The increasing global burden of long-term illnesses necessitates high-quality data to inform effective interventions, particularly in low-resource settings. Despite the critical role of data collectors in health research, their lived experiences and challenges remain understudied, especially in low- and middle-income countries (LMICs) like Nigeria. This study explored the experiences, barriers and facilitators encountered by field researchers working with individuals living with long-term illnesses.

A qualitative, descriptive phenomenological design was employed, involving in-depth interviews with 12 research coordinators across 12 healthcare facilities in Nigeria. Participants were purposively selected from the Nigeria Implementation Science Alliance–Model Innovation and Research Centres. Data were analysed using Colaizzi’s phenomenological method, with thematic analysis to identify key patterns.

Field researchers described both rewarding experiences and significant obstacles. While they found value in contributing to impactful research, they faced emotional strain from engaging with sensitive narratives. Key barriers included low health literacy, cultural and religious constraints, hesitation to engage in the study and logistical constraints such as unreliable infrastructure. Facilitators included prefield training, trust-building and support systems. Recommendations emphasised ethical adherence, continuous skill development, context-appropriate incentives and streamlined data collection tools.

The study underscores the need for systemic support for data collectors, including mental health resources, adaptive methodologies and institutional policies that address logistical and emotional issues. These findings advocate for participant-centred, ethically sound research practices to enhance data quality and collector well-being in long-term illness studies.

Future research needs to evaluate interventions to optimise data collection processes in LMICs.

Hypertension is a major modifiable risk factor for cardiovascular disease, and timely detection enables interventions that can substantially reduce this risk. General practice, with continuity of care (COC) as one of its core values, plays a pivotal role in hypertension detection. This study aimed to investigate the association between COC and the detection of hypertension in general practice.

Longitudinal dynamic cohort study.

This study used routine care data from 48 Dutch general practices between 2013 and 2022.

106 755 adults without known cardiovascular diseases or risk factors at baseline.

The Herfindahl-Hirschman Index, an established measure for COC, was used to calculate both general practitioner (GP)- and team-COC. A multivariable Cox proportional hazard regression model was used to assess the association between COC level (low, intermediate, high) and the incidence of hypertension detection.

We included 106 755 patients (59.5% female, median age 35 years) in our analysis. The overall incidence rate was 9.42 hypertension diagnoses per 1000 person-years (95% CI 9.20 to 9.64). Compared with low COC, patients receiving intermediate or high GP-COC had a 1.9 (95% CI 1.7 to 2.1) to 4.9 (95% CI 4.4 to 5.4) higher HR of hypertension detection; patients receiving intermediate or high team-COC had a 2.3 (95% CI 2.2 to 2.5) to 7.3 (95% CI 6.8 to 7.8) higher HR of hypertension detection. High personal continuity was associated with up to 8.3 months (95% CI 8.6 to 7.9) earlier detection of hypertension. The association between COC and hypertension detection was dose-dependent.

This study shows that both GP-COC and team-COC are dose-dependently associated with increased HRs and earlier detection of hypertension in adults without preregistered cardiovascular conditions. Promoting COC contributes to cardiovascular preventive care.

Older adults can have difficulties understanding and recalling information prior to hospitalisation for elective treatment. Limited research exists regarding how older adults perceive the accessibility and comprehensibility of the information provided by the hospital prior to elective hospitalisation. This study aims to explore how older adults undergoing elective hospitalisation for transcatheter aortic valve implantation (TAVI) experience the information received from the hospital and their preferences for modes of information delivery.

A qualitative design was used. Data were collected through individual semistructured interviews with older adults prior to hospital discharge following elective TAVI. The data were analysed using reflective thematic analysis.

All patients scheduled for elective hospitalisation for TAVI at a public university hospital in Norway were screened for eligibility.

18 older adults participated in the study. Their median age was 82 years (range 67–91), and two thirds were males.

The data were categorised into four main themes: ‘The paper brochure is worth its weight in gold’, ‘Combination of different modes of information delivery increased understanding and recall’, ‘Trust reduced the need to access and understand information’ and ‘Family played a crucial role in accessing and interpreting health information’.

Older adults undergoing elective hospitalisation found the traditional brochure valuable, alone or in combination with the digital material, which included an animated film. The participants emphasised that support from family members was required to access the digital information.

People in prison experience disproportionate health burdens compared with community-based populations, including elevated rates of infectious and non-communicable diseases, mental illness and substance use disorders. Previous studies have consistently shown increased rates of mortality following release from incarceration, particularly from external (unnatural) causes such as suicide and violence. However, evidence on mortality incidence during imprisonment is scarce, and many deaths may be preventable through targeted health and prevention interventions. This study aims to synthesise worldwide evidence on all-cause mortality incidence in prisons.

We will conduct a worldwide registry study combined with a systematic literature review and meta-regression analysis. Eligible sources will report deaths among incarcerated people between 2005 and 2025 at the national or, where more appropriate, the subnational jurisdictional level. Mortality data will be retrieved from official reports of prison administrations and direct contact with prison authorities. Also, data from international databases and the scientific literature will be reviewed. Incidence rates of all-cause mortality per 100 000 person-years will be calculated and reported for each jurisdiction, alongside standardised mortality ratios comparing imprisoned populations with general population estimates.

Since the study relies on anonymised routine data registries available from different sources, an exemption certificate was granted by the Ethics Committee of Diego Portales University (UDP) in Santiago, Chile. Findings will be submitted for publication in a peer-reviewed academic journal.

https://osf.io/vkzae.

Cluster analysis, a machine learning-based and data-driven technique for identifying groups in data, has demonstrated its potential in a wide range of contexts. However, critical appraisal and reproducibility are often limited by insufficient reporting, ultimately hampering the interpretation and trust of key stakeholders. The present paper describes the protocol that will guide the development of a reporting guideline and checklist for studies incorporating cluster analyses—Transparent Reporting of Cluster Analyses.

Following the recommended steps for developing reporting guidelines outlined by the Enhancing the QUAlity and Transparency Of health Research Network, the work will be divided into six stages. Stage 1: literature review to guide development of initial checklist. Stage 2: drafting of the initial checklist. Stage 3: internal revision of checklist. Stage 4: Delphi study in a global sample of researchers from varying fields (n=) to derive consensus regarding items in the checklist and piloting of the checklist. Stage 5: consensus meeting to consolidate checklist. Stage 6: production of statement paper and explanation and elaboration paper. Stage 7: dissemination via journals, conferences, social media and a dedicated web platform.

Due to local regulations, the planned study is exempt from the requirement of ethical review. The findings will be disseminated through peer-reviewed publications. The checklist with explanations will also be made available freely on a dedicated web platform (troca-statement.org) and in a repository.