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Convolutional Neural Networks in Chronic Wound Segmentation and Tissue Classification Using Real‐World Images

ABSTRACT

Chronic wounds cause a significant burden to affected patients and to society. Effective and objective diagnostic and monitoring methods are needed in wound care, and artificial intelligence offers one promising alternative. In this study, real-world wound images were used to train a convolutional neural network to automatically segment wound area and wound tissues on an image. The study included altogether 362 images of venous, arterial, vasculitis and pyoderma gangrenosum wounds. The model was based on a convolutional neural network architecture U-Net, and fully supervised learning was utilised during the training phase. Wound area reached a Dice Similarity Coefficient (DSC) of 0.927 and Intersection over Union (IoU) of 0.868 using an augmented dataset with pretraining. Fibrinous exudate and granulation performed fairly well with DSC 0.750 and 0.696, and with IoU 0.659 and 0.601, respectively. Necrosis present in only 56 images achieved lower performance with DSC 0.503 and IoU 0.502. In conclusion, this study suggested that it is possible to train a neural network to perform well with images taken for purely clinical purposes. Besides wound area, several wound structures can be identified, but wound structure identification performance is dependent on the number of images featuring the structure.

Exploring Nurses' Practices in Supporting Sexual Wellbeing of People Living With Inflammatory Bowel Disease: An International Qualitative Study

ABSTRACT

Aim

To explore how nurses across international settings support the sexual wellbeing of people living with inflammatory bowel disease through their clinical practice.

Design

Qualitative descriptive study.

Methods

Online semi-structured interviews and one focus group were conducted with nurses from Australia, Canada, Japan, the Republic of Ireland and the United Kingdom. The interviews were conducted in Japanese (for Japanese participants) and English (for the rest). A total of 28 nurses with extensive experience caring for people living with inflammatory bowel disease were recruited between May 2023 and December 2024 through snowball sampling. Data were analysed using thematic analysis.

Results

The overarching theme identified was ‘careful exploration in real life practice’ with the following primary themes: (1) building the foundation for sexual wellbeing care, (2) addressing sexual wellbeing issues as a team, (3) identifying sexual wellbeing needs and (4) providing personalised nursing support. These themes highlighted the lack of sexual wellbeing care education in nursing, leading to unpreparedness and low confidence among nurses who nonetheless strived to support people living with inflammatory bowel disease despite limited training and communication barriers.

Conclusion

Nurses supported the sexual wellbeing of people living with inflammatory bowel disease by building trust and working collaboratively. They offered individualised care based on each patient's life context, fostering open communication. Despite cultural taboos surrounding sex, similar challenges and training needs were reported across target regions.

Implications for the Profession and/or Patient Care

This study highlights the importance of addressing sexual wellbeing as a key component of holistic care for people living with inflammatory bowel disease. To achieve this, sexual wellbeing should be treated as a routine and important aspect of everyday nursing practice. Furthermore, nurses need to be empowered to play an active role in supporting sexual wellbeing and work in environments that facilitate open and respectful discussions.

Impact

This study addresses the long-neglected issue of sexual wellbeing in inflammatory bowel disease care, which has rarely been explored in nursing research. Drawing on qualitative data from multiple countries, primarily Japan, it offers a new international perspective by illustrating how nurses engage with and support sexual wellbeing. The findings have implications for clinical practice, nurse education and global research on holistic chronic illness care.

Reporting Method

The Consolidated Criteria for Reporting Qualitative Research checklist was followed.

Patient or Public Contribution

This study did not include patient or public involvement in its design, conduct or reporting.

Patients' Concerns and Coping Experiences Related to Sexual Well‐Being in Inflammatory Bowel Disease: A Mixed Methods Study

ABSTRACT

Aim

To explore concerns and coping experiences regarding sexual well-being in inflammatory bowel disease and examine the relationship between these concerns and affected individuals' background factors.

Design

Explanatory sequential mixed methods study.

Methods

Recruitment flyers (n = 1347) were distributed to individuals attending inflammatory bowel disease outpatient clinics in seven facilities. Participants completed a questionnaire assessing demographics, concerns and coping experiences related to their sexual well-being. Those who provided consent participated in semi-structured online interviews. Quantitative data were analysed descriptively, and qualitative data were analysed using content analysis.

Results

A total of 551 participants completed the questionnaire, and 21 participated in the interviews. Among them, 251 (45.6%) reported experiences of concerns related to romantic relationships and marriage, sexual life, pregnancy, childbirth and childcare. The nature of these concerns varied by background factors: unmarried individuals more often reported relationship concerns; those with surgical or perianal history more often reported sexual concerns; and women, married individuals and individuals with Crohn's disease more often reported pregnancy-related concerns. Coping experiences were categorized as (1) active barrier management, (2) partner and professional support, (3) passive or resignation coping and (4) cognitive reframing.

Conclusion

Sexual well-being is significantly affected among individuals with inflammatory bowel disease. Many participants reported understanding and support from significant others or relied on personal coping strategies; however, others reported an absence of coping experiences. Sharing these findings with individuals with inflammatory bowel disease and healthcare professionals may enhance awareness and promote support strategies to improve these individuals' sexual well-being.

Implications for the Profession and/or Patient Care

Concerns about sexual well-being are influenced by both clinical and psychosocial factors, including treatment history, life stage and partner relationships. Healthcare professionals should provide individualised and comprehensive care that incorporates the partners and families of individuals with inflammatory bowel disease to better address sexual well-being.

Impact

This study presents the first large-scale mixed methods evidence on how individuals with inflammatory bowel disease experience sexual well-being, providing direct implications for improving quality of life. By illustrating both adaptive and absent coping strategies, the findings contribute essential insight to inform patient-centred clinical practice and psychosocial care.

Reporting Method

The Good Reporting of a Mixed-Methods Study (GRAMMS) guidelines were followed.

Patient or Public Contribution

No patient or public contribution.

A community based investigation of urban male partners’ understanding and participation in maternity care: A cross-sectional study in Bangladesh

by Quazi Maksudur Rahman, Md. Tajuddin Sikder

Background

Male partners’ adequate understanding and engagement in maternity care plays a crucial role in enhancing women’s reproductive health. However, male involvement in maternal and child health care is still significantly below expectations, even though they perform key roles. Low knowledge levels appear to be a significant barrier to effective involvement.

Objective

To examine the urban married men’s understanding and involvement in maternity care, as well as the factors associated with it.

Methods

In this quantitative study, 422 data were collected through a structured questionnaire via face-to-face interviews between July and September 2022 among urban married males living in Dhaka City. The socio-demographic characteristics, level of understanding, males’ attitude and involvement status regarding maternity care were measured. The descriptive statistics along with logistic regression analysis were performed using STATA version 14.1.

Results

A total of 422 urban married male were considered for this study, and the mean age of the study participants was 37.21 (SD ± 8.79). About 55.92% of the male participants had good understanding and 54% had positive attitude towards maternity care. Around 47% had good involvement in maternity care. Male who had good involvement in maternity care were more likely to have good understanding (AOR: 1.73; CI: 1.13 to 2.64; p = 0.01). In addition, urban male who had government jobs (AOR: 6.48; CI: 1.54 to 27.22; p = 0.01), positive attitude (AOR: 1.79; CI: 1.16 to 2.76; p = 0.01) and good understanding (AOR: 1.74; CI: 1.14 to 2.66; p = 0.01) were more likely to get involved in maternity care.

Conclusion

Maternity care was well-understood and positively viewed by the most urban married males, but their level of involvement was far below the expected level. However, to strengthen safe motherhood initiatives in Bangladesh, it is important to properly address the understanding and participation of urban males in maternity care and other related factors.

Anti-cancer effect of a novel photodynamic therapy using glucose-linked chlorin e6 conjugated trastuzumab for HER2-positive gastrointestinal cancers

by Makiko Sasaki, Mamoru Tanaka, Akihiro Nomoto, Ryusei Yamasaki, Tomokazu Yoshimura, Shigenobu Yano, Yasunari Sasaki, Yuki Kojima, Taketo Suzuki, Hirotada Nishie, Keiji Ozeki, Takaya Shimura, Eiji Kubota, Hiromi Kataoka

Photodynamic therapy (PDT) is an anti-cancer therapy that employs a photosensitizer (PS) and an optimal wavelength of light, causing a photochemical reaction that releases reactive oxygen species, thereby inducing cancer cell death via oxidative stress. Because light irradiation is limited to the tumor site, PDT has minimal adverse effects. The cancer cell selectivity of the PS is important for reducing damage to the normal mucosa caused by scattered light. Antibody-drug conjugates (ADC) are novel anti-cancer therapies that combine a monoclonal tumor-surface-receptor-targeting antibody with a drug bonded through chemical linkers. ADCs enable the targeted delivery of a variety of drugs to cancer cells while minimizing their delivery to healthy tissues. One such tumor surface receptor is the human epidermal growth factor receptor 2 (HER2), which is of interest in the treatment of many cancers, including gastrointestinal cancer. To improve tumor selectivity and minimize damage to the mucosa surrounding the tumor in PDT, we established a novel PS glucose-linked chlorin e6-conjugated trastuzumab (G-Ce6-trastuzumab) that is conjugated to existing PS glucose-linked chlorin e6 (G-Ce6) and evaluated its anti-cancer effect compared to G-Ce6. The effect of PDT was evaluated using HER2-high-expression cells NCI-N87 and HER2-low-expression cells MKN-45. G-Ce6-trastuzumab is internalized by the intracellular organelles in cancer cells. Evaluation of cell death using the WST-8 assay also demonstrated a significantly higher cytotoxic effect of G-Ce6-trastuzumab in HER2-high-expression cells compared with conventional PS G-Ce6. Thereby, G-Ce6-trastuzumab may be an excellent novel PS for PDT because of its strong selectivity for HER2-high-expression cells.

Association between angiotensin receptor-neprilysin inhibitor use and clinical outcomes in patients with heart failure: a 1-year prospective cohort study from Jordan

Por: Odeh · R. S. · Abdel Jalil · M. · Qudah · M. A. · Al-Makhamreh · H. K. · Saleh · A. · Awwad · O.
Objectives

Heart failure (HF) is associated with complex symptoms and frequent hospitalisation that reduce patients’ quality of life (QoL). This study aims to assess the association between angiotensin receptor-neprilysin inhibitor (ARNI) use and changes in QoL and disease-related outcomes among patients with HF in Jordan.

Design

Prospective observational cohort study.

Setting and participants

The study was conducted among patients with HF attending the outpatient cardiology clinics at Jordan University Hospital, a tertiary care centre in Amman, Jordan. Patients either initiated on ARNI or receiving angiotensin-converting enzyme inhibitor (ACEI)/angiotensin receptor blocker (ARB) were included in the study at a 1:2 ratio. All participants were followed up for up to 1 year after recruitment. The study period was from 4 February 2024 to 29 May 2025.

Primary and secondary outcome measures

Data on QoL, New York Heart Association (NYHA) functional class and left ventricular ejection fraction (LVEF) were collected at baseline and after 3 months of treatment. Hospitalisation data were collected for the preceding year and the year following participants’ recruitment. Medication adherence and ARNI side effects were assessed after 3-month of follow-up period.

Results

A total of 227 patients with HF were included; 74 were initiated on ARNI, and 153 were receiving ACEIs/ARBs. At baseline, significantly lower QoL scores and LVEF were observed in the ARNI group compared with the ACEIs/ARBs group. After 3-month, the ARNI group showed improvements in all QoL scores, NYHA functional class and LVEF (p

Conclusions

ARNI use was associated with favourable QoL, NYHA class, and LVEF as well as lower hospitalisation rates among patients with HF in Jordan. The safety profile was consistent with previous studies.

Flow of Medication Information Incidents in the Home Care Setting in Finland: A Qualitative Descriptive Study

ABSTRACT

Aim

To describe the challenges related to the flow of medication information in home care, their contributing factors, and home care registered nurses' and nurse leaders' views on preventing them.

Design

A descriptive qualitative study.

Methods

Six group and one individual semi-structured interview were conducted remotely with 15 home care registered nurses and nurse leaders between 12 February 2023 and 9 November 2023 in Finland. The data were analysed using reflexive thematic analysis.

Results

We identified four main themes related to the challenges of medication information flow: the complexity of home care work in cooperation and the medication process, technology-related challenges, the healthcare professionals' individual factors and client-related challenges. These factors contributed to the challenges: the lack of healthcare professionals' resources, the healthcare professionals' attitudes to work and individual characteristics, the lack of healthcare professionals' uniform practices and client-related factors. Preventing challenges and incidents: strengthening standard healthcare practices, increasing healthcare resources, improving the individual factors of healthcare professionals, and guiding the client in the management of medication.

Conclusion

The medication information flow can be improved by discussing standard practices for the flow of medication information in home care and between home care and hospital teams.

Implications for the Profession and/or Patient Care

It is crucial to identify challenges, contributing factors and prevention in the medication information flow from the home care registered nurses' and nurse leaders' perspective. These elements play an important role in developing medication information flow by collaborating extensively with other healthcare providers, clients, and relatives.

Impact

Healthcare professionals, nurse leaders, and educators can utilise this study's findings to develop the flow of medication information within and between organisations.

Reporting Method

The Standards for Reporting Qualitative Research checklist was used.

Patient or Public Contribution

No patient or public contribution.

Characterising cystic fibrosis in African populations: a scoping review protocol on phenotype, diagnosis, genetics and barriers to care

Por: Ratner · L. · Marangu-Boore · D. · Hamouda · S. · Kwarteng Owusu · S. · Eze · J. · Dakshi · A. · Wordui · S. · Hamdy · A. · Owusu · S. A. · Weldetsadik · Y. · Uluer · A. · Daimi · H. · El Makhzen · N. · Abriel · H. · Nasr · S. · Moosa · S. · Swanson · C. · Cronin · A. E. · Zampoli · M.
Introduction

Cystic fibrosis (CF) is a life-shortening genetic disorder traditionally mischaracterised as affecting only populations of European descent. This framing has contributed to under-recognition of CF in African populations, despite emerging evidence of both common and region-specific cystic fibrosis transmembrane conductance regulator mutations across the continent. Diagnostic barriers, structural inequities and lack of surveillance further exacerbate disparities in care and visibility.

Methods and analysis

This scoping review aims to characterise CF in African populations by synthesising evidence on clinical presentation, diagnostic practices, genotypic diversity, prevalence and structural barriers to care. We will include case reports, cohort studies, registry analyses and other primary data sources involving individuals of African descent with suspected or confirmed CF. Key outcomes include clinical phenotype, age at diagnosis, mutation profile, diagnostic testing access and mortality. Data sources include Ovid Medline, Embase, Ebsco Global Health, CAB Abstracts and Web of Science Core Collection. Multiple-reviewer screening and extraction will be conducted. We will use narrative synthesis, thematic analysis and meta-analysis for prevalence where feasible.

Ethics and dissemination

No ethical approval is required as the review uses published data. Results will be shared with clinicians, researchers and CF networks in Africa and globally to inform diagnostic strategies and policy.

‘Something Was Missing’: A Qualitative Study of Parents' Expectations in Weight‐Related Health Care for Children

ABSTRACT

Aim

To explore how parents perceive health care encounters related to their child's higher weight and to interpret these experiences within the broader societal context shaped by cultural norms and representations.

Design

A qualitative design was employed using semi-structured interviews to capture parents' experiences. The study was informed by a conceptual framework that views weight as both a personal and socially constructed phenomenon.

Methods

Eighteen parents from Finland were interviewed between May 2022 and June 2023. The data were analysed using reflexive thematic analysis to identify key themes in parents' experiences and perceptions.

Results

Three main themes were identified. The relational dimension highlighted the importance of individualised care, where health care professionals take time to get to know the family and recognise each member as an individual. The emotional dimension emphasised the need to protect the child, strengthen parental self-efficacy and provide sensitive, skilled support that fosters a sense of safety. The practical dimension focused on the need for active and targeted care, including structured weight-related routines, multidisciplinary collaboration and services that respond to the everyday realities of families.

Conclusion

The study highlights the need for health care encounters that are individualised, emotionally safe and sensitive to the diverse realities of families. Moving beyond weight-centric approaches, care should offer a range of supportive options that reflect parents' varied expectations, concerns and needs.

Impact

This study responds to the need for a deeper understanding of how parents experience health care encounters related to their children's higher weight. The findings highlight the importance of designing care interactions that provide professionals with adequate time, expertise and training to deliver individualised, stigma-sensitive care.

Reporting Method

COREQ.

Patient or Public Contribution

No patient or public contribution.

Azithromycin use in labour to prevent sepsis among pregnant women undergoing vaginal delivery in Nigeria (AZIN-V): a study protocol for a hybrid type 2 effectiveness-implementation trial

Por: Afolabi · B. B. · Makwe · C. C. · Oluwole · E. O. · Obi-Jeff · C. · Mitchell · E. J. · Banke-Thomas · A. · Adeyemo · T. A. · Abioye · A. I. · Eboreime · E. A. · Saidu · A. D. · Okoro · U. A. · Akintan · P. · Osuagwu · C. S. · Chieme · C. F. · Lawanson · T. · Hossain · A. · Walker · K.
Introduction

Nigeria has the highest number of maternal deaths globally, and maternal peripartum sepsis is one of the leading causes of maternal mortality. A single oral dose of azithromycin (AZM; 2 g) is safe and effectively reduces 33%–60% of maternal sepsis during planned vaginal birth in low- and middle-income countries (LMICs). However, the clinical and cost-effectiveness of oral AZM during vaginal birth in Nigeria remains unknown in the context of poor antimicrobial stewardship practices, significant antimicrobial resistance and healthcare financing. Evidence is also lacking on the standard care for the prevention of maternal sepsis among pregnant women undergoing vaginal births in Nigeria. The AZIN-V trial is a hybrid type 2 effectiveness-implementation trial to determine the safety, clinical and cost-effectiveness of intrapartum oral AZM versus usual care in the prevention of peripartum maternal sepsis. The trial will also examine the impact of implementation strategies in enhancing adherence to the oral AZM protocol during planned vaginal births and identify effective strategies to improve adherence (fidelity) to the protocol in real-world LMIC settings.

Methods and analysis

This is a multicentre hybrid type 2 trial conducted in six Nigerian states: Ebonyi, Edo, Gombe, Kano, Kwara and Lagos. The study aims to simultaneously test the clinical and cost-effectiveness of AZM (clinical trial) and the impact of implementation strategies (implementation research) in Nigeria’s unique healthcare context. The clinical trial is a two-arm, cluster-randomised controlled trial conducted across 48 health facilities, randomly assigned (1:1) to either intrapartum administration of oral AZM (intervention group) or usual care—the current routine practice (control group). A total of 5040 study participants (2520 in each group) will be enrolled in the clinical trial. The implementation trial is a two-arm cluster non-randomised controlled trial conducted in 12 health facilities (1:1) allocated to either a bottom-up approach using the Plan-Do-Study-Act cycle or a usual top-down approach with a one-time training workshop and distribution of clinical guidelines, with both arms administering oral AZM during vaginal birth while assessing fidelity (primary outcome).

For the clinical trial, data will be analysed using intention-to-treat statistical methods. The cost-effectiveness outcome will be analysed using the Incremental Cost-Effectiveness Ratio. Implementation outcomes will be analysed using descriptive statistics and a thematic approach.

Ethics and dissemination

This study has been approved by the National Health Research Ethics Committee, Nigeria (NHREC/01/01/2007-30/09/2024), the ethics committees of the participating health institutions (Lagos University Teaching Hospital Research Ethics Committee: ADM/DSCST/HREC/APP/6325; University of Ilorin Teaching Hospital Health Research Ethics Committee: ERC/PAN/2025/03/0581; University of Benin Teaching Hospital Health Research Ethics Committee: ADM/E22/A/VOL. VII/483117141; Aminu Kano Teaching Hospital Research Ethics Committee: AKTH/MAC/SUB/12 A/P-3/VI/2509 and Irrua Specialist Teaching Hospital Research Ethics Committee: ISTH/HREC/20241507/605), the Ministries of Health of the six states and the National Agency for Food and Drug Administration and Control. Written informed consent will be obtained from all eligible study participants before enrolment. Results will be shared with communities and policy stakeholders and through peer-reviewed journals and will be presented at conferences.

Trial registration number

ISRCTN16415327.

Enarodustat suppresses thymic stromal lymphopoietin expression via hypoxia-inducible factor-mediated c-Jun N-terminal kinases dephosphorylation

by Ryosuke Segawa, Makiko Yagisawa, Chihiro Miyata, Noriyasu Hirasawa

Thymic stromal lymphopoietin (TSLP) is an epithelial-derived cytokine that induces type 2 immune responses through dendritic cell activation, and its aberrant regulation is implicated in TSLP-associated inflammatory disorders including atopic dermatitis. We previously demonstrated that hypoxia-inducible factor (HIF) suppresses TSLP expression in human keratinocyte cells; however, the underlying mechanism remained unclear. In this study, we aimed to explore the suppressive mechanism of enarodustat, an HIF-prolyl hydroxylase inhibitor. Enarodustat selectively suppressed TSLP expression induced by the fibroblast-stimulating lipopeptide (FSL-1), a toll like receptor 2/6 agonist in HaCaT, a human keratinocyte cell line. Although both the nuclear factor-κB (NF-κB) and activator protein (AP)-1 contributed to FSL-1-induced TSLP induction, enarodustat preferentially attenuated AP-1 signaling by reducing c-Jun N-terminal kinase (JNK) phosphorylation. This JNK dephosphorylation required both HIF1α and HIF2α and was accompanied by increased expression of dual-specificity phosphatases (DUSPs), which target JNK for dephosphorylation. Collectively, our findings identify a previously uncharacterized HIF–DUSP–JNK axis that negatively regulates TSLP expression. This study provides mechanistic insight into how HIF activation shapes epithelial cytokine responses, offering a basis for understanding the pathogenesis of TSLP-associated diseases such as atopic dermatitis.

Effect of returning home on university student hunger during South African COVID-19 lockdown

by Fezile Wagner, Unathi Kolanisi, Ryan G. Wagner, Lerato P. Makuapane, Mxolisi Masango, Francesc Xavier Gómez-Olivé

The COVID-19 pandemic exacerbated hunger levels in South Africa, with an increase from 10% pre-pandemic to 23% during the pandemic. Pre-pandemic national and global research identified university students to be more vulnerable to hunger compared to the general population. This elevated risk is commonly associated with prevalent financial mismanagement in this group. However, research investigating the prevalence of hunger during the pandemic among this at-risk group is limited. This cross-sectional study aimed to assess the prevalence and determinants of hunger among students at a South African university during the COVID-19 lockdown, with particular focus on the effect of returning home. An online, self-administered survey produced a sample of 596 students. The Household Hunger Scale (HHS) was used to assess hunger. Most students (84%) who resided in on- or off-campus residences before the lockdown returned home during the lockdown. The weighted prevalence of hunger during lockdown was 16.4% (95%CI 13.6%, 19.6%). Bivariate analyses found living alone to be significantly associated with hunger, while multivariate analyses found that first-generation students (adjusted odds ratio (aOR) = 1.78; 95%CI: 1.04, 3.07, p = 0.015), financial aid recipients (aOR = 2.69; 95%CI: 1.47, 4.91, p = 0.001), and those experiencing financial stress/worry (aOR = 3.38; 95%CI: 1.85, 6.18, p 

<i>Clostridioides difficile</i> infection in Saudi Arabia: Prevalence, risk factors, and outcomes in a tertiary hospital setting

by Abdullah M. Aldhaif, Mohammed A. Al-Garni, Ahmed A. Muyidi, Mohammed H. Makkawi

Background

Clostridioides difficile infection (CDI) remains a major healthcare-associated infection with limited contemporary data from Saudi Arabia. This study evaluated CDI prevalence, risk factors, recurrence predictors, and treatment patterns in hospitalized patients at a tertiary teaching hospital.

Methods

Retrospective analysis of 1,054 hospitalized patients screened between March 2023 and February 2024. CDI was confirmed by positive toxin assay and/or nucleic acid amplification test (NAAT). Demographic, clinical, antibiotic, acid-suppressant, and treatment data were collected. Bivariate associations and multivariable logistic regression were used to identify predictors of recurrence.

Results

CDI prevalence was 10.8% (114/1,054). Median age was 37 years (IQR 51.25); 32.5% had malignancy. Antibiotic exposure preceded CDI in 59.6% (meropenem 24.7%, ceftriaxone 16.5% of courses), and acid suppressants were used in 57.0% (omeprazole 92.3%). Recurrence occurred in 11.4% (13/114). On bivariate analysis, acid-suppressant use was significantly associated with recurrence (p = 0.041). In multivariable logistic regression, only metronidazole plus vancomycin combination therapy independently predicted recurrence (OR 11.29, 95% CI 1.13–112.42, p = 0.039). Trends were observed for malignancy (OR 2.94, p = 0.112) and acid-suppressant use (OR 1.85, p = 0.440), limited by the small number of recurrent events. Metronidazole monotherapy dominated treatment (64.8%).

Conclusion

CDI prevalence reached 10.8% with an 11.4% recurrence rate. Acid-suppressant exposure and combination therapy were key recurrence signals, while metronidazole remains overused despite international guideline shifts. Enhanced antibiotic and acid-suppressant stewardship, alongside improved access to guideline-recommended therapies, are critical to reducing CDI burden in Saudi tertiary hospitals.

Exploring what works, for whom, under what circumstances to transform systems: realist synthesis protocol of four ongoing studies and literature addressing health inequalities

Por: Horck · S. S. · Crone · M. · Kamphuis · C. B. M. · Stevens · G. W. J. M. · Dedding · C. · Bussemaker · J. · van der Pas · S. · van Berkel · J.
Introduction

Health inequalities remain resistant to interventions that primarily target individual behaviour. Although systems approaches are increasingly promoted, their application in practice is often not well grounded in real-world settings. In this protocol paper, we present the approach we will take in an overarching project that synthesises the combined insights of four ongoing systems-based research projects on system-based approaches for reducing health inequalities in the Netherlands. By bringing together and comparing findings across diverse contexts, populations and interventions, we aim to generate an empirically grounded understanding of what works, for whom, in what contexts and why, and to derive actionable strategies for systemic change to reduce health inequalities.

Methods and analysis

We use a realist approach to synthesise insights from the four ongoing projects. The design involves four iterative steps: (1) Identifying cross-cutting themes from project proposals and literature, (2) Developing and refining context–mechanism–outcome (CMO) configurations through literature review and Slow Science meetings, (3) Engaging Critical Friends to co-develop actionable strategies and (4) Assessing and validating these strategies across diverse contexts. Iterative feedback loops ensure continuous refinement, integration of stakeholder perspectives and exploration of emergent challenges. This design enables theory-informed, practice-based strategies to support sustainable system change in reducing health inequalities.

Ethics and dissemination

Ethical approval for the four underlying projects has been obtained from the relevant institutional review boards, and the way their data is used for this overarching project falls within their approved scope. Dissemination will be ongoing and co-created with stakeholders, including policy briefs, factsheets, educational tools and academic publications, to support uptake of strategies for systems change.

Challenges and coping practices of frontline health workers in newly created districts in Uganda: an exploratory qualitative study

Por: Mutebi · A. · Mukuru · M. · Kiwanuka · S. N. · Makumbi · F. · Rutebemberwa · E.
Objective

This paper examines the challenges frontline health workers face, as well as their coping practices following district splitting. It also has ramifications for the need to take into account the nexus between district splitting and subnational health system functioning.

Design

A qualitative cross-sectional study employing an exploratory design. Data were collected using an in-depth interview guide for individual interviews. We used a deductive thematic analysis to identify and structure challenges faced and coping mechanisms by health workers in new districts. The data were analysed deductively using Braun and Clarke’s six-step thematic analysis.

Setting

Frontline health workers from four randomly selected regions with one parent district selected randomly from each region and a respective child district that had been split from it between 2005 and 2015. Interviews were conducted between June and November 2018.

Participants

In-depth interviews were conducted with 24 frontline health workers whose age ranged from 33 to 51 years and these had changed locations between districts after district splitting occurred.

Results

The challenges frontline health workers faced included work-related role changes, social demands, team integration and health system inadequacies. Health workers switched roles across districts, adapting to leadership while balancing clinical and administrative duties. Overall, five themes emerged during analysis. Newly promoted staff faced knowledge gaps in facility management. Social demands included accommodation issues and family/community pressures. Team integration impacted daily work, requiring newcomers to navigate hierarchy and culture. Health system issues, such as understaffing, poor infrastructure, drug shortages and strained work relations, worsened working conditions. Coping practices included induction, leadership training, staff appraisals, duty rosters, supervision, team building, partner support and financial/community planning.

Conclusions

District splitting worsens challenges for frontline health workers. While they show resilience through coping strategies, systemic improvements remain essential. Addressing root causes like better resource distribution, expanded training and stronger administrative support is crucial to achieving the district splitting goal of improving healthcare delivery in newly formed districts in Uganda.

CONsensus-based Process evaluation reporting guideline for public HEalth intervention Studies (CONPHES) conducted alongside an effectiveness trial: an e-Delphi study

Por: van Nassau · F. · Cillekens · B. · Jelsma · J. G. M. · Vis · C. · Mokkink · L. B. · Treweek · S. · van der Ploeg · H. P. · e-Delphi panel members · Anema · Baker · Bakker · Baranowski · Boendermaker · Burke · Chalkley · Chambers · Drozd · Edney · Engell · Finch · Fynn · Goense · Gra
Objectives

Many researchers conduct a process evaluation alongside an effectiveness trial of a public health intervention to better understand mechanisms behind observed effects. Yet, there is no standardised, scientifically accepted guideline for reporting such process evaluations, which impedes interpretation and comparison of study results. The aim of this project was to develop a consensus-based and expert-based guideline for reporting process evaluations of public health interventions conducted alongside an effectiveness trial.

Design and setting

We conducted an e-Delphi study with a large panel of international experts.

Participants

Based on purposive sampling, we invited 137 international experts that had been involved in the design of process evaluations, researchers who published high-profile process evaluations or frameworks, editors of journals that publish process evaluations, and authors of other reporting guidelines.

Results

Based on a literature search, a first draft of the reporting guideline included 32 items, which was proposed to panel members during the first round. Of the invited 137 invited international experts, 73 (53%) participated in at least one round of the e-Delphi study. Participants rated the inclusion and comprehensibility of the proposed items on a 5-point Likert scale and provided comments and suggestions for relevance and definitions of the items. Adjustments to the items and descriptions were proposed to the e-Delphi panel until consensus of ≥67% for each individual item was reached. In total, 64 (88% of 73) completed round 2, and 55 (76% of 73) completed round 3. This resulted in 19 items that are included in the consensus-based process evaluation reporting guideline for public health intervention studies (CONPHES) guideline. The items cover a detailed description of the intervention that is evaluated, the implementation strategies applied, and underlying causal pathways, and the role of the delivery and support team. The guideline also requires describing the evaluation framework and how evaluation outcomes were assessed. Lastly, the guideline includes items on providing a detailed description of applied analyses (both quantitative and qualitative) and measures for assuring quality. The guideline is accompanied by an Explanation and Elaboration document, with a more detailed explanation of each item.

Conclusions

We expect that the CONPHES reporting guideline for process evaluations of public health interventions can improve the reporting of process evaluations of interventions aimed at promoting public health. This can potentially facilitate more effective translation of public health research into practice and contribute to improving both individual and population health outcomes.

Associations between oral health behaviours, oral health, salivary biomarkers and clinical phenotype in individuals with alcohol use disorder: protocol for a longitudinal observational study

Por: Maki · K. A. · Xu · S. · Wallen · G. R. · Gerrard · C. · Sung · C. · Papneja · S. · Tuason · R. T. S. · Ramchandani · V. A. · Diazgranados · N. · Barb · J. J.
Introduction

Binge drinking in the previous month was reported in 23.5% of US adults, and 28.1 million adults met criteria for Alcohol Use Disorder (AUD) in 2023. Individuals with AUD face increased risks of oral health problems, including caries, periodontal disease and mucosal lesions. Poor oral hygiene, nutrition and dental care all contribute to these conditions, but individuals with AUD are often under-represented in oral health surveys. Understanding relationships between oral health behaviours, attitudes and general health is crucial for designing future interventions. This pilot aims to explore the relationship between oral and systemic health in subjects with AUD, focusing on oral health behaviours, salivary biomarkers and clinical phenotype, including systemic biomarkers of inflammation, to inform future research on oral–systemic interactions in AUD.

Methods and analysis

This protocol has two parts. Part 1 involves cognitive interviews to assess the content validity and interpretability of the Oral Health Behaviours Assessment (OHBA) questionnaire. Part 2 will collect biological and behavioural data from treatment-seeking patients with AUD and matched controls (age, sex and smoking status), including saliva, blood, dental exams, and health behaviour and symptom measures. Inpatients with AUD will provide biospecimens and answer symptom severity questionnaires at admission and again at the dental exam visit (7–12 days later), while controls will provide a single set of measures at their dental exam visit. Oral health will be assessed through structured dental and periodontal examinations, radiographs and validated questionnaires (including the OHBA). Additional data will include alcohol use history, psychiatric and medical history assessments, dietary recall, and measures of stress, sleep and mood to capture potential moderators of oral–systemic relationships. Biomarkers of inflammation and stress will be quantified from saliva and blood using immunoassays. Primary outcomes will compare oral health, salivary biomarkers and clinical measures between AUD and controls, while secondary outcomes will evaluate within-subject changes in patients with AUD during inpatient treatment and early abstinence.

Ethics and dissemination

This clinical protocol was approved by the National Institutes of Health Institutional Review Board (IRB #002005). Prior to enrolling, participants will be informed of the study purpose, risks and benefits, and study procedures, and evaluated for understanding prior to signing consent. Part 1 of the protocol is currently active and recruiting participants for cognitive interviews. The study findings will be disseminated through journals and conferences related to addiction medicine, psychology, immunology, neuroscience and dentistry. We expect the results of the pilot study will inform future research on oral health and salivary bioscience while also providing treatment-seeking patients with AUD targeted information on the importance of oral health behaviours for maintaining oral and systemic health.

Trial registration number

NCT06684483; preresults.

Causes of community deaths by verbal autopsy among persons with HIV in 33 districts in Zambia, 2020–2023

by Priscilla Kapombe, Choolwe Jacobs, Mark W. Tenforde, Kashala Kamalonga, Diane Morof, Terrence Lo, Mweene Cheelo, Lloyd Mulenga, Sombo Fwoloshi, Cordilia M. Himwaze, Patrick Musonda, Mpundu Makasa, Jonas Z. Hines

Zambia has achieved improvements in life expectancy among persons living with HIV (PLHIV) because of high antiretroviral therapy (ART) coverage, which should improve survival due to reductions in AIDS-defining conditions. However, recent estimates of the most common causes of death are not widely available. We utilized mortality surveillance data to report on common causes of death among persons with HIV who died in community settings in Zambia. The Zambian Ministry of Health conducted sentinel mortality surveillance of community deaths in 45 hospitals in 33 of 116 districts from January 2020 through December 2023. Verbal autopsies (VA) were conducted through interviews with relatives or close associates of deceased persons using the 2016 World Health Organization tool. HIV status was reported. A probable cause of death was assigned by a validated computer algorithm (InterVA5). We describe the top assigned causes of death stratified by HIV status. Verbal autopsies were conducted for 67,079 community deaths, of which 11,475 (17.1%) were persons with HIV. The mean age at death was 45 years among persons with HIV and 48 years for persons without HIV (T-test p 
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