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Mapping fine-scale spatial risk patterns of gestational diabetes over time in Australia: a nationwide geospatial study

Por: Takele · W. W. · Lim · S. · Adhinugraha · K. · Taniar · D. · Dalli · L. L. · Boyle · J. A.
Objective

To examine the geospatial distribution of gestational diabetes mellitus (GDM) over time in Australia.

Design

An ecological study was conducted using data from the National Diabetes Services Scheme (GDM cases). Data at Statistical Area Level 2 (SA2) level, a medium-sized spatial unit, on population denominators (women who gave birth) were obtained from the Australian Bureau of Statistics. The spatiotemporal distribution of GDM was explored at the SA2 level over three periods: 2016–2017, 2018–2019 and 2020–2021. Hotspot and cluster analyses were undertaken using Getis-Ord Gi* and local Moran’s I statistics.

Setting

A nationwide study in Australia was conducted between 2016 and 2021.

Participants

Women diagnosed with GDM and those who gave birth were included.

Outcome measures

Age-standardised and crude incidence of GDM per SA2.

Results

During 2016–2021, 1 718 963 eligible women who gave birth in Australia were included. Hotspot areas of GDM were consistently observed in Victoria (Southwest and North Melbourne); Western Australia (South and Southwest Perth); Australian Capital Territory (ACT) (East and North Canberra); Queensland (North Brisbane) and New South Wales (West and Southwest Sydney and Southeast New South Wales). ACT (South Canberra), North Tasmania, Northern Territory (North Darwin) and Victoria (South East Melbourne) had new hotspot regions recorded in the last two consecutive study periods.

Conclusion

GDM incidence varies by geographical area over time, with hotspots in specific regions suggesting the need for geographically targeted policy interventions to curb the growing burden of GDM.

Adherence to the recommended diabetic retinopathy screening guidelines in pregnant women with pregestational diabetes: a cross-sectional survey study

Por: Widyaputri · F. · Rogers · S. L. · Nankervis · A. J. · Conn · J. J. · Shub · A. · Staffieri · S. E. · Sasongko · M. B. · Fagan · X. J. · Symons · R. C. A. · Lim · L. L.
Objective

Diabetic retinopathy (DR) in pregnancy can cause blindness. National guidelines recommend at least one eye examination in early pregnancy, then ideally 3-monthly, through to the postpartum for pregnant women with pregestational diabetes. Here we examined adherence rates, barriers and enablers to recommended DR screening guidelines.

Design

Cross-sectional survey study, as part of a larger prospective cohort study.

Setting

Participants were recruited from two tertiary maternity hospitals in Melbourne, Australia.

Participants

Of the 173 pregnant women with type 1 (T1D) or type 2 diabetes (T2D) in the main cohort study, with an additional four who participated solely in this survey study, 130 (74.3%) completed the survey.

Primary and secondary outcome measures

This study calculated rates of adherence to guideline-recommended DR screening schedules and collected data on the enablers and barriers to attendance using a modified Compliance with Annual Diabetic Eye Exams Survey. Each of the 5-point Likert-scale survey items was compared between adherent and non-adherent participants using the Wilcoxon rank-sum test and logistic regression models were constructed to quantify associations as ORs.

Results

A retinal assessment was undertaken at least once during pregnancy in 86.3% of participants, but only 40.9% attended during their first trimester and only 21.2% attended the recommended number of examinations. Competing priorities were the main barriers to adherence, with eye examinations ranked as the fourth priority (IQR 4th–5th) among other health appointments during pregnancy. Meanwhile, knowledge of the benefits of eye screening examinations, eye-check reminders and support from relatives was identified as enablers.

Conclusions

Despite the risk of worsening DR during pregnancy, less than half of the participants adhered to recommended screening guidelines, suggesting that eye health is not a priority. Proactive measures to integrate care are needed to prevent visual loss in this growing population.

Cardiometabolic function in Offspring, Mother and Placenta after Assisted Reproductive Technology (COMPART): a prospective cohort study

Por: Kjaer · A. S. L. · Vestager · M. L. · Blixenkrone-Moller · E. · Asserhoj · L. L. · Kloppenborg · J. T. · Lossl · K. · Ekelund · C. K. · Rode · L. · Hjort · L. · Hoffmann · E. R. · Lyng Forman · J. · Beck Jensen · R. · Pinborg · A.
Introduction

The Cardiometabolic function in Offspring, Mother and Placenta after Assisted Reproductive Technology (COMPART) study is a prospective cohort study aiming to explore health outcomes in mothers and children following assisted reproductive technology (ART), with a particular focus on frozen embryo transfer (FET) versus fresh embryo transfer (fresh-ET). The increasing prevalence of ART and FET emphasises the need to assess potential health risks associated with the procedures, both in pregnancy, such as pre-eclampsia and large for gestational age offspring, and in the children, such as obesity and cardiometabolic dysfunction.

Methods and analysis

The cohort will include 600 pregnant women, their potential partner and their offspring in a 1:1:1 ratio of pregnancies achieved after ART with FET, ART with fresh-ET and women who conceived naturally. The study will involve extensive data collection from electronic medical records; parental questionnaires; biochemical, genetic and epigenetic analyses in blood, urine and placental tissue; and medical imaging (fetal ultrasound and PEA POD scan) and clinical examinations. Outcomes are grouped into six work packages (WPs) related to fetal growth (WP1), pregnancy (WP2), placenta (WP3), offspring (WP4), genetics (WP5) and epigenetics (WP6).

Ethics and dissemination

The COMPART study aims to provide valuable insights into the impact of ART and FET on maternal and offspring health and the underlying mechanisms responsible. The study seeks to advance reproductive medicine, shape clinical practice and guidelines and ultimately ensure maternal-fetal health following ART. The study has been approved by the Danish Ethics Committee (H-23071266; February 2024).

Trial registration number

NCT06334003

Propofol-based versus sevoflurane-based anaesthesia for deceased donor kidney transplantation: the VAPOR-2 study protocol for an international multicentre randomised controlled trial

Por: Huisman · G. J. J. · Berger · S. P. · Thyrrestrup · P. S. · Hausken · J. · Veelo · D. P. · Guirado · L. · Pol · R. · Jensen · L. L. · Tonnessen · T. I. · Bemelman · F. J. · Facundo · C. · THE VAPOR-2 STUDY GROUP · Tamasi · K. · Lunter · G. · Jespersen · B. · Leuvenink · H. G. D. · Str
Introduction

Ischaemia reperfusion injury (IRI) is inevitable in kidney transplantation and negatively affects patient and graft outcomes. Anaesthetic conditioning (AC) refers to the use of anaesthetic agents to mitigate IRI. AC is particularly associated with volatile anaesthetic (VA) agents and to a lesser extent to intravenous agents like propofol. VA like sevoflurane interferes with many of the processes underlying IRI and exerts renal protective properties in various models of injury and inflammation. We hypothesise that a sevoflurane-based anaesthesia is able to induce AC and thereby reduce post-transplant renal injury, reflected in improved graft and patient outcome, compared with a propofol-based anaesthesia in transplant recipients of a deceased donor kidney.

Methods and analysis

Investigator-initiated, multicentre, randomised, controlled and prospective clinical trial with two parallel groups. The study will include 488 kidney transplant recipients from donation after brain death (DBD) or donation after circulatory death (DCD) donors. Participants are randomised in a 1:1 design to a sevoflurane (intervention) or propofol (control) group. The primary endpoint is the incidence of delayed graft function in recipients of DCD and DBD donor kidneys and/or 1-year biopsy-proven and treated acute rejection. Secondary endpoints include functional delayed graft function defined as failure of serum creatinine levels to decrease by at least 10% per day for three consecutive days; primary non-function is defined as a permanent lack of function of the allograft; length of hospital stay and postoperative complications of all kinds, estimated glomerular filtration rate at 1 week and 3 and 12 months calculated with the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) formula; readmissions at 3 and 12 months, graft survival and all-cause mortality at 12 months.

Ethics and dissemination

The study is approved by the local ethical committees and national data security agencies. Results are expected to be published in 2025.

Trial registration number

NCT02727296.

BREATHEIN: Better understanding obstructive REspiratory Airway disease Treatment and HEalth: a nationwide INvestigative survey in Denmark--a study protocol

Por: Hansen · K. K. · Pedersen · L. L. · Lokke · A. · Hilberg · O.
Introduction

Understanding patient perspectives on asthma and chronic obstructive pulmonary disease (COPD) is limited, with no prior studies employing such a large-scale, proactive survey to systematically target individuals with a confirmed prescription for inhalation medication. This study aims to explore how patients with asthma or COPD manage their lives, including treatment experiences, symptoms and impacts on daily life.

Methods and analysis

A nationwide survey will be launched in January 2025, targeting adults (≥18 years) in Denmark diagnosed with asthma or COPD and prescribed or dispensed inhalation medication between 1 October 2023 and 30 September 2024. Data from the Danish Health Data Authority’s Register of Medicinal Product Statistics will identify eligible individuals. The electronic survey will be distributed via e-Boks to approximately 450 000 individuals.

The questionnaire integrates validated tools—COPD Assessment Test, Modified Medical Research Council scale, EuroQol 5-Dimension 5-Level and Asthma Control Test—alongside expert-developed questions on symptoms, diagnosis, disease control, treatment and patient experiences. Questionnaire development included 10 cognitive interviews with patients from the Outpatient Clinic at Vejle Hospital.

Descriptive statistics will be used to analyse both continuous and categorical data, with sensitivity analyses conducted as well. Data management will be handled in Research Electronic Data Capture, and statistical analyses will be performed using Stata V.18.0.

Ethics and dissemination

The study is registered with the Danish Data Protection Agency (24/5229) and Open Patient Data Explorative Network (OP_2094) and follows the Declaration of Helsinki. Results will be published in peer-reviewed journals, presented at national and international conferences and shared through patient associations.

Food environment of traditional peoples and communities: a scoping review protocol

Por: Barbosa · B. B. · Tavares · N. H. C. · Adriano · L. S. · Mendes · L. L. · Carioca · A. A. F.
Introduction

Traditional peoples and communities (TPCs), such as indigenous peoples and quilombolas (communities descended from escaped African slaves), face challenges related to food security and the impact of the food environment on their health. Changes in food systems, urbanisation and loss of territorial rights have contributed to less healthy eating patterns, with increased consumption of ultra-processed foods and a higher prevalence of chronic non-communicable diseases. Despite this, there are gaps in knowledge about how the food environments of these communities are investigated, especially in relation to the physical, economic, political and sociocultural dimensions.

Methods and analysis

This scoping review will be conducted following the methodological framework developed by the Joanna Briggs Institute for scoping reviews, and its reporting will adhere to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses-Extension for Scoping Reviews checklist. A systematic search will be carried out in the following databases: PubMed, SciELO, Web of Science, Embase and EBSCO, using terms related to traditional populations and food environments. The studies to be included will be selected according to the inclusion and exclusion criteria defined based on the population, concept and context technique. The study population will include TPCs, such as indigenous peoples and quilombolas; the concept will address the food environment in its physical, economic, political and sociocultural dimensions; and the context will encompass studies conducted at a global level, without any restrictions on geographic location. The study type will include original articles and grey literature. The screening of studies will involve independent reviewers and predefined inclusion and exclusion criteria. Data synthesis will be presented in tables, including information on focus, geographic scope and methodology of the selected studies. The risk of bias will be assessed using the Risk of Bias in Non-randomised Studies of Exposure tool.

Ethics and dissemination

As the study does not involve the collection of primary data or human participants, it does not require ethical approval. The results will be submitted to peer-reviewed journals and presented at public health and nutrition conferences, contributing to the advancement of knowledge on food environments of TPCs.

Content validity of self-reports of excess skin after bariatric surgery: protocol for a Dutch cross-sectional study

Por: van Hogezand · L. L. · Dijksman · L. M. · Derksen · W. J. M. · Mink van der Molen · A. B. · Geenen · R.
Introduction

Body contouring surgery (BCS) can be applied to reduce the physical and mental burden of excess skin after massive weight loss. Self-reported outcomes of patients are used to assess this burden and to evaluate the effectiveness of BCS. The aim of this study is to clarify what is reflected in self-reports of excess skin after bariatric surgery. We hypothesise that the self-reported burden of excess skin is associated with both objectively assessed excess skin and the disposition to experience negative emotions.

Methods and analysis

This cross-sectional study will include 68 outpatients presenting at a plastic surgery clinic with a request for BCS. Patients fill out two questionnaires (the BODY-Q and the Sahlgrenska Excess Skin Questionnaire (SESQ)) to measure the size and burden of excess skin as well as the Big Five Inventory (BFI) to measure the disposition towards negative emotionality. Anonymised photographs of excess skin will be rated independently by four plastic surgeons using the Pittsburgh Rating Scale (PRS) Rainbow Classification to establish the objective amount of excess skin. Multiple linear regression analyses will be performed to identify the association of BODY-Q and SESQ scores with objective appraisals of excess skin by plastic surgeons, negative emotionality and demographics. Interobserver agreement for PRS Rainbow Classification will be established by Fleiss’ kappa.

Ethics and dissemination

Ethical approval was obtained from the regional medical ethics committee (METC; W20.258) and the institutional review board (Lokale Toetsing, St. Antonius Hospital in Nieuwegein, no. Z23.035). Informed consent of participants will be obtained. The results of this study will be submitted for publication in a peer-reviewed journal.

Enhancing cognitive function in breast cancer survivors through community-based aerobic exercise training: protocol for a Hybrid Type I effectiveness-implementation study employing a randomised controlled design

Por: Ehlers · D. K. · Austin · J. D. · Ernst · B. · Page · L. L. · Ofori · E. · Porter · G. C. · Fanning · J. · Hickman · G. · McKim · P. · Cole · M. · Donaldson · M. · Braden · B. B. · Kunze · K. L. · Butterfield · R. J. · Baxter · L. C. · Ahles · T. A. · Estabrooks · P.
Introduction

Despite growing evidence to characterise cancer-associated cognitive decline (CACD) in women with breast cancer, interventions to mitigate CACD are limited. Emerging evidence suggests aerobic exercise may enhance cognition after breast cancer diagnosis and treatment; yet, CACD remains an understudied outcome of exercise, and few high-quality studies have been conducted. In addition to knowledge gaps in effectiveness, the translation of exercise interventions to community settings remains challenging. The Breast cancer Reasoning and Activity INtervention (BRAIN) investigates the effectiveness of aerobic exercise training, delivered in a community-based setting, for improving cognitive function in women with breast cancer and gathers information on the implementation success of the intervention.

Methods and analysis

This Hybrid Type I effectiveness–implementation study is conducted at an academic medical centre in the southwestern United States in partnership with a non-profit, community health and wellness organisation. The study enrols 160 women diagnosed with stage I–IIIa breast cancer and within 3–36 months of treatment completion into a 1:1 randomised controlled trial. Individuals randomised to the exercise group receive a 6-month, individually tailored aerobic exercise programme delivered by exercise trainers employed at local community fitness centres. The programme is progressive in nature and designed to help participants achieve aerobic exercise levels consistent with guidelines for cancer survivors. Individuals randomise to the control group receive a 6-month health education control intervention delivered virtually by hospital-based health educators. Cognitive performance (primary), self-reported cognition, patient-reported outcomes, physical activity and cardiorespiratory fitness are measured at baseline, 6 months (postintervention) and 12 months (follow-up). Brain structure and function are measured via magnetic resonance imaging (MRI) at baseline and 6 months. Implementation outcomes are defined by the RE-AIM framework, which includes reach, effectiveness, adoption, implementation and maintenance. RE-AIM outcomes are measured at baseline, 6 months, 12 months and ongoing during the study.

Ethics and dissemination

This study was approved by the Mayo Clinic Institutional Review Board (#23-000020). All participants provide informed consent prior to participation. Findings will be disseminated to scientific, clinical and community audiences through manuscripts, presentations and newsletters.

Trial registration number

NCT04816006.

Puff and psychosis: a retrospective cohort analysis of psychiatric hospitalisations in patients with schizophrenia and nicotine use

Por: Lay · S. · Nguyen · L. L. · Yan · Y. · Chan-Golston · A. M. · De Santiago · A. · Sidhu · R. · Yasaei · R.
Objectives

The association between smoking and patients with schizophrenia has been established through epidemiological studies on various populations. This behaviour not only increases the risk of medical comorbidities associated with smoking, but it can also interfere with treatment and ultimately worsen prognosis. This study aims to determine if nicotine use affects the cumulative number of psychiatric hospitalisations in patients with schizophrenia.

Design

This is a retrospective cohort study using 2018–2023 electronic medical record data.

Setting

Data was collected at an inpatient psychiatric hospital in Central California.

Participants

There were a total of 825 patients with diagnoses of schizophrenia or schizoaffective disorder who were admitted to the mental health hospital between 2018 and 2023.

Primary and secondary outcome measures

The primary outcome of interest was the number of psychiatric hospitalisations observed among the patients who were smokers versus those who were non-smokers. Our secondary objective was to determine the prevalence of certain medical comorbidities between these two groups.

Results

60.7% of patients had a lifetime smoking history. Accounting for matching, patients who smoked had significantly (p

Conclusions

Patients with schizophrenia and a lifetime smoking history had significantly more hospitalisations compared with patients with schizophrenia who were non-smokers. This can inform disease course in vulnerable populations with a greater propensity to self-medicate with substances. However, further research should be conducted to investigate other factors that can affect this relationship.

Influence of concurrent oral calcium carbonate supplementation on steady-state pharmacokinetics of once daily oral raltegravir in persons with HIV: a protocol for a prospective open-label non-randomised study in Canada

Por: Teixeira Nunes Porto · L. L. · Doyle · M.-A. · Zhang · G. · Tremblay · N. · Yazji · B. · Kanji · S. · Cameron · D. W.
Introduction

Raltegravir is a potent HIV-integrase strand transfer inhibitor (INSTI). Despite its strong activity against HIV-1 strains resistant to other antiretroviral drug classes, it is usually used in combination with other antiretroviral drugs due to the empirical requirement for anti-HIV drug combinations to ensure effective anti-retroviral therapy (ART). As an early-arriving INSTI, raltegravir is clinically familiar for its safety, tolerability and treatment effectiveness. High-dose calcium carbonate formulated as an antacid (as opposed to a supplement formulation) taken orally together with raltegravir is known to reduce systemic raltegravir exposure due to chelation and reduced absorption. This study aims to assess the effect of daily calcium carbonate antacid as TUMS Ultra Strength (US) administration in lower doses, as currently used for oral calcium supplementation, on the steady-state pharmacokinetics (PKs) of once-daily oral raltegravir.

Methods and analysis

This is an open-label, three-treatment series in three periods in a single group, fixed-sequence PK study in 12 healthy adult volunteers with HIV on ART. Subjects will take 1200 mg of raltegravir single QD oral dose alone for 7 days (period one), then raltegravir 1200 mg with calcium carbonate 500 mg from day 8 to day 14 (period two) and raltegravir 1200 mg with calcium carbonate 1000 mg from day 15 to day 22 (period three). We will conduct serial PK sampling from observed dosing on days 7, 14 and 21, with 24-hour PK sampling scheduled for days 8, 15 and 22. Follow-up will continue until day 51.

Ethics and dissemination

This study will adhere to the ICH GCP Guidelines and the Declaration of Helsinki. Ethics approval was obtained from the Ottawa Health Science Network Research Ethics Board under study ID 20190750–01 hour. Informed consent will be obtained from all participants prior to enrolment. This protocol will be published in a peer-reviewed journal prior to the study’s completion and closure. Results generated from this activity will also be reported in a peer-reviewed journal.

Trial registration number

NCT04258475.

Cognitive deficits in treatment-resistant depression: protocol for a systematic review and meta-analysis

Por: Ronold · E. H. · Jensen · D. · Thorsen · A. L. L. · Raudeberg · R. · Oltedal · L. · Hammar · A. · Hirnstein · M. · Douglas · K. · Porter · R. · Kiebs · M.
Introduction

Major depressive disorder (MDD) is a major global healthcare challenge. This is, in part, due to the lack of treatment response and chronic course of MDD. Such a course of illness is often termed treatment-resistant depression (TRD) and is seen in over one-third of people with MDD. Reasons for treatment resistance are not well established, nor is the definition of TRD. Duration and severity of depression, however, are associated with TRD and are also associated with cognitive deficits. Thus, TRD could be particularly prone to cognitive deficits and at heightened risk for neuroprogression. While the cognitive profile of MDD has been investigated in several systematic reviews, no systematic review of cognition in TRD exists to date. The present study will fill this gap in the literature. It is expected that TRD will show more severe cognitive deficits than generally reported in MDD and deficits in all cognitive functions are expected.

Methods and Analysis

A systematic review following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines will be performed of the databases Embase, Pubmed/MEDLINE, PsychINFO and Cochrane including peer-reviewed studies on humans using standardised cognitive tests. Pilot searching was performed in January 2025 and the full search will be commenced in June 2025, with additional searches following completion. Where sufficient data are reported, a meta-analysis comparing deficits in TRD with MDD and healthy control participants will be performed; alternatively, effects based on norms will be calculated. Meta-regression, subgroup and sensitivity analyses will be conducted to explore moderators that are sufficiently reported in the literature. The quality of studies will be assessed by the Newcastle-Ottawa Scale.

Ethics and dissemination

Ethical approval is not necessary to perform the study, and results will be presented at a suitable conference and published in a peer-reviewed journal.

Prospero registration number

CRD42024538898.

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