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Evaluation of the uncertainty in calculating nanodosimetric quantities due to the use of different interaction cross sections in Monte Carlo track structure codes

by Carmen Villagrasa, Giorgio Baiocco, Zine-El-Abidine Chaoui, Michael Dingfelder, Sébastien Incerti, Pavel Kundrát, Ioanna Kyriakou, Yusuke Matsuya, Takeshi Kai, Alessio Parisi, Yann Perrot, Marcin Pietrzak, Jan Schuemann, Hans Rabus

Biological effects induced by diverse types of ionizing radiation are known to show important variations. Nanodosimetry is suitable for studying the link between these variations and the patterns of radiation interactions within nanometer-scale volumes, using experimental techniques complemented by Monte Carlo track structure (MCTS) simulations. However, predicted nanodosimetric quantities differ among MCTS codes, primarily because each code employs distinct molecular-scale particle interaction models. This multi-code study examines these variations for low-energy electrons (20–10,000 eV), which play a critical role in energy deposition and biological effects by virtually all types of ionizing radiation. Specifically, the hypothesis tested in this work is that inter-code variability in nanodosimetry results is mainly caused by differences in assumptions regarding total interaction cross sections. Ionization cluster size distributions and derived nanodosimetric parameters were simulated with seven MCTS codes (PARTRAC, PHITS-TS, MCwater, PTra, and three Geant4-DNA options) in liquid water as a surrogate for biological tissue. Significant inter-code differences were observed, especially at the lowest energies. They were substantially reduced upon replacing the original cross sections in each code with a common, averaged dataset, created ad-hoc for this study and not based on theoretical assumptions. For example, for 50 eV electrons in 8 nm spheres, the variability in the predicted mean ionization numbers decreased from 23% to 5%, and in the probability of inducing two or more ionizations from 34% to 7% (relative standard deviations). This quantification demonstrates that total interaction cross sections are the primary source of uncertainty at low electron energies. A sensitivity test using DNA damage simulations with the PARTRAC code revealed that cross section variations notably affect biological outcome predictions. Replacing the code’s original cross sections with the averaged ones increased the predicted double-strand break yield by up to 15%. These findings underscore the urgent need for improved characterization of low-energy electron interaction cross sections to reduce uncertainties in MCTS simulations and enhance mechanistic understanding of radiation-induced biological effects.

Impact of international observerships on Ukrainian healthcare professionals during the war: a cross-sectional survey study

Por: Kovalchuk · N. · Zinchuk · A. · Beznosenko · A. · Semikov · R. · Poylin · V. · Vash-Margita · A. · Mims · M. · Davis · D. · Uboha · N. · Suchowerska · N. · Iakovenko · V. · Hart · J. · Poznansky · M. · Kacharian · A. · Kizub · D. · Melnitchouk · S. · Melnitchouk · N.
Background

This cross-sectional survey study evaluates the influence of international observerships organised by the coalition of healthcare professionals from academic institutions—the Ukrainian Alliance for Medical Exchange and Development (UA-MED)—on the professional development, knowledge transfer and clinical practice improvement of Ukrainian healthcare professionals during the war.

Methods

A total of 263 international observerships were facilitated for 204 Ukrainian medical professionals across the institutions in the USA, Canada, Europe and Australia during 2022–2024. To assess the impact of these observerships, a survey was administered focusing on overall satisfaction, procedural knowledge gained and challenges faced when implementing new techniques on return. The primary outcome was the success score, defined as a composite score of implementing new procedures, initiating quality improvement projects and knowledge dissemination efforts.

Results

A total of 128 medical professionals from 45 Ukrainian institutions who completed 138 observerships in 27 institutions abroad participated in the survey (response rate of 62.7%). Observers varied by profession: surgeons (32.8%), radiation oncologists (14.8%), medical oncologists (11.7%), anaesthesiologists (11.7%) and others. Observerships lasted a median of 4 weeks; 74.1% included conference attendance. The average success and satisfaction scores were 6.5/10 and 9.3/10, respectively.

The majority (92.7%) reported a shift in perception of how to practise medicine and 75.5% implemented new procedures on returning to Ukraine. Encouraged to disseminate knowledge, participants provided informal training to colleagues (67.3%), prepared presentations for their institutions (65.5%) and national conferences (32.7%), incorporated learnt materials into educational lectures (39.1%) and engaged in all the activities above (15.5%).

Conclusions

The international observerships played an important role in enhancing the reported skills and knowledge of Ukrainian healthcare professionals during the war. Improvements were reported in clinical practice, medical education and the implementation of new procedures. The success of these observerships underscores the potential for similar programmes in other low-income and middle-income countries/upper-middle-income countries.

Essential changes in the Doctor of Pharmacy (Pharm-D) curriculum in Pakistan: an exploratory qualitative study

Por: Mubarak · N. · Rahman Rana · F. · Kanwal · S. · Waqar · M. A. · Zin · C. S. · Elnaem · M. H. · Alqahtani · S. S. · Zahid Iqbal · M.
Objectives

The study aims to present recommendations for a revised Doctor of Pharmacy (Pharm-D) curriculum that aligns with regional needs and international standards of pharmacy education.

Design

An exploratory qualitative study involving individual semistructured interviews. Data were collected and reported in accordance with Consolidated Criteria for Reporting of Qualitative Studies.

Setting

Face-to-face interviews were conducted in the respective offices of the experts and online interviews were conducted on Zoom and Google Meet.

Participants

Purposive and snowball sampling was used to recruit experts due to the eligibility criteria of including associate professors with a PhD, and snowball sampling facilitated the recruitment of experts from all provinces and internationally. Interviews were transcribed verbatim and data were analysed using an inductive thematic approach using NVivo V.15. All interviews were conducted in English.

Results

The study engaged 49 experts from national and international settings with an age range of 25–60 years (median=43 years). The researchers came out with six themes and their subthemes from the data including: (a) understanding current Pharm-D curriculum in Pakistan, (b) inevitable changes required in the Pharm-D curriculum, (c) specific-subject based changes, (d) foundational steps to achieve the required changes, (e) barriers to the implementation of these changes and (f) impact of Pharm-D curriculum change.

Conclusion

The findings highlighted a clear need to revise the curriculum by incorporating enhanced clinical pharmacy content, integrated learning approaches, elective courses, interprofessional education, mandatory hospital and clinical placements, experiential learning through simulation-based methods and research components through a collaborative approach from policy makers and academic stakeholders.

Effectiveness of antihypertensive drugs for secondary prevention of ischaemic stroke: a nationwide historic cohort study

Por: Perrier · J. · Gabet · A. · Olie · V. · Pariente · A. · Tzourio · C. · Bezin · J.
Objectives

To evaluate the impact of various antihypertensive drugs on secondary stroke prevention in a real-life setting.

Design

Nationwide historic cohort study.

Setting

French healthcare system data (SNDS).

Participants

Adults hospitalised for ischaemic stroke between 2014 and 2015 were followed up until December 2021 and stratified based on the presence of atrial fibrillation (AF).

Outcome measures

Risk of stroke recurrence was assessed using a time-dependent Cox cause-specific model accounting for changes in drug exposure. We also investigated the risk of major adverse cardiovascular events (MACE) or all-cause death. Models were adjusted on stroke characteristics, coprescriptions and co-morbidities, at inclusion and across follow-up.

Results

Among 54 764 patients without AF (median age 71; 46% women) and 17 960 with AF (median age 79; 51% women), stroke recurrence occurred in 11% and 13%, respectively. In non-AF patients, reduced recurrence risk was associated only with use of calcium channel blockers (adjusted HR (aHR) 0.91, 95% CI 0.86 to 0.97), thiazide diuretics (aHR 0.90, 95% CI 0. 83 to 0.97), loop diuretics (aHR 0.86, 95% CI 0.77 to 0.95) and potassium-sparing agents (aHR 0.83, 95% CI 0.70 to 0.98). In AF patients, only potassium-sparing agents (aHR 0.82, 95% CI 0.69 to 0.99) were associated with reduced recurrence risk. All antihypertensive drugs, apart from loop diuretics, were associated with a reduced risk of MACE or all-cause death.

Conclusions

In this large cohort, only diuretics and calcium channel blockers were associated with a reduced risk of recurrent stroke. Most antihypertensive drugs, however, may be more effective in overall cardiovascular prevention.

Spatiotemporal patterns of asthma in Bhutan: a Bayesian analysis

Por: Tsheten · T. · Chateau · D. · Walsh · E. · Sargent · G. · Clements · A. C. A. · Gray · D. · Kelly · M. · Dorji · N. · Tenzin · P. · Adhikari · L. · Penjor · K. · Bagheri · N. · Wangdi · K.
Introduction

Asthma is a chronic respiratory disorder requiring ongoing medical management. This ecological study investigated the spatial and temporal patterns of notification rates for asthma from clinic visits and hospital discharges and identified demographic, meteorological and environmental factors that drive asthma in Bhutan.

Methods

Monthly numbers of asthma notifications from 2016 to 2022 were obtained from the Bhutan Ministry of Health. Climatic variables (rainfall, relative humidity, minimum and maximum temperature) were obtained from the National Centre for Hydrology and Meteorology, Bhutan. The Normalised Difference Vegetation Index (NDVI) and surface particulate matter (PM2.5) were extracted from open sources. A multivariable zero-inflated Poisson regression (ZIP) model was developed in a Bayesian framework to quantify the relationship between risk of asthma and sociodemographic and environmental correlates, while also identifying the underlying spatial structure of the data.

Results

There were 12 696 asthma notifications, with an annual average prevalence of 244/100 000 population between 2016 and 2022. In ZIP analysis, asthma notifications were 3.4 times (relative risk (RR)=3.39; 95% credible interval (CrI) 3.047 to 3.773) more likely in individuals aged >14 years than those aged ≤14 years, and 43% (RR=1.43; 95% CrI 36.5% to 49.2%) more likely for females than males. Asthma notification increased by 0.8% (RR=1.008, 95% CrI 0.2% to 1.5%) for every 10 cm increase in rainfall, and 1.7% (RR=1.017; 95% CrI 1.2% to 2.3%) for a 1°C increase in maximum temperature. An increase in one unit of NDVI and 10 µg/m3 PM2.5 was associated with 27.3% (RR=1.273; 95% CrI 8.7% to 49.2%), and 2.0% (RR=1.02; 95% CrI 1.0% to 4.0%) increase in asthma notification, respectively. The high-risk spatial clusters were identified in the south and southeastern regions of Bhutan, after accounting for covariates.

Conclusion

Environmental risk factors and spatial clusters of asthma notifications were identified. Identification of spatial clusters and environmental risk factors can help develop targeted interventions that maximise impact of limited public health resources for controlling asthma in Bhutan.

Are hypertensive women with type 2 diabetes treated with RAS inhibitors as often as men? A cross-sectional study in France

Por: Paquet · S. · Delpech · R. · Sassenou · J. · Kab · S. · Zins · M. · Ringa · V. · Rigal · L.
Objectives

We hypothesise that women with type 2 diabetes and hypertension are less likely than comparable men to receive renin–angiotensin system (RAS)-inhibiting antihypertensive treatment, particularly as first-line therapy. This study’s main aim is to investigate the delivery of RAS inhibitor treatments by sex and number of antihypertensive treatments used.

Design

Cross-sectional study in a cohort.

Setting

Constances cohort, France, 2012–2019.

Participants

2541 participants with type 2 diabetes among the 196 477 individuals aged 18–69 included in the Constances cohort.

Outcome measures

Proportion of individuals treated with RAS inhibitors by sex and number of antihypertensive treatments dispensed. Factors associated with the use of RAS inhibitors.

Results

Among 2541 diabetics, 1742 (68.6%) had received at least one antihypertensive treatment during the year preceding inclusion—a percentage that did not differ significantly between men and women (p=0.07). In analyses stratified by the number of antihypertensive classes, RAS inhibitors were delivered significantly less often to women than men for single-drug therapy (OR 0.46, 95% CI 0.25 to 0.81; p=0.008) and two-drug therapy (0.35, 95% CI 0.16 to 0.75, p=0.007) but not in regimens of three or more drugs (0.29, 95% CI 0.05 to 1.56; p=0.15). In the multivariate analysis, women received RAS inhibitors significantly less often than men (0.41, 95% CI 0.27 to 0.62; p

Conclusions

Women with type 2 diabetes are less likely than men to receive a prescription for RAS inhibitors, although this drug class is recommended as first-line therapy in this population.

Interventions to enhance medication therapy safety in older patients with cognitive impairment--protocol of a systematic review with public involvement

Por: Jungreithmayr · V. · Terstegen · T. · Eidam · A. · Rastätter · S. · Benzinger · P. · Seidling · H. M.
Introduction

Cognitive impairment is considered a challenge in medication management for both the affected patient as well as their caregiver. Numerous studies have investigated interventions aiming to improve medication therapy safety in this population; however, there is insufficient knowledge on interventions which support patients and caregivers effectively. The aim of this systematic review is to (1) identify interventions to improve medication therapy safety in older patients with cognitive impairment, and (2) to evaluate their effectiveness.

Methods and analysis

We will conduct a systematic review of literature with participatory elements of public involvement in every step of the process. Five literature databases (PubMed, CENTRAL, Embase, PsycINFO and CINAHL) will be screened to identify interventions to improve medication therapy safety in older (≥65 years of age) adults with cognitive impairment. To support methodology and evidence synthesis, we will conduct expert panel discussions as well as focus group discussions of caregivers and healthcare professionals. Study selection, data extraction and bias assessment will be conducted independently by two reviewers. For data synthesis, studies will be organised by setting (eg, community setting, hospital setting, nursing home setting).

Ethics and dissemination

The responsible Ethics Committee of the Medical Faculty of Heidelberg granted approval for the public involvement strategies in this project (S-562/2024). Results will be presented by publication in an academic journal and at scientific conferences.

PROSPERO registration number

CRD42024623352.

Knowledge, attitudes, and barriers to HIV testing among youth in Kumba, Cameroon: A cross-sectional qualitative community-based focus group study

by Frederick Nchang Cho, Marie Clarie Fien Ndim, Diane Zinkeng Tongwa, Christabel Afor Tatah, Franklin Ngwesse Ngome, Eugine Mbuh Nyanjoh, Andrew N Tassang

Background

Human Immunodeficiency Virus (HIV) remains a major public health concern in sub-Saharan Africa. In Cameroon, young people are disproportionately affected but underrepresented in HIV testing statistics.

Objective

To explore knowledge, attitudes, and behaviours related to HIV testing among youth in Kumba, Cameroon, and to identify barriers to inform community-based interventions.

Methods

A cross-sectional qualitative study was conducted using nine focus group discussions (FGDs) with 75 youth (52 females and 23 males) aged 18 - 35 years across four quarters in the Kumba II municipality. Participants were purposively sampled to reflect diverse educational and occupational backgrounds. Data were thematically analysed using Braun and Clarke’s framework with NVivo Version 14.

Results

Participants demonstrated high awareness of HIV testing services (90.7%) and transmission via sexual contact (96.0%), though knowledge gaps remained regarding non-sexual transmission and testing procedures. While 93.3% had previously undergone HIV testing, 57.3% reported stigma and 46.7% raised confidentiality concerns as ongoing barriers. Female participants feared being labelled as promiscuous, while males cited social norms that discourage help-seeking. Most participants supported school-based or youth-centred community testing, emphasising the need for privacy and youth-friendly environments. Key motivators for testing included the desire to know one’s status (82.7%), symptom appearance (28.0%), and unprotected sex (17.3%).

Conclusions

Despite strong awareness and high testing uptake, stigma and confidentiality concerns persist among youth in Kumba. To enhance HIV testing rates, community-based strategies should prioritise mobile clinics, peer outreach, and confidential youth-centred services. Strengthening education about HIV transmission and demystifying the testing process may further reduce barriers.

Food pricing: A study on the sales of food in Brazilian private schools

by Ariene Silva do Carmo, Paulo César Pereira de Castro Júnior, Thais Cristina Marquezine Caldeira, Daniela Silva Canella, Rafael Moreira Claro, Luiza Delazari Borges, Larissa Loures Mendes

The present study analyzed the prices of food sold in canteens of Brazilian private schools and described price-based marketing strategies, according to the NOVA food classification system. This is a mixed methods study combining a cross-sectional component and time series analysis, with data from 2,241 canteens in private elementary and secondary schools in the 26 capitals of Brazil and the Federal District, collected between June 2022 and June 2024. Price data collected for unprocessed, minimally processed, or processed foods and culinary preparations based on these foods (UMPCP), and ultra-processed foods and culinary preparations based on these foods (UpCP) sold in school canteens and from the National System of Consumer Price Indices (SNIPC), were used to create a data set containing deflated monthly prices for food and beverages sold between August 2022 and July 2024. Calculations were made for adjusted prices (R$/100 g or ml) and absolute prices (R$ per portion), and frequency of use of strategies such as combos and promotions. UMPCP showed lower adjusted price, but higher absolute price than UpCP, especially for solid foods. About 27% of the study canteens implemented pricing strategies for both food groups. Most of these strategies did not exclusively favor healthy foods, indicating that promotions and combos were used without distinction. The affordability of healthy foods is disadvantaged in school canteens when considering the price per portion, which may negatively influence students’ food choices. The findings show that current prices for food sold in most canteens discourage the purchase of healthy items, but favor the purchase of unhealthy ones. These results reinforce the importance of interventions for promoting healthy foods and making them more affordable.

Attitudes, awareness and experience of Italian women undergoing non-invasive prenatal testing (NIPT): a nationwide cross-sectional study

Por: Godino · L. · Nardi · E. · Lanzoni · G. · Pompilii · E. · Calabrese · S. · Bertonazzi · B. · Carrara · M. · Gazineo · D. · Turchetti · D.
Objectives

Despite the increasing availability of non-invasive prenatal testing (NIPT), women’s experiences and motivations remain largely unknown. The use of NIPT is increasing in Italy; however, its organisation and access paths vary considerably. Women may undergo testing in either public or private facilities, where differences in pretest information, testing procedures and result communication may influence their experience. This study aims to investigate the attitudes, awareness and experiences of Italian women undergoing NIPT.

Design

A cross-sectional anonymous online survey was conducted via social media in the period March–August 2023.

Setting

This nationwide study was conducted in Italy.

Participants

Women over 18 years old who had undergone NIPT were included.

Results

Responders were 4154 women from every part of Italy. Most participants perceived the information provided during pre-NIPT counselling as extremely/very clear (68.2%) and helpful (72.5%), with higher proportions observed when counselling was delivered by geneticists. The mean knowledge score was 12.3 (range: 0–15) and was statistically higher for women with higher education level and prior NIPT experience. Half of the women reported no change in their perceived risk of having a child with chromosomal abnormalities after pre-NIPT counselling, and risk perception reduction was associated with lower knowledge scores. Pretest negative emotions were common (54.9%) and influenced by testing context, information sources and reasons for testing. Most women reported a positive impact from results (92.7%), shaped by information delivery made and prior knowledge. Regret was rare (3.0%) and linked to reasons and perceived risk changes. Overall, satisfaction was high (97.3%), particularly among those prioritising informed decision-making.

Conclusions

Improving personalised counselling and education throughout the NIPT journey seems crucial to minimise negative emotional impacts, highlighting the need for well-trained healthcare professionals.

Understanding adverse incident responses in mental health care: a qualitative study of systems-based patient safety practices

Por: Challinor · A. · Berzins · K. · Bifarin · O. · Anderson · N. · Xavier · P. · Saini · P. · Morasae · E. K. · Nathan · R.
Background

A key part of the patient safety system is how it responds to and learns from safety incidents. To date, there is limited research on understanding system-based approaches to investigating incidents that occur within this complex interacting system.

Objectives

The aims of this study were to qualitatively explore mental health professionals’ perceptions of patient safety incident investigations; to understand the impact of the transition to systems-based approaches and to explore the influence of different elements of the system on the goals of patient safety.

Design, setting and participants

The qualitative study involved 19 semi-structured interviews with professionals working within the patient safety system across two mental health National Health Service trusts. The data were analysed using thematic analysis.

Results

Those interviewed identified that a change in approach to incident investigation, from root cause analysis to systems-based, would lead to rigorous investigations that are effectively linked to learning. Over time, this was described as a contributory factor to reducing feelings of blame and positively influencing safety culture. There were considerations of potential negative effects from a systems-based approach, such as the shifting rather than elimination of blame, and the possibility of missing individual poor practice. The findings identify the presence of several interdependencies across the system that could have a positive or negative influence on the outcomes of incident responses.

Conclusions

This study demonstrates that the interdependencies within the system and our limited understanding of safety in mental healthcare introduces complexity and uncertainty to incident investigation outcomes. This is likely to impact on safety incident responses and learning, where acknowledging and evaluating this complexity is likely to reduce any potential negative outcomes that exist.

Characteristics, reporting, risk of bias and pragmatism in prehospital emergency care randomised trials from 2010 to 2024: a protocol for a meta-epidemiological study

Por: Tarkanyi · G. · Czina · L. · Ferenci · T. · Hirt · J. · Hemkens · L. G. · Lohner · S.
Introduction

Prehospital emergency care (PEC) requires rapid evidence-based decisions to maximise the effectiveness of care and to improve clinical outcomes. There are multiple challenges related to clinical research performed in the PEC setting. The aim of our study is to systematically review and assess the characteristics, quality of reporting, risk of bias and pragmatism in recent PEC trials, thereby identifying potential gaps and strengths that can guide the design of future prehospital studies.

Methods and analysis

We will systematically search databases MEDLINE, Embase and Cochrane CENTRAL to identify all randomised controlled trials conducted in the field of PEC and published in English language between 2010 and 2024. No restrictions will be made to the participants, interventions and outcomes. Risk of bias will be evaluated using the Cochrane Risk of Bias 2 tool. The level of pragmatism will be assessed using the Pragmatic-Explanatory Continuum Indicator Summary-2 score. Exploratory data analysis will be used to investigate and summarise main patterns. Differences in characteristics between PEC fields, study designs, publication year and associations between pragmatism levels, risk of bias and quality of reporting will be the primary focus.

Ethics and dissemination

There are no ethical concerns directly relevant to this review. This study has been previously registered with the Open Science Framework (osf.io/rzn9j). The manuscript will be submitted for publication to a relevant, peer-reviewed journal.

Predictors of pain and cartilage damage in patellofemoral joint osteoarthritis: stair descent knee kinematics and kinetics

Por: Hammond · E. · Johnson · J. · Haley · T. · Lee · J. · Bucknor · M. D. · Akkaya · Z. · Kreutzinger · V. · Jiang · F. · Pedoia · V. · Majumdar · S. · Souza · R. B.
Objective

To identify gait biomechanical characteristics associated with pain and cartilage damage in individuals with patellofemoral joint osteoarthritis (PFJ OA) during a stair descent activity.

Design

Cross-sectional observational study.

Setting

University-based motion analysis laboratory and musculoskeletal imaging centre.

Participants

83 participants entered the study; 66 participants (41 female, 25 male) completed all components required for this analysis. Participants were recruited via electronic health records following clinical knee MRI. Inclusion criteria included MRI-confirmed patellofemoral cartilage lesions using Whole Organ MRI Score (WORMS) gradings (WORMS >1), pain during stair ambulation, body mass index (BMI) ≤35 and informed consent. Exclusion criteria were tibiofemoral abnormalities (WORMS >1), prior knee trauma, gait-altering conditions, MRI contraindications or pregnancy.

Primary and secondary outcome measures

Primary outcomes included knee joint kinematics and during stair descent, assessed during three-dimensional motion capture, patient-reported outcomes from the Knee Injury and Osteoarthritis Outcome Score (KOOS) questionnaire and WORMS gradings to assess severity of cartilage abnormalities. Regression analyses were performed to examine correlations of biomechanics, age and BMI with pain and cartilage damage. Analyses were also performed on male and female participants separately.

Results

Significant associations were found between biomechanical characteristics and KOOS scores (pain, symptoms and patellofemoral) as well as cartilage damage. For the whole cohort, greater knee flexion at late stance was linked to worse KOOS scores (β=0.53 to 0.71, p

Conclusions

Altered knee biomechanics during stair descent are linked to worse knee pain, function and cartilage damage in PFJ OA, with sex-specific differences emphasising the need for individualised interventions to address movement abnormalities.

Professional Self‐Realisation of Diabetes Nurse Practitioners: A Descriptive Study Using Quantitative and Qualitative Data

ABSTRACT

Introduction

To examine the personal characteristics, promoting factors and organisational barriers to the professional realisation of diabetes nurse practitioners in Israel.

Design

A descriptive study using quantitative and qualitative data.

Methods

The participants self-completed an electronic questionnaire, which included questions on demographic and professional characteristics and a self-realisation questionnaire constructed by the authors. Researcher-led focus groups were conducted, guided by a semi-structured guide. The discussions were recorded, transcribed and analysed by qualitative methods.

Results

Forty-one diabetes nurse practitioners (median age 50 years, 98% females) participated in the study. On average, the participants reported a relatively high self-realisation of their professional role, especially those who have been working in this role for many years. While some of them work independently and are supported by their organisation, their managers and other healthcare team members, specifically physicians, many feel that there are barriers to the full implementation of the role and achieving professional realisation. These include multitasking challenges and insufficient remuneration. Self-realisation was viewed by the participants as an opportunity to provide excellent care to patients as well as being professional beyond caring for patients. They wanted to expand their knowledge as well as guide and teach. Furthermore, they also associated self-realisation with the autonomy to carry out procedures and make decisions independently of physicians. Internal motivation was perceived as an important factor for personal self-realisation, which stems from personal creativity, aspiration for excellence, a subjective sense of freedom, self-guidance, desire for self-development and aspiration for personal growth at the highest levels.

Conclusion

Recognition and fostering of diabetes nurse practitioners' role contribute to nurses' self-realisation and professional growth.

Implications for the Profession

Personal and organisational factors should be aligned to support diabetes nurse practitioners in delivering high-quality care to patients with diabetes.

Reporting Method

COREQ (COnsolidated criteria for REporting Qualitative research).

Patient or Public Contribution

No patient or public contribution.

Time to first optimal glycaemic control and associated factors among adult patients with diabetes at the University of Gondar Comprehensive Specialized Hospital, northwest Ethiopia: a retrospective cohort study

Por: Getahun · A. D. · Ayele · E. M. · Tsega · T. D. · Anberbr · S. S. · Geremew · G. W. · Biyazin · A. A. · Taye · B. M. · Mekonnen · G. A.
Objective

To assess the time to first optimal glycaemic control and its predictors among adult patients with type 1 and type 2 diabetes at the University of Gondar Comprehensive Specialized Hospital in Ethiopia.

Design

A retrospective cohort study.

Setting

University of Gondar Comprehensive Specialized Hospital, northwest, Ethiopia.

Participants

We recruited 423 adult diabetic patients who were diagnosed between 1 January 2018 and 30 December 2022 at the University of Gondar Comprehensive Specialized Hospital.

Outcome measures

The primary outcome was the time from diagnosis to the achievement of the first optimal glycaemic control, measured in months. A Cox proportional hazards regression model was fitted to identify predictors of time to first optimal glycaemic control. Data were collected with KoboToolbox from patient medical charts and exported to Stata V.17. The log-rank test was used to determine the survival difference between subgroups of participants.

Results

Median time to first optimal glycaemic control was 10.6 months. Among 423 adult diabetic patients, 301 (71.16%) achieved the first optimal glycaemic control during the study period. Age category (middle age (adjusted HR (AHR)=0.56, 95% CI 0.41 to 0.76), older age (AHR=0.52, 95% CI 0.33 to 0.82)), comorbidity (AHR=0.52, 95% CI 0.35 to 0.76), therapeutic inertia (AHR=0.20, 95% CI 0.13 to 0.30) and medication non-compliance (AHR=0.49, 95% CI 0.27 to 0.89) were significant predictors of time to optimal glycaemic control.

Conclusion

The median time to first optimal glycaemic control was prolonged. Diabetic care should focus on controlling the identified predictors to achieve optimal glycaemic control early after diagnosis.

The persuasiveness of different sources of information on the decision to vaccinate. A cross-sectional study in Germany during the pandemic at the turn of the year 2021/2022

by Susanne Jordan, Sarah Jane Böttger, Sabine Zinn

Health information about vaccinations is communicated via various sources of information and is crucial for vaccination decisions. Information sources such as interpersonal sources, traditional print and digital media as well as social media offer information about the risks and benefits of vaccination. During health crises such as the COVID-19 pandemic was, some information sources provide hanging or contradictory information, alongside with misinformation and disinformation. Little is known about the relationship between the reported persuasiveness of different sources of information for individual vaccination decisions and differences in this between the vaccinated and unvaccinated. Utilizing data from 10,284 participants in the “Corona-Monitoring Nationwide” survey in Germany from winter 2021/22, this study explored the relationship between the persuasiveness of information sources and vaccination decisions, considering socio-demographic and pandemic-related factors. For more than half of respondents, talks with family, friends, and acquaintances were the most convincing. Traditional media like television and radio were reported by 44%. Newspapers/magazines (online or print) and talks with physicians were each found the most convincing by around one third. About one fifth were persuaded by public authority’s flyers or websites. Less than a tenth each was convinced by social media/messenger services, brochures from pharmacies and health insurances, talks with pharmacy staff or online health portals. Significant differences emerged between vaccinated and unvaccinated individuals. Unvaccinated people were four times more likely to report social media and messenger services as convincing compared to vaccinated people. Reporting talks with doctors and flyers/websites from public authorities as very persuasive significantly reduced the likelihood of being unvaccinated. The findings suggest that in future health crises, information should be disseminated through diverse sources, using both traditional and digital media, as well as interpersonal communication. Proactive science communication on social media and messenger services is crucial to counteract misinformation and disinformation.

Changes in prescription patterns of antidiabetic medication in patients newly diagnosed with type 2 diabetes in Spain: an observational study

Por: Cea-Soriano · L. · Moreno · A. · Calonge · M. · Rivas · A. · Pulido-Manzanero · J. · Colchero · M. C. · Artola · S. · Serrano · R. · Franch-Nadal · J. · Regidor · E. · the PRECOZIN Study Group · Adan · Almanzar · Alonso · Alonso · Alonso · Alvarez · Alvarez · Amoros · Araujo · Arbide
Objective

To estimate the frequency of antidiabetic prescriptions in type 2 diabetes mellitus (T2DM) in Spain and describe changes in prescription patterns between 2018–2022 and 2023-2024.

Design

Observational study.

Participants

Patients from primary care centres newly diagnosed with T2DM in 2018–2022 and 2023–2024.

Primary and secondary outcomes

In each period, the prescription frequency of an antidiabetic medication at the diagnosis of T2DM was calculated and subsequently subdivided into monotherapy and combination therapy. The prescription frequency of the most common antidiabetic drugs was also calculated. Calculations were made for the entire group of subjects and stratified by sex and age (under 60 years and 60 years or older). Comparison of the frequencies between the two periods was performed using the chi-square test.

Results

In 2018–2022 and 2023–2024, 78.4% and 88.9% of patients, respectively, were prescribed an antidiabetic medication. The prescription frequencies for monotherapy and combination therapy were 66.1% and 33.9% in the first period and 57.4% and 42.6% in the second. The prescription frequencies for metformin as monotherapy and combination therapy were 57.4% and 27.8% in the first period and 46.6% and 39.8% in the second. Prescribing metformin with sodium-glucose cotransporter-2 inhibitors (SGLT2i) and/or glucagon-like peptide receptor 1 agonists (GLP1a) was the most frequent combination therapy: 12.8% in 2018–2022 and 29.5% in 2023–2024. With a few exceptions, the prescribing pattern was similar by sex and age. The difference between the prescribing distributions in the two periods is significant.

Conclusion

Antidiabetic medication prescribing at the diagnosis of T2DM was high. Most prescriptions contained metformin. Monotherapy decreased in 2023–2024 compared with 2018–2022, while combination therapy increased due to increased prescriptions of metformin with SGLT2i and/or GLP1a.

Non-pharmacological interventions for delirium in critically ill children: a scoping review

Por: Zilezinski · M. · Denninger · N.-E. · Tannen · A. · Kottner · J.
Objectives

Delirium is one of the most common forms of acute cerebral dysfunction in critically ill children, leading to increased morbidity and mortality. The aim was to identify studies describing or evaluating non-pharmacological interventions to prevent or treat paediatric delirium.

Design

Scoping review.

Data sources

Searches were performed in Medline, CINAHL, Cochrane Library, Ovid (Journals), EMBASE and Web of Science from January 2000 to April 2023. A hand search and update were conducted on 01 June 2024.

Eligibility criteria for selecting studies

We included studies involving critically ill children (0–18 years) in intensive care settings that examined non-pharmacological interventions for the prevention or treatment of paediatric delirium. Only empirical studies and reviews with transparent methodology were considered.

Data extraction and synthesis

Title and abstract screening and full-text review of articles were conducted by two reviewers based on prespecified inclusion criteria. Two reviewers extracted relevant information from the included studies in tabular form. Extracted variables included publication year, title, author(s), country, setting, population and age, design, sample size, intervention components, outcome(s) and findings.

Results

Nine studies were included. In total, 16 different intervention components were identified. The most frequently reported components for preventing and treating paediatric delirium were promoting mobilisation, encouraging family presence and involvement, improving sleep, and standardised instruments or checklists for underlying aetiology. Most intervention studies were before-and-after studies; overall, seven different outcomes were used. Study results regarding the effects of delirium were inconsistent.

Conclusions

Various non-pharmacological interventions are currently described to mitigate paediatric delirium, but the underlying evidence is limited. High-quality intervention research using relevant and comparable outcomes is needed to evaluate the effect of non-pharmacological interventions. Despite employing a comprehensive search strategy, we must consider the possibility that relevant articles were overlooked.

Comparative effectiveness of maintenance doses of opioid agonist treatment among individuals with opioid use disorder: a target trial emulation protocol using a population-based observational study

Por: Zanette · M. · Min · J. E. · Homayra · F. · Bach · P. · Socias · M. E. · Bruneau · J. · Korthuis · P. T. · Karim · E. · Seaman · S. · Bozinoff · N. · Kennedy · M. C. · Nosyk · B.
Introduction

Opioid agonist treatment (OAT) prescribing patterns have shifted in recent years in British Columbia (BC), Canada due to the increasingly toxic unregulated drug supply. Experimental evidence to support guidelines on the effectiveness of maintaining clients at different maintenance dosage levels is incomplete and outdated for the fentanyl era. Our objective is to assess the risk of treatment discontinuation and mortality among individuals receiving different maintenance dosage strategies for OAT with methadone, buprenorphine/naloxone or slow-release oral morphine (SROM) at the population level in BC, Canada.

Methods and analysis

We propose a retrospective population-level study of BC residents initiating OAT on methadone, buprenorphine/naloxone or SROM between 1 January 2010 and 31 December 2022 who were ≥18 years of age with no known pregnancy, no history of cancer diagnosis or receiving palliative care and not currently incarcerated. Our study will employ health administrative databases linked at the individual level to emulate a target trial per OAT type where individuals will be assigned to discrete maintenance dosing strategies, according to the full range observed in BC during the study period. Primary outcomes include treatment discontinuation and all-cause mortality. To determine the effectiveness of alternative maintenance doses, we will emulate a ‘per-protocol’ trial using a clone-censor-weight approach to adjust for measured time-dependent confounding by indication.

Ethics and dissemination

The protocol, cohort creation and analysis plan have been classified and approved as a quality improvement initiative by Providence Health Care Research Ethics Board and the Simon Fraser University Office of Research Ethics. All data are deidentified, securely stored and accessed in accordance with provincial privacy regulations. Results will be disseminated and shared with local advocacy groups and decision-makers, developers of national and international clinical guidelines, presented at national and international conferences and published in peer-reviewed journals electronically and in print.

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