, we will employ multiple machine learning algorithms to develop and internally validate a 6-month mortality prediction model with pre-specified centres reserved for external validation. Model performance will be evaluated by discrimination and calibration and head-to-head comparisons with the Body Mass Index, Airflow Obstruction, Dyspnoea and Exercise Capacity (BODE) and Age, Dyspnoea and Airflow Obstruction (ADO) indices will be conducted to verify its clinical value. The findings will provide a China-specific prediction tool for elderly patients with advanced COPD to guide clinical intervention, palliative care referral and healthcare resource allocation.

This study was approved by the Biomedical Ethics Review Committee of West China Hospital, Sichuan University (No. 2024-2662) and registered at ChiCTR2500100351. Informed consent is being obtained from all participants. Results will be published in peer-reviewed journals and presented at academic conferences.

ChiCTR2500100351.

This study aimed to identify the factors that influence access to diabetic retinopathy screening (DRS).

This is a qualitative case study.

Township health units in Shaoguan City, Guangdong Province, China.

This study included two representative patient groups (n=15) and five health-staff groups (n=42).

Focus group discussions were guided by a female ophthalmologist and other ophthalmology staff to determine the contextual factors influencing DRS uptake in people with diabetes mellitus in Qujiang District, Shaoguan City, southern China. Directly observed treatment and short-course (DOTS) components for the assessment of tuberculosis services were referred to for health structure when themes were extracted using deductive thematic analysis.

By referring to DOTS components related to the government, case detection, treatment, drug supply and recording system, we identified 31 factors associated with DRS uptake. Among these, six were from the perspective of service users whereas the remaining 25 were related to providers. From these factors, 10 modifiable themes pertained to policy, financing, interdepartmental coordination, hospital preparedness, primary healthcare staff training and public awareness through health education and quality enhancement of public health services. Two unmodifiable factors were also extracted: discomfort from pupil dilation during the examination and long travel distance to the facility.

This analysis identified contextual factors influencing DRS uptake, including policy, financing and public awareness, which, if addressed, could significantly enhance future screening uptake and disease management.

Individuals with end-stage kidney disease (ESKD), whether receiving dialysis or conservative care, experience high symptom burden and limited life expectancy, indicating substantial palliative care needs. Integrating palliative care into kidney care is vital for comprehensive ESKD management, but access remains uneven across sociodemographic groups. Identifying and addressing these disparities is key to ensuring equitable care and improving patient outcomes. This study aims to explore sociodemographic factors associated with specialist palliative care utilisation among people with ESKD.

This study protocol outlines a scoping review of peer-reviewed and grey literature using an established methodological framework by the Joanna Briggs Institute (JBI), and reporting will adhere to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews. Relevant literature will be identified through a multi-database (Ovid MEDLINE, Embase, CINAHL, PsycINFO) and grey literature search strategy designed alongside a health sciences librarian. To be included, articles must involve individuals with ESKD and report on how sociodemographic factors influence access to and utilisation of specialist palliative care services. Results of the search will be screened independently by two reviewers and data from included studies will be extracted independently and in duplicate. A narrative and thematic analysis will be conducted to identify key themes related to sociodemographic influences on specialist palliative care access and utilisation among individuals with ESKD, with particular attention to differences between kidney care modalities (dialysis vs conservative care) and the extent to which intersectionality of sociodemographic factors has been examined.

Ethics approval is not required for this scoping review. Findings will be submitted for publication in a peer-reviewed journal. Results will identify patient-related factors influencing access to specialist palliative care in ESKD and remaining gaps in the literature, informing future research and policy to support equitable care.