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Effectiveness and cost-effectiveness of a 9 week multi-component cycling programme versus an existing single cycling training session: protocol for the Cycle Nation Communities randomised controlled trial

Por: Lawlor · E. R. · Gabler Trisotti · M. F. · McIntosh · E. · McConnachie · A. · Gill · J. M. R. · Gray · C. M.
Introduction

Cycling can be beneficial for health, well-being and the environment; however, cycling participation in the UK remains low. Effective and cost-effective strategies are needed to support people in the community to increase cycling. The Cycle Nation Communities randomised controlled trial (RCT) will evaluate whether a 9 week multi-component cycling programme (Cycle Nation) is more effective and cost-effective than an existing national cycle training session on cycling participation, transport use and health and well-being.

Methods and analysis

This pragmatic, single-blinded, two-arm RCT will recruit ≥268 adults who cycle infrequently. Participants will be randomised to the 9 week multi-component individual/social-level group-based Cycle Nation programme or an existing national standard single group-based cycle training session. Both arms will be delivered by community-based cycling organisations in Glasgow. Participants will complete self-reported measurements at baseline, 12 weeks and 12 months. The primary outcome is the proportion of participants cycling at least weekly at 12 months. Secondary outcomes include proportion of participants cycling at least weekly at 12 weeks; change in weekly number of rides and minutes of cycling and use of private car, taxi, public transport and walking at 12 weeks and 12 months; change in motivation, perceptions of cycling safety, confidence to cycle, self-esteem, vitality, health-related quality of life and perceived general physical health at 12 weeks and 12 months. A within-trial economic evaluation from a National Health Service/personal social service and a broader societal perspective will be undertaken. Pending within-trial results, a long-term model may be developed. An embedded process evaluation will use participant and facilitator interviews, participant acceptability questionnaires, facilitator delivery proforma and session observations.

Ethics and dissemination

Ethical approval has been obtained from the University of Glasgow Medical, Veterinary and Life Sciences Ethics Committee (11 April 25). Findings will be published in peer-reviewed journals and communicated to stakeholders and the public.

Trial registration number

NCT07005674.

Biobanking knowledge and donation willingness among musculoskeletal patients in England: a multisite cross-sectional study

Por: Boakye Serebour · T. · Kerasidou · A. · Gray · N. · Griffin · X. L. · Peach · C. · Singh · H. P. · Wheway · K. · Ambrosio · M. d. G. · Baldwin · M. · Snelling · S. J. B.
Objective

To date, few studies have investigated the factors associated with musculoskeletal patients’ willingness to donate biological samples and their knowledge regarding the use of such samples. We investigated the associations between these distinct knowledge factors, patients’ willingness to donate and socio-demographic factors.

Design

Cross-sectional survey.

Setting

Musculoskeletal outpatient clinics across four sites in England, representing varied demographic populations.

Participants

A total of 469 adult patients attending musculoskeletal appointments were recruited through convenience sampling.

Primary and secondary outcome measures

Ordinal regression models were employed to identify socio-demographic and clinical predictors of patients’ willingness to donate biological samples. Other outcome measures specifically in two areas of patient knowledge include: (1) knowledge of sample use and (2) knowledge of surgical waste tissue value and management.

Results

Only 37% of participants were aware of the term ‘biobank’. Despite this, participants showed a high level of knowledge regarding both biological sample use and surgical waste tissue management, although their understanding varied considerably by ethnicity and education. Participants with no formal education exhibited a lower level of knowledge in both areas related to sample use and surgical waste tissue management for biomedical research ((OR 0.30, 95% CI 0.14 to 0.61; p=0.001); (OR=0.29, 95% CI 0.16 to 0.52, p

Conclusions

Despite low awareness, musculoskeletal patients showed a high willingness to participate in biobanking. However, significant disparities by ethnicity and education persist. Targeted, inclusive engagement strategies are needed to address under-representation and foster informed, equitable participation of musculoskeletal patients in biomedical research.

Pathogenic bacterial species and the microbiome of cat fleas (<i>Ctenocephalides felis</i>) inhabiting flea-infested homes

by Taylor E. Gin, Charlotte O. Moore, Trey Tomlinson, Grace Wilson, Amiah Gray, Cameron Sutherland, Kamilyah Miller, Krista Li, Michael Canfield, Brian Herrin, Erin Lashnits, Benjamin Callahan

Background

Ctenocephalides felis is a common ectoparasite of dogs and cats and can transmit a variety of pathogens including Bartonella and Rickettsia species. These bacteria, along with the known endosymbiont Wolbachia, are well-documented members of the C. felis microbiome, but species-level information is limited. Additionally, little is known about the variation in the C. felis microbiome in fleas from different sources and when different sequencing methods are applied to the same samples.

Objective

This study aimed to characterize the flea microbiome using both short-read (V3/V4) and long-read (full-length) 16S rRNA gene sequencing, determine whether long-read sequencing improves species-level identification especially in known pathogenic genera, and evaluate differences in microbial composition between fleas collected from cats, dogs, and environmental traps.

Methods

Fleas were collected from cats, dogs, and traps in flea-infested homes in Florida, pooled by source, and sequenced using short- (V3/V4) and long-read (full-length) 16S rRNA gene sequencing. Microbial prevalence and abundance were compared across sequencing approaches. Community composition was evaluated for differences between sources and houses. Candidate members of the flea microbiome were identified based on a combination of prevalence, abundance, and statistical signatures of potential contaminant origin. For Rickettsia and Bartonella, species-level taxonomic assignments were refined using a phylogenetic approach.

Results

Wolbachia, Rickettsia, and Bartonella were the most prevalent and abundant taxa. Spiroplasma was identified as a fourth core member of the flea microbiome. Long-read sequencing enabled better, but not perfect, species-level classification of Bartonella and Rickettsia compared to short-read sequencing. Important relationships between specific ASVs and flea sources were identified, for example fleas from cats harbored higher abundances of B. clarridgeiae and B. henselae than fleas from traps.

Leveraging COVID-19 to modernise depression care for VA primary care populations: protocol for a sequential explanatory mixed method evaluation

Por: Leung · L. B. · Brayton · C. E. · Shepardson · R. L. · Gray · C. P. · Lee · M. L. · Funderburk · J. S. · Fortney · J. C.
Background

The Veterans Health Administration (VA) integrated mental and physical health services to better detect and treat depression. Primary care nurses conduct screening annually. Clinicians, including Primary Care Mental Health Integration (PCMHI) specialists, follow-up as needed for treatment. Depression detection and management processes are complex, involve multilevel stakeholders, and are subject to significant disruption from COVID-19 and from the resulting expansion of telehealth, aiming to preserve care access. This study aimed to examine whether the COVID-19 pandemic worsened depression-related care quality and/or patient outcomes (eg, suicide).

Methods

Given hypothesised care disruption (lowered care quality) during COVID-19, we will first assess the VA population’s trajectory from a new positive depression (and suicide risk) screen to appropriate treatment (ie, medication, therapy) in the Fiscal Year 2019–2323. We will also examine the changing mix of virtual and in-person depression care delivered. Second, we will use interrupted time series analyses to explore the extent to which psychiatric emergency visits and hospitalisations may be mitigated by clinician detection of depression. As well as compare mental health-related mortality rates between patients detected and not detected to have depression. Subanalyses will reveal where (eg, clinics with low PCMHI access) and for whom (eg, minorities) detection does not systematically occur, and downstream negative sequelae, to guide future intervention. Finally, we will interview 40 veterans, half of whom were detected and half not detected to have depression and 40 VA primary care and PCMHI providers about changes brought on by the pandemic and the expansion of virtual care across three VA facilities. In addition to contextualising disrupted care findings, qualitative data will help identify best practices on patient-to-provider and provider-to-provider interactions in hybrid in-person/telehealth depression care models.

Ethics and dissemination

Ethics approval was granted by the VA Greater Los Angeles Healthcare System Institutional Review Board. Alongside journal publications, dissemination activities include briefings to our policy and operational partners, and presentations to clinical, research and policy-oriented audiences.

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.

Equitable inclusion of racialised communities in genomic research: a scoping review

Por: Valiani · A. · Raihan · M. M. H. · Aroua · M. · Chowdhury · N. · Anderson · D. · Gray · M. · Hardcastle · L. · Turin · T. C.
Objectives

Genome Canada has committed significant resources to ensure that racialised groups are included in its initiatives; however, specific equity considerations related to engaging these communities in human genomic research continue to require deeper attention and exploration. This scoping review aims to widen the frame of analysis concerning inclusive human genomics by undertaking a synthesis that includes perspectives from genomicists, decision and policymakers, legal experts in bioethics and leaders from racialised communities.

Design

We conducted a comprehensive scoping review using the Arksey and O’Malley framework to examine the equitable participation of racialised communities in human genomic research.

Eligibility criteria

Our goal was to identify the barriers preventing these populations from equally participating in human genomic research. The review focused on studies from five countries: Canada, the USA, the UK, Australia and New Zealand which have similar immigration patterns and have received racialised populations from from some of the same communities around the globe. These features makes studying these particular countries germane to studying the common challenges they face in human genomics research.

Data sources

Our scoping review examined both academic and grey literature, including MEDLINE, EMBASE, PsycINFO (inception to 11 June 2025), CINAHL (to 12 June 2025) and Cochrane Central Register of Controlled Trials (CENTRAL) (to 19 June 2025), as well as Google Scholar and OAISter (October, 2023).

Data extraction and synthesis

Data were analysed using Braun and Clarke’s thematic synthesis guidelines. These included familiarisation with the relevant texts in the selected articles, generating initial codes using an inductive approach, reviewing potential themes and finalising the themes based on the consensus of the research team.

Results

The study identified key barriers and facilitators to participation in human genomic research among racialised communities. The first theme (exclusion) highlighted obstacles such as a lack of transportation, limited knowledge of genetics and distrust stemming from concerns of stigmatisation and health disparities. The second theme (diversity of positions) described varied perceptions influenced by cultural values and motivations, with preferences for transparency and autonomy in research participation. Finally, the third theme (equity in genetic research) outlined the limited use of community-based participatory models and biobanking, underscoring the need for more inclusive and equitable research practices to fully engage racialised communities.

Conclusion

Future research should prioritise strategies of authentic engagement with racialised communities to enhance both inclusivity and equity in genetic, human genomic, precision medicine and precision health research.

Examining the impact of the first wave of COVID-19 on equitable access to emergency care across Alberta demographic groups: a retrospective observational study

Por: McLane · P. · Gray · M. · Barnabe · C. · Rittenbach · K. · Bill · L. · Holroyd · B. R. · Lang · E. · Stang · A. · Hayward · J. · Henderson · R. · Cummings · G. G. · Rosychuk · R.
Background

During the first wave of the COVID-19 pandemic, there was a notable decline in emergency department (ED) usage in many jurisdictions. This study assessed changes in ED use during this period and explored how the pandemic may have aggravated existing healthcare access inequities.

Objectives

Our primary objective was to assess pandemic-related changes to ED visits and emergency hospitalisations for distinct demographic groups.

Design

We conducted a retrospective observational study using population-based provincial administrative data.

Setting

We analysed data from all the 109 EDs and urgent care centres in Alberta, Canada, during the first wave of the COVID-19 pandemic (15 March 2020 to 30 June 2020), and during the corresponding (control) period 1 year earlier. We conducted subgroup analyses by age, First Nations status, sex, location and material deprivation. We repeated all analyses for pre-selected life-threatening emergency diagnoses.

Populations

We examined outcomes for a priori subgroups, including female and ‘other’ sex patients, paediatric patients (age 0–17 years), seniors (age 65 years and older), patients living in remote areas (greater than 200 km from an urban centre), First Nations members and patients living in materially deprived postal codes falling into the two most deprived Pampalon Index quintiles.

Primary and secondary outcome measures

Primary outcomes were number of ED visits, number of ED visits with admission to hospital and number of ED visits resulting in patient death in the ED. A secondary outcome was change in ED use for life-threatening diagnoses (eg, cardiac conditions and hepatic disease).

Results

ED visits in the COVID-19 period decreased by 34% (Poisson means test p

Conclusion

Reductions in critical emergency care and emergency hospital admissions were unequally distributed across demographic groups during the COVID-19 period. Study methods could be used to monitor and support equitable access to emergency care among distinct populations.

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