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Improving the composition of donor milk using machine learning and optimisation techniques

by Jacqueline Muts, Danée Knevel, Dick den Hertog, Rachel K. Wong, Timothy C.Y. Chan, Britt J. van Keulen, Johannes B. van Goudoever, Chris H.P. van den Akker

Background and aims

The macronutrient composition of donor human milk (DHM) can vary substantially due to several factors such as maternal age, diet, and lactation duration. However, consistent macronutrient levels in DHM facilitate the administration of the required amounts to preterm infants. The current pooling strategy at most human milk banks combines milk from different batches from a single donor. This study aims to stabilize the macronutrient quality of DHM by pooling milk from different donors by utilizing machine learning prediction and optimisation techniques.

Methods

The current pooling strategy is compared with a new theoretical approach that pools milk batches from up to 5 donors. To predict the crude protein and energy content, we used the following variables: body mass index, the donor’s diet (vegetarian or non-vegetarian), maternal age, full-term or preterm delivery, lactation stage, and volume pumped. These predictions are then used within an optimisation model to create milk pools that minimize the deviations from the target macronutrient levels (1.0 g protein/100 mL and 70 kcal/100 mL).

Results

The prediction model is based on 2236 created single-donor pools from 480 donors. Random forest regression models provided the most accurate predictions of macronutrient content. The new pooling strategy using multiple donors shows reduced deviations from target values compared to the current single-donor approach (average total absolute deviation 0.402 versus 0.664).

Conclusion

This study proves the potential of data-driven methods to improve operational efficiency in human milk banks, and improving the consistency of donor human milk.

Public versus private clinical radiography training in Lagos State, Nigeria: a comparative cross-sectional survey of associations with graduate self-perceived competence and practice readiness

Por: Udo · E. O. · Emordi · O. R. · Kalu · E. I. · Enebeli · U. U. · Uzochukwu · B. · Kalu · F. A. · Igwe · P. C. · Kalu · J. J. · Kalu · B. O. · Cherima · Y. J. · Nwokenna · U. S. · Hassan · R. K. · Amadi · A. N.
Objectives

To compare clinical radiography training experiences (structure, resources, participation, feedback) and self-perceived competence/practice readiness between public and private radiography centres in Lagos State, Nigeria.

Design

Comparative cross-sectional survey design from August to October 2025 using a validated self-administered questionnaire distributed in person during departmental seminars and clinical debriefings at University of Lagos-affiliated centres.

Setting

Centre-based settings at public and private radiodiagnostic centres.

Participants

A total of 260 final-year students and recent graduates, 130 each from public and private radiodiagnostic centres. Inclusion criteria included: age ≥18 years, with ≥6 months clinical exposure, from centres affiliated to the University of Lagos. All participants completed the self-administered questionnaire. There were no interventions.

Primary and secondary outcome measures

The primary outcome was the self-perceived competence/practice readiness, and the secondary was participation, extent and feedback mechanisms, measured as planned without protocol deviations. All variables were measured using validated items in the questionnaire.

Results

Private centres significantly outperformed public centres in hands-on practice and feedback, with higher self-perceived competence (mean 35.6±5.7 vs 32.8±6.4; p=0.001). There were no significant differences in training structure (p=0.78). Public centres reported higher patient loads (86.2% vs 68.5%; p=0.001) but lower equipment availability (47.7% vs 72.3%; p

Conclusions

Private centres were associated with higher self-perceived competence and readiness, better resources and feedback, while public centres offered greater patient volumes. Hybrid placements and targeted infrastructure investment are recommended to help address disparities in perceived readiness.

Identifying emotional variations in Spanish oncology patients during treatment decision consultations: a qualitative study

Por: Sanudo · Y. · Aguado-Gonzalez · L. · Medina Castillo · A. · Sierra-Perez · J.
Objectives

This qualitative study aims to identify which themes cause the most emotional variation in patients’ decisions about cancer treatment. Patients’ emotional variations are analysed to detect negative and positive variations to certain themes during the consultations. This analysis helps to detect what themes or elements affect patients’ experiences.

Design and settings

A total of 31 clinical consultations from cancer care pathways were recorded, transcribed and analysed. Patients were followed up until they decided and started treatment for their cancer. An inductive content analysis is followed to interpret patients’ emotional variations. All patients were from Hospital Universitario Miguel Servet of Zaragoza, Spain.

Participants

Twelve patients participated in the study, consisting of eight with breast cancer and four with melanoma. Of these patients, nine were female and three were male. Eligible participants were required to be new to the care pathways or to have used them more than 10 years ago. Participants were also required to be aged 18 or older, be fluent in Spanish and be available to participate for 3 months. Participants were excluded if the authors or oncologists noticed poor health conditions that could be exacerbated by the stress and additional effort involved in participating in the study.

Results

Patients’ emotional variations identify five main themes: clinical history, cancer diagnosis, discussion of possible treatment choice, side effects (possible side effects of the selected treatment) and next steps (require complementary medical tests and more consultations to decide the treatment). Most of the emotional variations detected were negative and were mostly grouped into the categories of treatment, side effects and next steps. The most pronounced negative variations were related to delays in starting treatment and the possibility of hair loss.

Conclusions

The themes and emotional variations identified in this study can help to understand patients’ experiences during their initial oncology consultations. These results represent a significant step towards enhancing communication and the patient experience within oncology practices. Oncologists could use these data and procedures to identify where patients experience negative emotions and respond appropriately.

Femoral radiographic indices for pre-operative osteoporosis screening in postmenopausal female patients undergoing total hip arthroplasty for osteoarthritis

by Masanori Nishi, Yasushi Yoshikawa, Yuki Usui, Hajime Nishida, Shota Nakamura, Koichiro Tashiro, Yoshifumi Kudo

The purpose of this study was to investigate the correlation between femoral morphological indices from anteroposterior hip radiographs and dual-energy X-ray absorptiometry-assessed bone mineral density in postmenopausal female patients undergoing primary total hip arthroplasty for hip osteoarthritis. We also evaluated the impact of hip deformity on these correlations and the diagnostic cut-off values for osteoporosis. This retrospective study, conducted at a single institute (February 2018 to July 2024), reviewed the data of postmenopausal patients (>50 years old) with hip osteoarthritis who underwent total hip arthroplasty. Patients with a history of hip surgical procedures, infection, metabolic bone disease, or inadequate imaging findings were excluded. Dual-energy X-ray absorptiometry was used to assess bone mineral density at the femoral neck, total hip, lumbar spine, and distal radius. Five femoral indices were measured: the canal-to-calcar ratio, canal flare index, cortical thickness index, canal diaphysis ratio, and canal bone area ratio. Analyses included Pearson’s correlation and receiver operating characteristic curve analysis. Moderate correlations were observed between total hip bone mineral density and indices in 95 hip osteoarthritic joints (all Tönnis grade 3) and 86 normal joints. The canal bone area ratio had the strongest correlation (hip osteoarthritis: r = −0.61; normal: r = −0.62; p 

Human emotional odours influence horses’ behaviour and physiology

by Plotine Jardat, Alexandra Destrez, Fabrice Damon, Noa Tanguy-Guillo, Anne-Lyse Lainé, Céline Parias, Fabrice Reigner, Vitor H. B. Ferreira, Ludovic Calandreau, Léa Lansade

Olfaction is the most widespread sensory modality animals use to communicate, yet much remains to be discovered about its role. While most studies focused on intraspecific interactions and reproduction, new evidence suggests chemosignals may influence interspecific interactions and emotional communication. This study explores this possibility, investigating the potential role of olfactory signals in human-horse interactions. Cotton pads carrying human odours from fear and joy contexts, or unused pads (control odour) were applied to 43 horses’ nostrils during fear tests (suddenness and novelty tests) and human interaction tests (grooming and approach tests). Principal component analysis showed that overall, when exposed to fear-related human odours, horses exhibited significantly heightened fear responses and reduced interaction with humans compared to joy-related and control odours. More precisely, when exposed to fear-related odours, horses touched the human less in the human approach test (effect size: Rate Ratio(RR)=0.60 ± 0.24), gazed more at the novel object (RR = 1.32 ± 0.14), and were more startled (startle intensity – Cohen’s d = −0.88 ± 0.39; and maximum heart rate – Cohen’s d = 1.16 ± 0.47) by a sudden event. These results highlight the significance of chemosignals in interspecific interactions and provide insights into questions about the impact of domestication on emotional communication. Moreover, these findings have practical implications regarding the significance of handlers’ emotional states and its transmission through odours during human-horse interactions.

Evaluating the impact of a national brain health education course for older adults with intellectual and developmental disabilities and caregivers: Brain Health-IDD Program protocol

Por: Lunsky · Y. · Bobbette · N. · Chiu · M. · Thakur · A. · Patel · P. · Volpe · T. · Balogh · R. · Baskin · A. · Beaudoin · M.-J. · Dever · M. J. · Durbin · A. · Fogle · A. · Kelly · C. · Lake · J. · Lefkowitz · G. · Mallett · H. · McCabe · J. · Noonan · J. · Selick · A. · Shooshtari · S. · Socka
Introduction

Adults with intellectual and/or developmental disabilities (IDD) experience higher rates of age-related health concerns, including dementia, than adults without disabilities. Despite this, current efforts to support brain health in ageing have often excluded this population. To address this gap, we will codesign, codeliver and evaluate a national virtual brain health education programme, Brain Health-IDD, for ageing individuals with IDD, family caregivers and health and social care providers.

Methods and analysis

This study will evaluate the Brain Health-IDD Program, an interactive virtual psychoeducation course codesigned and coled by an interdisciplinary team of clinicians and people with lived experience. Three participant groups will be recruited from across Canada: adults with IDD, aged 40 years and older; family caregivers who have a family member with IDD aged 40 years and older or who are themselves aged 60 years and older; and health or social service providers who support adults with IDD aged 40 years and older. Outcomes will be measured at baseline, postcourse and 3-month follow-up. Data will be collected through structured surveys, including both closed and open-ended questions, and focus group interviews.

Primary outcomes are participation, satisfaction and changes in knowledge and self-efficacy related to brain health among the three participant groups. Secondary outcomes for both adults with IDD and family caregivers include changes in health-related behaviours (social connections, sleep hygiene and physical activity), physical health, mental wellbeing, resilience and whether cognitive screening is initiated for adults with IDD and for caregivers. For health and social service providers, secondary outcomes include changes in brain health promotion practices and whether cognitive screening for older adults with IDD is initiated.

Analysis of open-text survey responses and qualitative data from focus group interviews will explore the experiences of participants with the Brain Health-IDD Program.

Ethics and dissemination

Institutional ethics approval was obtained from the Centre for Addiction and Mental Health Research Ethics Board. Programme findings and resources will be shared with advocacy groups, disability agencies, family caregiver organisations, clinicians and policymakers in the fields of disability, health and ageing at the provincial, national and international levels.

Efficacy and safety of microbiota-targeted therapeutics in autoimmune and inflammatory rheumatic diseases: protocol for a systematic review and meta-analysis of randomised controlled trials

Por: Kragsnaes · M. S. · Gilbert · B. T. P. · Sofiudottir · B. K. · Rooney · C. M. · Hansen · S. M.-B. · Mauro · D. · Mullish · B. H. · Bergot · A.-S. · Mankia · K. S. · Goel · N. · Bakland · G. · Johnsen · P. H. · Miguens Blanco · J. · Li · S. · Dumas · E. · Lage-Hansen · P. R. · Wagenaar
Introduction

An abnormal composition of gut bacteria along with alterations in microbial metabolites and reduced gut barrier integrity has been associated with the pathogenesis of chronic autoimmune and inflammatory rheumatic diseases (AIRDs). The aim of the systematic review, for which this protocol is presented, is to evaluate the clinical benefits and potential harms of therapies targeting the intestinal microbiota and/or gut barrier function in AIRDs to inform clinical practice and future research.

Methods and analysis

This protocol used the reporting guidelines from the Preferred Reporting Items for Systematic Review and Meta-Analysis Protocol. We will search Embase (Ovid), Medline (Ovid) and the Cochrane Library (Central) for reports of randomised controlled trials of patients diagnosed with an AIRD. Eligible interventions are therapies targeting the intestinal microbiota and/or gut barrier function including probiotics, synbiotics, faecal microbiota transplantation, live biotherapeutic products and antibiotics with the intent to modify disease activity in AIRDs. The primary outcome of the evidence synthesis will be based on the primary endpoint of each trial. Secondary efficacy outcomes will be evaluated and selected from the existing core domain sets of the individual diseases and include the following domains: disease control, patient global assessment, physician global assessment, health-related quality of life, fatigue, pain and inflammation. Harms will include the total number of withdrawals, withdrawals due to adverse events, number of patients with serious adverse events, disease flares and deaths. A meta-analysis will be performed for each outcome domain separately. Depending on the type of outcome, the quantitative synthesis will encompass both ORs and standardised mean differences with corresponding 95% CIs.

Ethics and dissemination

No ethics approval will be needed for this systematic review. We will follow the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines to disseminate the study results through a peer-reviewed publication.

PROSPERO registration number

CRD42025644244.

Participants experiences with the Delphi method: an online evaluation of a three-round Delphi across German-speaking countries

Por: Niederberger · M. · Dieudonne · J. · Schifano · J. · Vogt · S.
Objectives

This study evaluates how participants experienced and assessed a three-round Delphi study on the terminology of developmental language disorders in childhood. It compares participants who completed all rounds (completers) with those who withdrew early (dropouts) and aims to derive methodological quality criteria for future Delphi studies.

Design

The evaluation is based on a Delphi study conducted in 2021/2022 across five German-speaking countries. After the final round, n=179 experts (40% response rate) completed a standardised survey assessing their expertise, motivation, reasons for discontinuation, time commitment and perceptions of questionnaire and feedback design. Responses from completers (n=156) and dropouts (n=23) were analysed descriptively.

Results

Most participants had no prior experience with Delphi methods but rated the study positively and considered the topic highly relevant. Completers reported their subjective time commitment to be lower and rated the handling of the questionnaire more positively than dropouts. Feedback was used by nearly half of all experts and was more actively considered by completers. Lack of time was the most common reason for discontinuation.

Conclusion

The findings confirm the feasibility and acceptance of the Delphi method in interdisciplinary health research. In addition to established methodological principles, topic relevance, clear communication and time commitment emerged as key areas for expert motivation and engagement.

Investigation on the knowledge-attitude-practice of medical students in controlling emerging infectious diseases: A case study of COVID-19

by Yizhe Yang, Ruifeng Liang, Yan Luo, Doudou Zhu, Yi Liu, Yuyan Guo, Jiafen Zhang, Qiao Niu

Objective

Investigate the Knowledge-Attitude-Practice (KAP) of students from Medical College towards emerging infectious diseases, and assess their impact, can provide a scientific basis and practical guidance for enhancing medico’s prevention and control capabilities.

Methods

A total of 2,395 participants from various grades and majors at Medical University were randomly selected using a stratified cluster sampling method. This cross-sectional study was conducted between April 25 and May 31, 2020, using a self-administered questionnaire developed on the Wenjuanxing platform to assess COVID-19-related knowledge, attitudes, and practices (KAP) among medical students.

Results

A total of 2,245 participants (aged 16–28 years) were included in the study, coming from five medical disciplines: Clinical Medicine, Preventive Medicine, Nursing, Clinical Pharmacy, Health Inspection and Quarantine. The average scores for the COVID-19 epidemiological knowledge and the control measures for the epidemic were 4.92 ± 1.03 and 4.50 ± 0.78, respectively. Among them, the scores of epidemiological knowledge exhibited significant differences in sex, nation, type of dwelling place, major, grade, annual per capita household income, and age. The scores of preventive knowledge significantly differed by sex, major, grade, physical condition, and age. Further, behavioral data indicated that 96.0% of the students thought the pandemic had severely affected their daily life, while >90% maintained consistent mask usage and >80% insisted on health-protective practices. Practice scores finally varied significantly by sex, family structure, and ethnicity.

Conclusions

Altogether, medical students possess certain basic knowledge in controlling emerging infectious diseases, but some still generally suffer from insufficient cognitive depth and anxiety. Colleges can systematically enhance students’ rational cognitive level which include offering specialized courses as well as promoting cutting-edge research achievements, and through standardized operations stabilize their psychological states.

Impact of a tropical monsoon climate on formaldehyde exposure and microbial contamination in anatomy dissection hall

by Areeya Madsusan, Saowaluk Krainara, Wantanasak Suksong, Kittithat Sudchoo, Nadeyah Tohmoh, Pattharaporn Jonggrijug, Chomkaeo Maipunklang, Chanitsara Chadaram, Kholeeyoh Samaeng, Piyadhida Kurdthongmee, Uratit Noosab, Arun Nakapong, Yanawut Udomsri, Suttiporn Kanaso, Natee Sakorn, Ng Yee Guan, Sukrit Sangkhano

Gross anatomy dissection is an essential component of medical and health science education, yet it presents notable occupational hazards, particularly from formaldehyde (FA) exposure and microbial contamination. These risks may be intensified in anatomy dissection halls located in tropical monsoon (Am) climates, where elevated humidity and temperature promote both chemical volatility and microbial persistence. This study assessed the combined effects of such climatic conditions on FA concentrations and microbial ecology within a naturally ventilated dissection hall in southern Thailand. FA levels were measured through personal and area air sampling across seven anatomical regions, while microbial contamination on cadaver-contact surfaces was evaluated using culture-based methods and high-throughput sequencing. Functional prediction of microbial communities was performed using PICRUSt2 to assess their metabolic adaptation to environmental stressors. The results revealed that both personal and indoor FA concentrations (mean 1.17 ± 0.39 ppm and 1.09 ± 0.45 ppm, respectively) exceeded several international occupational exposure limits, with the highest levels observed during dissections involving deep or adipose-rich anatomical regions. Microbial analyses identified stress-tolerant and potentially pathogenic genera, including Bdellovibrio, Aequorivita, and Aspergillus spp., along with enriched pathways involved in aromatic compound degradation and environmental resilience. These findings highlight the limitations of natural ventilation in controlling occupational exposures and microbial contamination in Am climate anatomy laboratories. The study supports the implementation of climate-responsive engineering controls and laboratory management strategies that address chemical safety, thermal regulation, and biosafety to promote healthier and more sustainable dissection environments in similar high-risk settings.

Factors and Strategies Influencing Integrated Self‐Management Support for People With Chronic Diseases and Common Mental Disorders: A Qualitative Study of Canadian Primary Care Nurses' Experience

ABSTRACT

Aim

To describe the factors influencing clinical integration of self-management support by primary care nurses for people with physical chronic diseases and common mental disorders, as well as strategies for improvement.

Design

Thorne's interpretive descriptive qualitative approach.

Methods

Semi-structured interviews lasting from 60 to 90 min were carried out virtually with nurses from Family Medicine Groups and University Family Medicine Groups across the province of Quebec (Canada) from January 2022 to January 2023. Twenty-three primary care nurses were recruited through purposive and snowball sampling from three networks. Iterative deductive and inductive thematic analysis was completed using Valentijn's Rainbow Model of Integrated Care.

Results

The study identified several factors influencing integrated self-management support from primary care nurses across integration domains: clinical (knowledge, skills, training and experience; workload; approaches and activities; attitudes and behaviours; clinical tools), professional (interprofessional and nursing roles; collaboration; team composition), normative and functional (culture and organisational mechanisms). Improvement strategies pointed to the necessity of developing training regarding common mental disorders, adapted clinical tools, clinical support and coaching through collaboration and culture change.

Conclusion

These findings suggest that a cultural shift emphasising continuous improvement through targeted training and coaching is essential to enhance integrated self-management support. Identifying factors and improvement strategies will help implement future interventions and tailor current practices.

Implications for the Profession and/or Patient Care

Identifying barriers and facilitators, along with proposing improvement strategies, will enable the implementation of more effective interventions and the adaptation of care practices to better support self-management. Additionally, it will influence stakeholders to modify the context surrounding integrated self-management support and interprofessional practise.

Reporting Method

Consolidated criteria for reporting qualitative research (COREQ).

Patient and Public Contribution

No patient or public contribution.

Field evaluation of ethnomedicinal plants’ smoke knockdown and repellent efficacy against pre-bedtime biting malaria vectors in Mazowe district, Zimbabwe

by David Singleton Nyasvisvo, Shadreck Sande, Rudo Sithole, Tamuka Nhiwatiwa

The study investigated the knockdown and repellent efficacy of smoke from native plants, Vitex payos (Lour.) Merr., Peltophorum africanum Sond., and Adansonia digitata L., against malaria vectors in Bare ward, Mazowe district, Zimbabwe. Three to five-day-old An. gambiae sensu lato (s.l.) were exposed to smoke from the three plants over 150 minutes during knockdown tests. Mortality was scored after 24 hours. A randomized 4 x 4 Latin square design was used to assign plant smoke and control treatments to huts and nights during repellency tests. Repellency was estimated as percentage reduction in biting using CDC light traps between 1800 and 2200 hours. Burning charcoal without plant material was used as control. SPSS software was used for data analysis. KdT50 and kdT90 rates were determined using probit analysis. A negative binomial GLM with a log link function and an emmeans post-hoc test was used to model the number of An. funestus s.l. caught based on smoke treatment, night and hut. Vitex payos and P. africanum knocked down 100% of the An. gambiae s.l. within the 150-minute exposure period. The kdT50 and kdT90 rates were more rapid for V. payos (37.8 and 69.7 min) and P. africanum (44.8 and 89.7 min) than for A. digitata (77.8 and 146.9 min). The percent 24-hr mortality was 91.7 (V. payos), 80 (P. africanum) and 71.6 (A. digitata). Smoke from V. payos (86%, p = 0.008) and P. africanum (73%, p = 0.028) significantly reduced An. funestus s.l. biting. Smoke from V. payos and P. africanum merits further investigation since it has the potential to provide an additive benefit to ITNs by targeting proportions of malaria vectors that bite before bedtime. Studies to determine whether the use of smoke from these plants has a community effect that can lead to the reduction of malaria burden are required and significant.

Evaluation of the efficacy of PREVENIR (PREVention ENvIronment Reproduction) platforms on urinary markers of chemical exposure in pregnant women: protocol for an unblinded randomised clinical trial (PREVENIR-G)

Por: Delva · F. · Sentilhes · L. · Francis-Oliviero · F. · Bessonneau · V. · Sunyach · C. · Audouin · C. · Paris · C. · Haddad · B. · Matrat · M. · Pairon · J.-C. · Belacel · M. · Sitta · R. · Roberts · T. · Bretelle · F. · Garlantezec · R.
Introduction

It has been reported that pregnant women used more cosmetics daily than non-pregnant women. Phenoxyacetic acid is the main metabolite of phenoxyethanol, the most frequent preservative in cosmetics used in Europe, previously associated with reproductive effects (longer time to conception, endocrine disruptors in newborns and poorer verbal comprehension in children). In France, specialised platforms (PREVention ENvIronment Reproduction (PREVENIR)) in university hospital maternity wards are dedicated to evaluating environmental and occupational exposures in patients with pregnancy-related pathologies and supporting targeted prevention efforts. These platforms are composed of occupational health physicians, obstetrician-gynaecologists, midwives, occupational health nurses, and occupational health and environmental engineers. To assess the efficacy of these platforms, we developed a randomised clinical trial, the protocol for which is presented in this paper. The primary objective of the PREVENIR-G Study is to compare the change in urinary phenoxyacetic acid concentrations from baseline to 3 months postintervention between an intervention group and a control group. To date, the intervention has been integrated into routine care in certain facilities; however, its efficacy remains unproven. It is therefore essential to assess the relevance of this intervention, considering both its potential benefits and any adverse effects, such as increased stress or anxiety.

Methods and analysis

This study is an unblinded, randomised clinical superiority trial with two parallel groups (intervention vs no intervention) in four university maternity hospitals in France. We will include 300 pregnant women (aged 18 years or older) who are under 24 weeks of gestation (150 per group) referred to the participating PREVENIR platforms for management. The intervention will consist of clinical prevention management through the PREVENIR platforms, involving a consultation with an environmental health expert for an assessment of environmental and occupational exposures. During the consultation, targeted prevention messages will be provided based on identified exposures. The no intervention comparator will be a waiting-list control group. At the inclusion visit, patients will receive urine collection vials for samples to be collected at baseline and again at 3 months. Urine samples will be collected twice in a single day, on three separate days, during the collection week at home. In the week following the urine collection period, only participants in the intervention group will engage with the PREVENIR platforms. The primary outcome will be the difference in the urinary phenoxyacetic acid concentration between baseline and 3 months postintervention, compared between the intervention and control groups.

Ethics and dissemination

The study has been approved by the hospital ethics committee (CCP Ouest 2, no. 2023-A00941-44). All participants will provide written informed consent. Results will be shared through presentations and publications.

Trial registration number

NCT06642818

Clusters of adolescent pregnancies and neonatal deaths in Sao Paulo state, Brazil: a population-based spatial analysis with a socioeconomic approach

Objective

Adolescent pregnancy is a global issue. Early childbearing is strongly linked to poverty and negative health outcomes, including increased neonatal death risk. This study explores spatial patterns of adolescent pregnancies and neonatal deaths and their association with socioeconomic characteristics.

Design

This population-based study used spatial analysis techniques to investigate the geographical distribution of adolescent pregnancies, socioeconomic characteristics and neonatal mortality rate (NMR).

Setting

The 645 municipalities of State of Sao Paulo, Brazil.

Participants

All live births to mothers residing in the State of Sao Paulo, Brazil, between 2004 and 2020.

Primary and secondary outcome measures

The socioeconomic indicators used were: municipal human development index and per capita income (PCI). Spatial patterns were assessed for spatial autocorrelation (Moran’s I, LISA), and smoothed using local Bayesian estimation. Spearman’s correlation was used to ascertain the relationship between the percentage of live births to adolescent mothers and socioeconomic indexes. This calculation was also undertaken between different maternal age groups of NMR.

Results

The study analysed over 10 million live births, with 14.3% attributed to adolescent mothers. Spatial analysis revealed significant clustering of adolescent pregnancies, strongly associated with lower socioeconomic indicators. NMR also exhibited spatial clustering, particularly after smoothing. Statistically significant differences were observed in PCI medians between high–high and low–low clusters for adolescent births. High and low incidence areas of NMR, both in all maternal ages and stratified by adolescent and non-adolescent mothers, demonstrated considerable overlap.

Conclusion

The results indicated the existence of clustering areas of adolescent pregnancy and neonatal deaths and suggested that the prevalence of births to adolescent mothers is not distributed equally and is higher in lower socioeconomic developed areas.

Emergency clinicians' use of adult and paediatric sepsis pathways: An implementation redesign using the behaviour change wheel

Abstract

Aims

To identify facilitators and barriers and tailor implementation strategies to optimize emergency clinician's use of adult and paediatric sepsis pathways.

Design

A qualitative descriptive study using focus group methodology.

Methods

Twenty-two emergency nurses and ten emergency medical officers from four Australian EDs participated in eight virtual focus groups. Participants were asked about their experiences using the New South Wales Clinical Excellence Commission adult and paediatric sepsis pathways using a semi-structured interview template. Facilitators and barriers to use of the sepsis pathways were categorized using the Theoretical Domains Framework. Tailored interventions were selected to address facilitators and barriers, and a re-implementation plan was devised guided by the Behaviour Change Wheel.

Results

Thirty-two facilitators and 58 barriers were identified corresponding to 11 Theoretical Domains Framework domains. Tailored strategies were selected to optimize emergency clinicians' use of the sepsis pathways including refinement of existing education and training programmes, modifications to the electronic medical record system, introduction of an audit and feedback system, staffing strategies and additional resources.

Conclusion

The implementation of sepsis pathways in the Emergency Department setting is complex, impacted by a multitude of factors requiring tailored strategies to address facilitators and barriers and optimize uptake.

Implications for Patient Care

This study presents a theory-informed systematic approach to successfully implement and embed adult and paediatric sepsis pathways into clinical practice in the Emergency Department.

Impact

Optimizing uptake of sepsis pathways has the potential to improve sepsis recognition and management, subsequently improving the outcome of patients with sepsis.

Reporting Method

The Consolidated Criteria for REporting Qualitative research guided the preparation of this report.

Patient or Public Contribution

Nil.

Understanding Canadian experiences of suicidality during the COVID-19 pandemic: protocol of a pan-Canadian qualitative study

Por: Baharikhoob · P. · Hollenberg · E. · Cuperfain · A. B. · Rudoler · D. · Nicoll · G. · Blumberger · D. · Bolton · J. · Chartier · G. B. · Crawford · A. · Furqan · Z. · Gajaria · A. · Gratzer · D. · Hatcher · S. · Husain · M. I. · Kurdyak · P. · Lam · J. S. H. · Lavergne · M. R. · Marshall
Introduction

The COVID-19 pandemic led to major disruptions in society across many spheres, including healthcare, the economy and social behaviours. While early predictions warned of an increased risk of suicide during and after the COVID-19 pandemic, rates of suicide deaths remained stable or decreased over that period for most countries. In contrast, the prevalence of suicidal ideation doubled and suicide attempts slightly increased during the COVID-19 pandemic in the adult general population worldwide, accompanied by a higher prevalence of major depressive disorder and anxiety disorders. While these data can tell us what happened, they cannot tell us why. Qualitative suicide research seeks to understand experiences of individuals with suicide-related thoughts and behaviours, provides an in-depth exploration of their lives and interactions with others and centres their views and unique context. There is little qualitative research focusing on suicidality during the pandemic. This study will use a qualitative approach to explore the extent and impact of the COVID-19 pandemic on Canadians who experienced suicidality and review their experiences of accessing mental healthcare to identify key components in supporting safety and recovery.

Methods and analysis

This study will involve approximately 100 semistructured interviews with participants across four Canadian provinces and will explore experiences with suicide-related thoughts and behaviours during the COVID-19 pandemic. Transcripts will be analysed through qualitative analysis informed by constructivist grounded theory.

Ethics and dissemination

The study was approved by the Research Ethics Board of the Centre for Addiction and Mental Health, Toronto Academic Health Sciences Network (for JZ: CAMH REB No 104-2022). In addition to traditional peer-reviewed presentations and publications, a report will make study findings accessible to policy makers, media and the public.

I CAN DO Surgical ACP (Improving Completion, Accuracy and Dissemination of Surgical Advanced Care Planning): a protocol for a multisite, single-blinded, pragmatic randomised controlled trial to improve ACP completion in older adults in the presurgical set

Por: Welton · L. · Colley · A. · Sudore · R. L. · Melton · G. B. · Botsford · C. · Oreper · S. · O'Brien · S. E. · Koopmeiners · J. S. · Gibbs · L. · Carmichael · J. C. · Wick · E. C.
Introduction

Approximately, 20 million older adults undergo major elective surgery annually, yet less than 10% engage in advance care planning (ACP). This is a critical missed opportunity to optimally engage in patient-aligned medical decisions and communications in the perioperative setting. The PREPARE ACP programme (easy-to-read advance directives (ADs) and a patient-directed, online ACP programme) has been shown to increase ACP documentation and patient and clinician empowerment to discuss ACP. Yet, a gap remains in extending PREPARE’s use to surgical populations. We hypothesise that by delivering PREPARE in a patient-facing electronic health record (EHR) centric presurgery workflow for older adults, supported by automated patient reminders and outreach from a healthcare navigator (HCN), we can enable patients and/or surgical teams to engage in ACP discussions.

Methods and analysis

This is a three-site, single-blinded, pragmatic randomised trial comparing increasing intensity of ACP-focused, patient-facing EHR messaging and HCN support. The outreach occurs prior to a new presurgical clinic visit. We will enrol 6000 patients (2000 each site) aged 65 and older and randomise them equally to the following study arms: (Arm 1) ACP-related cover letter and PREPARE URL information sent via patient portal and postal mail (includes cover letter, AD and PREPARE pamphlet); (Arm 2) Arm 1 plus reminder message via text or MyChart message and (Arm 3) Arm 2 plus HCN outreach and support. The primary outcome is clinically meaningful ACP documentation in the EHR (ie, surrogate designation, documented discussions and ADs) within 6 months of the new surgical visit. The rate of ACP documentation will be compared between treatment groups using generalised estimating equations. Secondary outcomes include a validated four-item ACP engagement survey, administered 2 weeks after the presurgical visit and 6 months later. All analyses will follow the intention-to-treat principle and recent Consolidated Standards of Reporting Trials guidelines.

Ethics and dissemination

The study will be conducted according to the Declaration of Helsinki, Protection of Human Volunteers (21 Code of Federal Regulations (CFR) 50), Institutional Review Boards (21 CFR 56) and Obligations of Clinical Investigators (21 CFR 312). The protocol and consent form were reviewed and approved by Advarra, an National Insitutes of Health (NIH)-approved, commercial, centralised Institutional Review Board (IRB). The IRB/Independent Ethics Committee of each participating centre reviewed and approved the protocol and consent and obtained reliance agreements with Advarra prior to study initiation. The study is guided by input from patient and clinical advisory boards and a data safety monitoring board. The results of the study will be disseminated to both academic and community stakeholders, complying with all applicable privacy laws.

Trial registration number

ClinicalTrials.gov ID: NCT06090552.

Protocol number

Advarra Pro 00070994.

University of California, San Francisco IRB iRIS number

23-38948.

Protocol Date: 24 October 2024. Protocol Version: 4.

Scoping review of interventions aimed at promoting healthy screen use among adolescents

Por: Tock · W. L. · Gauvin · L. · Hudon · F. · Tremblay · F. · Belanger · R. E. · Turcotte-Tremblay · A.-M.
Objectives

The objective of this scoping review is to map and synthesise existing literature on interventions aimed at promoting healthy screen use among adolescents. This review identifies the types, functions and settings of interventions, explores the diversity of targeted outcomes and highlights equity considerations and research gaps.

Design

We conducted a scoping review in accordance with the Arksey and O’Malley framework and reported following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews guidelines.

Data sources

We systematically searched Medline, PsycINFO and ERIC from January 2013 to June 2024. Reference lists of included studies were also manually screened.

Eligibility criteria

We included peer-reviewed experimental, quasi-experimental, observational and qualitative studies reporting on interventions designed to promote healthy screen use among adolescents aged 10–19 years.

Data extraction and synthesis

One author extracted data using a structured charting form, and a second author verified all entries. Results were synthesised descriptively across key themes including target populations, theoretical frameworks, intervention components and reported outcomes.

Results

From 6433 records, we identified 93 articles on 81 interventions, mainly conducted in high school settings in the USA and Australia. Most examined short-term interventions targeting recreational screen time. Outcomes included media literacy, cyberbullying, internet and gaming addiction, safe internet use, social media use and mental and sexual health. Seventy-eight per cent of interventions attempted to educate adolescents, while 34% offered training activities (eg, educational sessions to elevate risk awareness and skill-based training to enhance digital literacy and self-regulation). Interventions targeting external influences were used less frequently. About 20% of studies showed no statistically significant findings, highlighting the need to promote evidence-based interventions.

Conclusion

This review identifies a need for broader, multilevel strategies that account for contextual factors and social determinants in influencing screen use and its related health issues. Future research should explore long-term effectiveness while examining the potential moderating and mediating effects of social determinants. Equity considerations were not a primary focus of most interventions, underscoring an important gap in this literature. Future interventions could incorporate equity-focused design and evaluation to ensure they respond to the needs of diverse adolescent populations.

Retinal detachment in Nigerians: a multicentre cross-sectional study on demographics, risk factors for blindness and surgical outcomes in a developing country

Por: Okonkwo · O. N. · Adenuga · O. O. · Nkanga · D. · Oyekunle · I. · Ovienria · W. · Agweye · C. T. · Akanbi · T. · Ibanga · A. A. · Udoh · M.-M. · Collaborative Retina Research Network Report 5
Objective

To compare the presenting demographic and clinical characteristics of rhegmatogenous retinal detachment (RRD) with other RD types, investigate risk factors of blinding RD and the outcome of surgical intervention.

Design

Prospective, cross-sectional and multicentre.

Setting

Four ophthalmic centres in three geographic locations of Nigeria.

Participants

264 eyes from 237 patients diagnosed with RRD, tractional retinal detachment (TRD) and exudative retinal detachment (ERD) seen between April 2019 and March 2020.

Results

264 eyes of 237 patients were diagnosed out of 35 641 patients screened. RRD was the most common RD (n=167 (70.5%), TRD 61 (25.7%) and ERD 9 (3.8%) patients). The hospital-based prevalence of all RD is 6.6 per 1000 patients (0.66%), and for RRD alone, 4.7 per 1000 patients (0.47%). The most common symptom was a sudden decline in vision, 100 patients (42.2%); floaters and flashes were uncommon, 5 (2.1%). RRD presented earliest, with a median symptom duration of 2 months, and TRD and ERD at 7.5 months each.

The 46–65-year age group had the highest representation, RRD (n=70, 41.9%), TRD (n=41, 67.3%), ERD (n=4, 44.4%). The mean age was highest in TRD (52.3±12.7 years) and lowest in RRD (44.0±17.5 years) and ERD (45.2±20.4 years). Males dominated (RRD 70.1%, TRD 62.3%, and ERD 66.7%). Ocular trauma was highest in RRD 29.3%, TRD 7.5% and ERD 10%; fellow eye RD was highest in TRD 47.5%, ERD 20%, RRD 8% and myopia was highest in RRD 27.6%.

Two-thirds of eyes were blind (Snellen best-corrected visual acuity

Shorter symptom duration is associated with better preoperative and postoperative vision. In contrast, longer durations are connected to poorer outcomes. Eyes with symptoms lasting less than a week had a 17% rate of postoperative blindness, compared with 30% in cases lasting 1–3 months, and 51% in cases exceeding 6 months.

Conclusions

Delays in diagnosing and treating RD result in high rates of preoperative blindness, which can be reversed with surgery even after several weeks of symptoms. Understanding the associations between RD and the risk of blinding RD in developing countries will benefit early diagnosis, treatment and improve treatment outcomes.

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