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Hoy — Enero 17th 2026Tus fuentes RSS

Healthcare utilisation among mothers of newborns with invasive group B Streptococcus disease: a 20-year national cohort study

Por: Lykke · M. R. · Sorensen · H. T. T. · Lawn · J. · Horvath-Puho · E.
Objective

Long-term healthcare utilisation (HCU) among mothers of infants with neonatal, invasive group B Streptococcus disease (iGBS) remains understudied; identifying these patterns could provide better support for affected families and address the iGBS public health burden.

Design

Cohort study.

Setting

Population of Denmark.

Participants

1565 mothers of infants with iGBS and 44 976 matched comparators from 1997 through 2021, with follow-up until 2022, using national health and social registry data.

Primary and secondary outcome measures

HCU including primary, inpatient, outpatient, psychiatric and surgical care was evaluated as period prevalence ratio (PPR) and rate ratios compared across three time periods (0–6 years, 7–13 years and 14–20 years) using a modified Poisson regression model and negative binomial regression with 95% CIs.

Results

Mothers of newborns with iGBS had higher PPRs of psychiatric care contacts in the first 0–6 years and 14–20 years following iGBS compared with the comparison cohort (RR0–61.12 (95% CI 0.93 to 1.35), RR14–201.24 (95% CI 0.97 to 1.58)). Exposed mothers had similar PPRs of primary, inpatient and outpatient care use as comparators, except for a slightly higher inpatient care use 7–13 years following iGBS. Exposed mothers had higher RRs for primary, inpatient, outpatient and psychiatric care contacts than mothers in the comparison cohort.

Conclusion

Mothers of iGBS-exposed infants had elevated psychiatric healthcare use and increased primary, and outpatient care visits compared with matched comparators, suggesting heightened healthcare needs and psychosocial burden of caregiving up to 20 years post-iGBS.

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Understanding the effects of reductions in local government expenditure on food safety services in England, 2009-10 to 2019-20: a longitudinal ecological study

Por: Murrell · L. · Clough · H. E. · Zhang · X. · Gibb · R. · Chattaway · M. A. · Green · M. A. · Buchan · I. E. · Barr · B. · Hungerford · D.
Objective

To understand how reductions in resource allocation affect food safety services in England.

Design

This longitudinal ecological study analysed secondary observational data.

Setting

England, data at the local authority level.

Participants

Ecological study, without human participants.

Primary and secondary outcome measures

The primary outcome measures were the number of staff, represented by the number of full-time equivalents per capita, number of interventions per establishment, and proportion of hygiene-compliant establishments.

Results

A £1 decrease in food safety expenditure per capita was associated with a 2% (–3.3 to –0.7) decrease in staffing levels and a 1.6% (–3.2 to –0.1) decrease in the number of interventions achieved per establishment. A one-unit reduction in staff was associated with a 42.2% (–80.5 to –11.9) decrease in the number of interventions achieved. No evidence of an association was found between expenditure or staff levels and the proportion of compliant establishments.

Conclusions

Spending reductions negatively affected the capacity of food safety teams to provide key services. Reductions in food safety expenditure significantly affected food hygiene staff levels and service provision. This finding raises concerns about the capacity of food safety teams to operate and the potential for increased public risk of gastrointestinal infections.

Association of influenza viral genetic information with severity markers in patients hospitalised with influenza: multicentre retrospective cohort study

Por: Myint · A. P. · Shirreff · G. · Baillie · V. · Bal · A. · Boutros · C. F. · Burtseva · E. · Coulibaly · D. · Danilenko · D. · Dbaibo · G. · Destras · G. · Dia · N. · Draganescu · A. C. · Giamberardino · H. I. G. · Komissarov · A. B. · Koul · P. A. · Laguna-Torres · V. A. · LeBlanc · J.
Objective

The objective of this study was to determine the association between viral subtype/clade and disease severity.

Design

Multicentre retrospective cohort study.

Setting

This study used data from the Global Influenza Hospital Surveillance Network (GIHSN). The dataset comprised hospitalised influenza patients with viral sequencing data across 14 countries, collected from August 2022 through October 2023.

Participants

A total of 761 hospitalised patients were enrolled during the study period, and 745 patients were included in the analysis. We excluded patients with missing data on explanatory or outcome variables, those infected with viral clades represented by fewer than 11 sequences, and those enrolled at study sites contributing fewer than 5 patients.

Outcome measures

Disease severity was defined by admission to intensive care unit (ICU), receipt of non-invasive oxygen supplementation, 3-variable definition (ICU, mechanical ventilation or death) or 4-variable definition (3-variable plus oxygen supplementation).

Outcomes were analysed in association with subtype or clade using the mixed-effects logistic regression models, adjusting for age group, sex, underlying medical conditions, influenza vaccination status, antiviral use, country income level and epidemic period, while study site was included as a random effect.

Results

745 patients were included: 263 A(H1N1)pdm09, 380 A(H3N2), 102 B/Victoria. A(H1N1)pdm09 infection was associated with increased odds of ICU admission (adjusted ORs (aORs) 2.5, 95% CI 1.1 to 5.8) compared with A(H3N2). 6B.1A.5a.2a.1 clade of A(H1N1)pdm09 was associated with increased severity compared with 6B.1A.5a.2a clade (aOR 3.0, 95% CI 1.0 to 9.5) and (aOR 5.4, 95% CI 1.6 to 18.3) for the 3-variable and 4-variable definitions respectively. Among A(H3N2), the (3C.2a1b.2a.)2b clade showed a trend toward increased severity using the 4-variable definition compared with the 2a.1b clade (aOR 2.9, 95% CI 0.8 to 10.0).

Conclusions

This analysis highlights the differential impact of influenza subtypes and clades on disease severity in hospitalised patients. Future research should investigate the role of specific viral mutations of these clades in modulating immune evasion or disease severity. These findings reinforce the GIHSN’s critical role in global surveillance. Ongoing genomic surveillance is crucial for understanding the clinical impact of emerging influenza variants and informing public health responses.

Sex-specific machine learning models for carotid plaque prediction in individuals with fatty liver disease: a cross-sectional study

Por: Cheng · Y. · Yang · J. · Zheng · H. · Yin · H. · Yin · D. · Wang · H. · Wang · Y.
Introduction

Early detection of carotid plaque prevents stroke and myocardial infarction. Individuals with fatty liver might be at an increased risk of developing carotid plaque, yet limited access to carotid artery ultrasound underscores the need for predictive models.

Aims

We aimed to construct six predictive models for males and females separately to predict carotid plaque among individuals with fatty liver disease.

Design

A cross-sectional study.

Data sources

We included 8361 participants aged ≥40 years (4871 males; 3490 females) with fatty liver who underwent at least one health check-up between 1 January 2020 and 31 December 2023.

Methods

The sex-stratified dataset was randomly divided into 70% training and 30% internal testing datasets. With 24 potential predictors, we applied four machine learning (ML) algorithms and two conventional logistic regression (LR) models: stepwise LR and LR based on ML-selected features (LR-ML) to develop sex-specific carotid plaque prediction models. The performances were evaluated by area under the receiver operating characteristic curve (AUC), sensitivity, specificity, precision, F1-score, accuracy, calibration curve and decision curve analysis.

Main outcome measures

Carotid plaque was determined when the local carotid intima-media thickness was ≥1.5 mm in any of the arterial segments.

Results

Four predictors (age, hypertension, total bilirubin, total cholesterol and white blood cell count) in males and three (age, systolic blood pressure and fasting blood glucose) in females were identified by consensus across the four ML algorithms and subsequently used to construct LR models. Among all 4 ML and two LR models, the gradient boosting machine model demonstrated the best overall performance in males (AUC=0.773, 95% CI 0.749 to 0.797), while the LR-ML model was optimal in females (AUC=0.817, 95% CI 0.791 to 0.843). Calibration and decision curve analyses further demonstrated satisfactory agreement and higher net benefit across sexes. Risk stratification identified distinct low-, intermediate- and high-risk groups with progressively higher observed prevalence of carotid plaque (20.25%, 48.58% and 69.41% in males; 15.28%, 50.89% and 66.56% in females).

Conclusion

Our findings highlight significant sex differences in practical carotid plaque prediction, providing crucial insights for public health implications in the early identification and risk assessment of carotid plaque among individuals with fatty liver.

Epidemiological characteristics of major respiratory infectious diseases in Baiyin, China, from 2014 to 2023: a descriptive epidemiological study

Por: Zhan · Z. · Xie · T. · Zhao · T. · Zhang · X. · Zhang · S. · Wang · M. · Xu · Q. · Cheng · Y. · Liu · Y. · Yang · S. · Cui · F.
Objective

To analyse temporal trends of respiratory infectious diseases (RIDs) in Baiyin City from 2014 to 2023, aiming to explore the epidemiological patterns of these diseases (tuberculosis, scarlet fever, pertussis, measles, influenza, mumps, varicella and rubella) and provide evidence for developing effective prevention and control strategies.

Design and setting

A descriptive epidemiological study was conducted to analyse the incidence of tuberculosis, scarlet fever, pertussis, measles, influenza, mumps, varicella and rubella in Baiyin City, China, from 2014 to 2023, using data from the national notifiable disease reporting system.

Participants

All reported cases of eight notifiable RIDs in Baiyin City between 2014 and 2023 were included in the analysis. Data were categorised by age and sex.

Methods

Joinpoint Regression Software was employed to estimate both the annual percentage change in incidence and the average annual percentage change, facilitating a phased comparison of incidence trends.

Results

Between 2014 and 2023, the annual incidence of major bacterial RIDs (tuberculosis, scarlet fever and pertussis) in Baiyin City fluctuated between 52.69 and 87.94 per 100 000 population, demonstrating an overall declining trend. Specifically, the annual decrease rates for the age groups of 0–14 years, 15–59 years and ≥60 years were 11.62% (95% CI –20.26% to –2.16%), 6.44% (95% CI –10.37% to –2.46%) and 5.15% (95% CI –9.12% to –1.07%), respectively. The annual incidence of major viral RIDs (measles, influenza, mumps, varicella and rubella) fluctuated between 111.70 per 100 000 and 541.12 per 100 000. No significant temporal trend was observed for major viral RIDs in Baiyin City. With the exception of pertussis, measles and rubella, the overall incidence rate was significantly higher in males than in females (p

Conclusion

From 2014 to 2023, the annual incidence of major bacterial RIDs in Baiyin City showed an overall decline, mainly due to a reduction in tuberculosis incidence, whereas the annual incidence of major viral RIDs fluctuated and rose sharply in 2023. The overall incidence of both major bacterial and viral RIDs was consistently higher in males, with major viral RIDs occurring predominantly in children aged 0–14 years and major bacterial RIDs being more common in older adults aged ≥60 years. Further efforts are needed to monitor the epidemiological patterns and develop strategies to reduce the incidence of major viral RIDs, particularly among children aged 0–14 years.

Association between cumulative radiation dose and haematological parameters among Korean radiation workers: a retrospective cohort study

Por: Sung · H. · Cha · E. S. · Lee · D. N. · Park · S. · Jang · W. I. · Cho · M. · Ko · Y.-J. · Ju · S. D. · Kim · J.-H. · Seo · S.
Objective

To evaluate the association between cumulative radiation dose and haematological parameters among radiation workers and compare the prevalences of abnormalities in blood counts with those in the general population.

Design

Retrospective cohort study.

Setting

Nationwide radiation dose registry in Korea, linked with occupational health examination data. Cumulative doses were estimated using annual personal dose equivalent (Hp(10)) records from 1984 onward.

Participants

The study included 20 414 radiation workers, comprising 17 651 men (86.5%) and 2763 women (13.5%), with baseline survey data, dosimetry records and at least one complete blood count (CBC) record between 2014 and 2019.

Primary and secondary outcomes

The primary outcome was the continuous haematological parameters, including white blood cell (WBC), platelet (PLT) and haemoglobin (Hb) counts, in relation to cumulative radiation dose. Associations were evaluated using linear mixed-effects models incorporating repeated measurements and adjusting for age, smoking status and body mass index. The secondary outcome was the prevalence of abnormal blood counts among radiation workers.

Results

Most haematological parameters among radiation workers were within normal ranges. In male workers, cumulative radiation dose was associated with increased Hb levels (β=0.5 mg/dL per 1 mSv; 95% CI 0.006 to 0.9) after adjusting for age, smoking status and body mass index. No significant associations were observed between cumulative dose and WBC or PLT counts in either sex. Overall, compared with the general population, radiation workers had significantly lower standardised prevalence ratios for abnormal WBC and PLT counts.

Conclusion

No substantial adverse changes in haematological parameters were found among radiation workers exposed to prolonged low-dose radiation. The findings suggest that cumulative doses at occupational levels may not substantially affect CBC profiles, although continued monitoring and follow-up are warranted.

Clinical relevance of screening for ECG abnormalities in 67-year-old Danes: a population-based cohort study from the Viborg Screening Programme (VISP)

Por: Van Der Giessen · D. · Hogh · A. · Svenstrup · D. · Lindholt · J. S. · Dahl · M.
Objectives

To describe the point prevalence of major ECG abnormalities, their coexistence with screen-detected cardiovascular disease (CVD) and the proportion requiring referral for cardiac work-up and interventions.

Design

A population-based cohort study.

Setting

Primary and secondary care settings in Denmark.

Participants

Since 2014, all 67-year-old Danish men and women from Viborg municipality were invited to the ‘Viborg Screening Programme’ (VISP).

Interventions

VISP includes screening for lower extremity artery disease (LEAD), carotid plaque (CP), abdominal aortic aneurysm (AAA), hypertension, diabetes mellitus and cardiac conditions.

Primary outcome measures

A single resting 12-lead ECG was recorded and coded using the Minnesota criteria. Major ECG abnormalities were divided into rhythm and rate disorders, signs of myocardial damage and conduction disorders.

Results

Over the first 5 years, 4612 (83.8% of those invited) were screened, with 4437 (96.4%) undergoing an ECG. We found major ECG abnormalities in 152 (3.4%), including 92 (2.1%) rhythm and rate disorders, 28 (0.6%) with signs of myocardial damage and 32 (0.7%) with conduction disorders. Fifty-nine (1.3%) had newly screen-detected ECG abnormalities, and 34 (0.8%) required intervention after cardiac consultation (32 medication adjustments and/or 11 advanced treatments). Participants with major ECG abnormalities had a higher frequency of coexisting CVD, including CP (46.4% vs 38.1%; p=0.040), LEAD (9.5% vs 5.3%; p=0.026) and AAA (2.7% vs 0.9%; p=0.032) and were also more common in men than in women (4.7% vs 2.2%; p

Conclusion

This study provides a detailed overview of major ECG abnormalities in a population-based cardiovascular screening context. Although the yield of ECG screening was low, ECG may still add value as a simple and low-cost tool within multimodal programmes, enabling timely detection and treatment.

Trial registration number

NCT03395509.

Cervical high-risk human papillomavirus infection and its associated risk factors: a community-based cross-sectional study in hard-to-reach areas in Bangladesh

Por: Nazrul · N. · Rahman · A. · de Fouw · M. · Campbell · C. · Koot · J. · Kulsum · M. U. · Ahmed · M. S. · Haider · S. S. · Hossain · M. A. · Islam · K. M. · Nessa · A. · Amrin · M. · Stekelenburg · J. · Beltman · J. J.
Objectives

This study aimed to determine the prevalence of cervical high-risk human papillomavirus (hrHPV) in a community-based setting and its risk factors association in women living in hard-to-reach areas in Bangladesh.

Design

A cross-sectional study

Setting

The study was carried out in six subdistricts, located in hard-to-reach and climate-impacted regions of Bangladesh.

Participants

A total of 8000 married women aged 30–60 years were invited for screening. Women who were unable to give consent, were pregnant or had a hysterectomy with removal of the cervix, previous screening less than 5 years, or treatment of the cervix or had symptoms of potential cervical cancer were excluded.

Interventions

A community-based hrHPV self-collected screening for cervical cancer was conducted from June 2022 to July 2023.

Main outcome measures

Prevalence of cervical hrHPV and risk factor association.

Results

11 127 women were eligible for screening; 7850 women submitted hrHPV self-swabs, 7828 valid HPV test results were reported and 164 women (2.1%) tested hrHPV positive. Women living in the North were 2.1 times more likely to be hrHPV positive compared with women living in the South (adjusted OR (AOR)=2.1, 95% CI: 1.5 to 3.8, p=0.023) and widowed women were 3.0 times more likely to be hrHPV positive than married women (AOR=3.0, 95% CI: 1.7 to 5.3, p=0.001). Another risk factor associated with testing hrHPV positive was the use of hormonal contraceptives for 5 years and above (AOR=7.0, 95% CI: 2.0 to 24.4, p=0.002).

Conclusion

The study identified a low overall prevalence of hrHPV infection (2.1%) among women in hard-to-reach areas in Bangladesh, with some regional variations. Higher prevalence was observed in widowed compared with married women and among women reporting more than 5 years of hormonal contraceptive use. This study shows no evidence of particularly high-risk groups in hard-to-reach areas in Bangladesh. The findings support the feasibility of implementing a nationwide hr-HPV-based self-sampling strategy as a viable approach to reach WHO targets for reducing the burden of cervical cancer. Recommendation for policymakers to support future research to identify hrHPV prevalence among women in comparable groups in other geographically remote areas in Bangladesh.

Trial registration number

NCT05234112.

Prevalence, determinants and ethnic disparities of rheumatoid arthritis among older adults in Canada: protocol for a systematic review and meta-analysis

Por: Mussie · L. · Mutwiri · G. · Yoseph · A.
Introduction

Rheumatoid arthritis (RA) is a chronic autoimmune disease characterised by progressive joint inflammation, pain and functional decline, disproportionately affecting older adults. In Canada, evidence regarding the prevalence, determinants and ethnic disparities of RA among older populations remains fragmented. This protocol outlines a systematic review and meta-analysis designed to estimate the pooled prevalence of RA, identify its key determinants and examine ethnic disparities among Canadian adults aged 60 years and older.

Methods and analysis

A comprehensive literature search will be undertaken across MEDLINE, EMBASE, CINAHL, Web of Science, Scopus, and relevant grey literature sources to identify studies published between January 2000 and October 2025, with the search scheduled to be conducted between 15 and 30 November 2025. Observational studies reporting RA prevalence or determinants in Canadian adults aged ≥60 years will be eligible. Two reviewers will independently perform study selection, data extraction and risk-of-bias assessment using the Joanna Briggs Institute critical appraisal tools. Data will be synthesised using a random-effects model (logit-transformed or binomial GLMM), with subgroup analyses by ethnicity, sex/gender and geographic region. Equity-related factors will be examined using the PROGRESS-Plus framework. The protocol has been reported in accordance with the Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols 2020 guidelines.

Ethics and dissemination

This study uses publicly available, published data and does not require ethics approval. The review will commence in November 2025 and is expected to conclude by April 2026. Findings will be shared through peer-reviewed journals, conferences and policy briefs, reaching clinicians, researchers and health policymakers. By presenting results to both academic and broader audiences, the review seeks to promote equitable, evidence-informed decision-making in rheumatology care across Canada.

Association between carotid-femoral pulse wave velocity and cardiovascular disease in individuals with moderate blood pressure: a systematic review and individual participant meta-analysis

Por: Pavey · H. · Wood · A. · Mceniery · C. M. · AlGhatrif · M. · Arshi · B. · Brunner · E. · Chen · C.-H. · Cheng · H.-M. · Hansen · T. W. · Ikram · M. K. · Kavousi · M. · Kuh · D. · Kuipers · A. L. · Lakatta · E. G. · Linneberg · A. · Mattace Raso · F. · Mitchell · G. F. · Maldonado · J. · Ne
Objectives

The predictive value of carotid-femoral pulse wave velocity (cfPWV) for cardiovascular (CV) events in individuals with blood pressure (BP) 120–159/80–99 mm Hg, where more accurate risk stratification has the greatest clinical effect, is unknown. This study aims to determine whether cfPWV improves the prediction of CV events beyond traditional risk factors in individuals with moderate BP.

Design

A systematic review and meta-analysis.

Data sources

PubMed and EMBASE were searched through April 2023.

Eligibility criteria

We included prospective, population-based cohort studies with ≥1 year follow-up that directly measured cfPWV as an index of arterial stiffness and reported incident CV disease (CVD), atherosclerotic CVD (ASCVD), coronary heart disease, stroke or all-cause mortality outcomes.

Data extraction and synthesis

Individual participant data from 11 cohorts (n=15 987) were harmonised and analysed using two-stage random-effects meta-analysis. Incremental predictive and clinical utility analyses compared 10-year risk models with and without cfPWV.

Results

There were 1279 first atherosclerotic CV events over a median follow-up of 9.9 years. A 1-SD increase in loge(cfPWV) was associated with a 1.21-fold (95% CI 1.08 to 1.36) increase in risk of ASCVD. Adding cfPWV to traditional risk factors improved ASCVD prediction: change in discrimination (C-index): 0.0048 (95% CI 0.0002 to 0.0094), p=0.041. In hypothetical populations of 100 000 individuals with moderate BP, cfPWV-guided treatment could reduce event rates by 2.7% and 3.1% under European and US guidelines, respectively.

Conclusions

Adding cfPWV to traditional CV risk factors may improve the prediction and classification of first CV events in individuals with moderate BP. Additional screening with cfPWV could enhance risk stratification for antihypertensive treatment initiations.

Identifying long-term healthcare and sociodemographic risk factors for lower extremity amputation: a 10-year national registry-based case-control study in Denmark

Por: Jensen · P. S. · Kallemose · T. · Kirketerp-Moller · K. · Juul-Larsen · H. G.
Objectives

To identify early-occurring healthcare and sociodemographic risk factors associated with lower extremity amputation (LEA) by analysing health trajectories up to 10 years before amputation.

Design

A national, observational, registry-based matched case–control study.

Setting

The Danish universal healthcare system, using national health registers.

Participants

We included 2551 individuals who underwent first-time LEA in 2017–2018 and matched each to two control groups: (1) The Community Controls Group representing the average population who were matched on age, sex and municipality (n=12 748) and (2) a Diabetes Mellitus/Peripheral Arterial Disease (DM/PAD) Control Group matched on age, sex and DM or PAD duration (n=12 478) representing a high-risk population.

Primary outcome measures

Presence of healthcare, sociodemographic and medication-related risk factors associated with LEA was evaluated across three time periods leading up to amputation: the Immediate (0–2 years prior), Early (2–5 years prior) and Long-term (5–10 years prior) risk period.

Results

Polypharmacy and antibiotic use—particularly dicloxacillin targeting Staphylococcus aureus—were strongly associated with LEA across all time periods. Dicloxacillin was prescribed on average 7.8 years prior to major amputation, with long-term ORs of 2.99 (95% CI 2.51 to 3.56) and 2.07 (95% CI 1.75 to 2.46) compared with community and DM/PAD controls. Opioid and paracetamol use also showed strong associations. Individuals with LEA were more likely to live alone and have lower educational attainment. Frequent dental visits were inversely associated with risk.

Conclusions

This study identifies characteristics associated with LEA, including long-term exposure to dicloxacillin and opioid analgesics, alongside polypharmacy and socioeconomic disadvantage. These factors were detectable up to 10 years before amputation and may serve as early indicators for risk identification and guide targeted general practitioner interventions.

Epidemiological investigation and patterns of antimicrobial use in multidrug-resistant bacteria at a tertiary hospital: a retrospective cohort study

Por: Wang · M. · Cao · Y. · Zhang · J.-H. · Ma · S.-N. · Wang · Y. · Miao · T. · Xiao · W. · Fu · Q.
Objective

To analyse trends and characteristics of multidrug-resistant (MDR) bacteria over the past 7 years, in relation to patterns of antimicrobial use, to inform rational antimicrobial use and strengthen hospital infection control measures.

Design

Retrospective cohort study.

Setting

A large teaching hospital in Tianjin, a major metropolitan city in northern China.

Participants

A total of 190 352 inpatients aged >18 years, admitted between 1 January 2017 and 31 December 2023, were included. Patients were eligible if they had complete clinical data and met the five quality control indicators for multidrug-resistant bacteria (QC-MRB), defined in the ‘Hospital Infection Surveillance Specifications’ (WS/T 312–2023). Patients with MDR infections before admission or those with duplicate results from multiple specimens were excluded.

Results

Statistical analysis revealed a detection rate of 12.11% for the five QC-MRB and an incidence rate of 0.20%. The findings also indicated an upward trend in the detection and incidence rates of carbapenem-resistant Enterobacteriaceae, despite a relatively stable rate of antimicrobial use over 7 years. A positive correlation was observed between the incidence of MDR bacteria and the intensity of antimicrobial use within the hospital setting.

Conclusions

The hospital’s bacterial data align with national trends. It established an interdisciplinary management framework for clinical data analysis and prediction of antimicrobial resistance. This approach enhances infection control measures and supports the rational use of antimicrobials.

Development and validation of a case identification algorithm for hand trauma patients using health administrative data and the epidemiology of hand trauma in a universal healthcare system

Por: Wong · C. R. · Tu · K. · Hernandez · A. · Urbach · D. R. · Witiw · C. · Hansen · B. · Ko · A. · Tsai · P. · Baltzer · H.
Objectives

Our primary objectives were (1) to develop and validate an administrative data algorithm for the identification of hand trauma cases using clinical diagnoses documented in medical records as the reference standard and (2) to estimate the incidence of hand trauma in a universal public healthcare system from 1993 to 2023 using a population-based research cohort constructed using a validated case identification algorithm.

Design

A population-based retrospective validation study.

Setting

Ontario, Canada, from 2022 to 2023 (validation) and from 1993 to 2023 (estimation).

Participants

Our reference standard was the known hand trauma status of 301 patients (N=147 with hand trauma) who presented to an urban tertiary-care hand trauma centre in Toronto, Ontario.

Primary and secondary outcome measures

(1) The sensitivity, specificity, positive and negative predictive values of the optimal algorithm to identify hand trauma using provincial health administrative data and (2) age-standardised and sex-standardised incidence rates of hand trauma among men and women, by age, and by area of patient residence.

Results

The optimal algorithm had a sensitivity of 73.8% (95% CI 66.6% to 81.0%), specificity of 80.1% (95% CI 73.8% to 86.5%), positive predictive value of 78.1% (95% CI 71.2% to 85.0%) and negative predictive value of 76.1% (95% CI 69.5% to 82.7%). Over the study period, the age-standardised and sex-standardised incidence of hand trauma increased from 384 to 530 per 100 000. The greatest increase was observed in males and individuals aged 0–19 and 80+, with higher incidence rates in Southern compared with Northern Ontario.

Conclusions

Our algorithm enabled identification of hand trauma cases using health administrative data suitable for population-level surveillance and health services research, revealing a rising burden of hand trauma from 1993 to 2023. These findings can support improved surveillance, resource allocation and care delivery for this public health problem.

Studying COVID-19 transmission in US state prisons using an agent-based modelling approach: a simulation study

Por: Owens · A. L. · Fliss · M. · Brinkley-Rubinstein · L.
Objectives

We aim to use an agent-based model to accurately predict the spread of COVID-19 within multiple US state prisons.

Design

We developed a semistochastic transmission model of COVID-19.

Setting

Five regional state-owned prisons within North Carolina.

Participants

Several thousand incarcerated individuals.

Primary and secondary outcome measures

We measured (1) the observed and simulated average daily infection rate of COVID-19 for each prison studied in 30-day intervals, (2) the observed and simulated average daily recovery rate from COVID-19 for each prison studied in 30-day intervals, (3) the mean absolute percentage error (MAPE) of each prison’s summary statistics and the simulated results and (4) the parameter estimates of key predictors used in the model.

Introduction

The COVID-19 pandemic disparately affected incarcerated populations in the USA, with severe morbidity and infection rates across the country. In response, many predictive models were developed to help mitigate risk. However, these models did not feature the systemic factors of prisons, such as vaccination rates, populations and capacities (to determine overcrowding) and design and were not generalisable to other prisons.

Methods

An agent-based model that used geospatial contact networks and compartmental transmission dynamics was built to create predictive microsimulations that simulated COVID-19 outbreaks within five North Carolinian regional prisons between July 2020 and June 2021. The model used the characteristics of an outbreak’s initial case size, a given facility’s capacity and its incarcerated vaccination rate as additional parameters alongside traditional susceptible-exposed-infected-recovered transmission dynamics. By fitting the model to each prison’s data using approximate Bayesian computation methods, we derived parameter estimates that reasonably modelled real-world results. These individualised estimates were then averaged to produce generalised parameter estimates for North Carolina state prisons overall.

Results

Our model had a mean average MAPE score of 23.0 across all facilities, meaning that it reasonably forecasted facilities’ average daily positive and recovery rates of COVID-19. Our model estimated an average incarcerated vaccination rate of 54% across all prisons (with a 95% CI of ±0.12). In addition, the prisons of this study were estimated to be operating at 90% of their capacity on average (95% CI ±0.16). Given the high levels of COVID-19 observed in these prisons, which averaged over one-third positive tests on respective 1-day maxima, we conclude that vaccination levels were not sufficient in curbing COVID-19 outbreaks, and high occupancy levels likely exacerbated the spread of COVID-19 within prisons.

In addition, data gaps in facilities without recorded daily testing resulted in poor spread predictions, demonstrating how important consistent data release practices are in incarcerated settings for accurate tracking and prediction of outbreaks.

Conclusion

The findings of this study better quantify how spatial contact networks and facility-level characteristics unique to congregate living facilities can be used to predict infectious disease spread. Our approach also highlights the need for increased vaccination efforts and potential capacity reductions to mitigate COVID-19 transmission in prisons.

Exploring a panel of serum biomarkers for cancer risk in patients with non-specific symptoms: a comparative analysis of feature selection methods

Por: Monroy-Iglesias · M. J. · Santaolalla · A. · Martin · S. · North · B. · Moss · C. · Haire · K. · Jones · G. · Steward · L. · Cargaleiro · C. · Bruno · F. · Millwaters · J. · Basyal · C. · Weild · S. · Russell · B. · Van Hemelrijck · M. · Dolly · S.
Objectives

Delays in cancer diagnosis for patients with non-specific symptoms (NSSs) lead to poorer outcomes. Rapid Diagnostic Clinics (RDCs) expedite care, but most NSS patients do not have cancer, highlighting the need for better risk stratification. This study aimed to develop biomarker-based clinical prediction scores to differentiate high-risk and low-risk NSS patients, enabling more targeted diagnostics.

Design

Retrospective and prospective cohort study.

Setting

Secondary care RDC in London.

Participants

Adult patients attending an RDC between December 2016 and September 2023 were included. External validation used data from another RDC.

Outcome measures

The primary outcome was a cancer diagnosis. Biomarker-based risk scores were developed using Latent Class Analysis (LCA) and Least Absolute Shrinkage and Selection Operator (LASSO). Model performance was assessed using logistic regression, receiver operating characteristic curves (AUROC) and decision curve analysis.

Results

Among 5821 RDC patients, LCA identified high white cell count, low haemoglobin, low albumin, high serum lambda light chain, high neutrophil-to-lymphocyte ratio, high serum kappa light chain (SKLC), high erythrocyte sedimentation rate (ESR), high C-reactive protein (CRP) and high neutrophils as cancer risk markers. LASSO selected high platelets, ESR, CRP, SKLC, alkaline phosphatase and lactate dehydrogenase. Each one-point increase in score predicted higher odds of cancer (LCA: AOR 1.19, 95% CI 1.16 to 1.23; LASSO: AOR 1.29, 95% CI 1.25 to 1.34). Scores ≥2 predicted significantly higher cancer odds (LCA: AOR 3.79, 95% CI 2.91 to 4.95; LASSO: AOR 3.44, 95% CI 2.66 to 4.44). Discrimination was good (AUROC: LCA 0.74; LASSO 0.73). External validation in 573 patients confirmed predicted increases in cancer risk per one-point LASSO score rise (AOR 1.28, 95% CI 1.15 to 1.42), with a borderline increase for LCA (AOR 1.16, 95% CI 1.06 to 1.27).

Conclusion

Biomarker-based scores effectively identified NSS patients at higher cancer risk. LCA captured a broader biomarker range, offering higher sensitivity, while LASSO achieved higher specificity with fewer markers. These scores may also help detect severe benign conditions, improving RDC triage. Further validation is needed before broader clinical implementation.

Systematic review and meta-analysis of the non-specific and broader impact of respiratory vaccines on acute lower respiratory infections in young children

Por: Holland · C. · Oakes · D. · Sarna · M. · Chai · K. · Ng · L. · Moore · H. C.
Objectives

Growing evidence suggests that vaccines targeting respiratory pathogens have non-specific and broader effects. We aimed to investigate the non-specific effects of respiratory vaccines on acute lower respiratory infection (ALRI) hospitalisations and associated outcomes in children

Design

Systematic review and meta-analysis.

Data sources

We searched online databases including Medline, Embase, CINAHL, Scopus and Clinical Trials.gov from inception to 24 January 2024.

Eligibility criteria

We included human studies involving non-specific/off-target effects of respiratory vaccines (including maternal, infant and childhood vaccines) and excluded studies investigating the Bacille Calmette-Guérin vaccine and non-pathogen-confirmed outcomes following pneumococcal conjugate vaccination (PCV).

Data extraction and synthesis

We used Research Screener, a machine learning tool, to semi-automate the abstract screening process and Covidence, a management and streamlining software for full-text reviews and data extraction. A meta-analysis was conducted if four or more studies reported on the same outcome and the same exposure vaccine.

Results

After removing duplicates, 9727 articles were identified. After screening and full-text reviews, 20 articles were eligible. Of those, four met the requirements for a meta-analysis which showed a 21% vaccine effectiveness (VE) (95% CI 8.0% to 32.0%) of maternal influenza vaccine against all-cause ALRI hospitalisations in infants

Conclusions

Our review demonstrated both protective and neutral non-specific effects of respiratory vaccines against ALRI-hospitalisations and related outcomes in young children. Such effects should be considered as part of the full value of a vaccine and how vaccine investments are prioritised. Further research on the impact of respiratory vaccines on antibiotic prescribing rates is essential as consistent reductions may help contribute to reducing the global burden of antimicrobial resistance.

PROSPERO registration number

CRD 42023476038.

Influence of the COVID-19 pandemic on drug and healthcare utilisation among First Nations with diabetes in Alberta, Canada: a retrospective cohort study

Por: Weaver · O. · Sarin · C. · Samanani · S. · Crowshoe · L. · Ye · M. · Eurich · D. T.
Objectives

The purpose of this study was to assess changes in diabetes management and healthcare utilisation among First Nations with diabetes in Alberta before and during the COVID-19 pandemic.

Design

This analysis used a retrospective cohort in a case–control design. Individual-level administrative health datasets (1 April 2018 to 31 March 2022) were linked and data were formatted as a segmented interrupted time series.

Setting

This study took place in Alberta, Canada using administrative data.

Participants

Adult First Nations and non-First Nations (matched 1:1) with diabetes and living in Alberta were included (n=28 101; 53% female, 47% male).

Primary and secondary outcome measures

The primary outcome was the change in incidence rate of general practitioner (GP) visits, emergency department (ED) visits, hospitalisations and diabetes-related drug dispenses during-COVID-19 versus pre-COVID-19, quantified using generalised linear regressions. The secondary outcome was to report the reasons for non-drug outcomes pre-COVID-19 and during-COVID-19, based on primary diagnosis International Statistical Classification of Diseases and Related Health Problems codes.

Results

Pre-COVID-19, baseline rates of GP visits, ED visits, hospitalisations and drug dispenses were significantly higher among First Nations compared with non-First Nations (rate differences 398.32 (391.97–404.67), 100.58 (98.32–102.84), 14.49 (13.56–15.43), 876.98 (868.72–885.24) per 100 person-years (PY); p

Conclusions

Healthcare utilisation was substantially elevated among First Nations compared with non-First Nations peoples before and during COVID-19. While the generalisability of our findings to other health systems and populations may be limited, our findings are clinically applicable among First Nations across Alberta in order to help direct public health programming post-COVID-19.

Survival and factors associated with mortality among people with tuberculosis in Medellin, Colombia (2018-2023): a retrospective cohort study

Objective

To determine the survival rate and prognostic factors associated with tuberculosis (TB) mortality in Medellín between 2018 and 2023.

Design

Quantitative observational analytical study of a retrospective cohort.

Setting

Based on notifications made to the Public Health Surveillance System and managed by the Secretary of Health of Medellín—Colombia between 2018 and 2023.

Participants

A total of 11 202 individuals diagnosed with TB, aged between 1 and 103 years.

Primary and secondary outcome measures

The Kaplan-Meier method was employed to determine survival and risk functions, as well as median survival. Crude HRs and adjusted HRs (aHRs) were estimated using Cox proportional hazards regression models.

Results

A median overall survival of 1410 days (3.86 years) and an adjusted mortality rate of 40 cases per 100 000 population were estimated for the study period (6 years). Factors associated with TB mortality were age (>59 years) (aHR 5.53; 95% CI 3.17 to 9.65), renal disease (aHR 2.98; 95% CI 2.27 to 3.90), HIV infection (aHR 2.82; 95% CI 1.39 to 3.32) and cancer (aHR 2.56; 95% CI 1.95 to 3.34).

Conclusions

TB survival is influenced by age and comorbidities, indicating the need for targeted strategies to protect high-risk groups. Strengthening comprehensive TB control through timely diagnosis, integrated management of chronic conditions and patient-centred care is essential to reduce preventable deaths. Furthermore, improving case notification and follow-up through integrated information platforms will contribute to more effective public health interventions.

Prevalence of epilepsy and the epilepsy treatment gap in Bauchi, Northeast Nigeria: a cross-sectional study of two communities

Por: Nuhu · U. A. · Alkali · N. H. · Hassan · H. F. · Garba · M. · Abdulrauf · T. · Ibrahim · A. · Owolabi · L. · Ogunniyi · A. O.
Objective

Epilepsy prevalence varies widely across Nigeria, with rates ranging from 3.1 to 37.0/1000 population. There have been no studies on epilepsy prevalence and treatment gap in the Northeast Region of Nigeria. This study aimed to study epilepsy prevalence and the epilepsy treatment gap (ETG) in an urban and a rural community in Northeast Nigeria.

Design

Cross-sectional, community-based survey.

Setting

Epilepsy screening of residents in two communities in Northeast Nigeria using a WHO screening tool and a validated study questionnaire from 1 March to 10 June 2022.

Participants

8599 community residents aged ≥2 years.

Outcome measures

Prevalence of epilepsy, active epilepsy, ETG and associated factors.

Results

We screened 8599 residents, of whom 88 had epilepsy. Crude epilepsy prevalence was 10.2 per 1000 and was three times higher in the rural than in the urban community (18.5 vs 6.4; 2=26.79, p2=0.087, p=0.768). Logistic regression analysis showed that the ETG was associated with a lack of counselling (OR 15.8, 95% CI 3.5 to 70.7, p

Conclusion

The prevalence of epilepsy in Bauchi State was within the range reported in Nigeria but three times higher in the rural than in the urban community. A high ETG was associated with poor counselling of people with epilepsy. Epilepsy counselling, health education and wider access to neurology services could reduce the burden of epilepsy in Northeast Nigeria.

Folate exposures and risk of colorectal cancer: an umbrella review of meta-analyses of observational studies and randomised controlled trials

Por: Li · T. · Yin · L. · Li · Y. · Huang · L. · Zhang · K. · Wang · H. · Xu · D. · Yan · J. · Huang · G.
Objectives

To systematically summarise and evaluate the existing evidence of the associations between diverse folate exposures and the risk of colorectal cancer (CRC), while identifying evidence quality.

Design

Umbrella review of meta-analyses.

Data sources

PubMed, Web of Science, Cochrane and Embase were searched from the database inception to March 2024, with an update to 12 October 2025.

Eligibility criteria

We included meta-analyses of randomised controlled trials or observational studies that investigated the associations between folate exposures and CRC or precancerous lesions (ie, adenoma and polyps).

Data extraction and synthesis

For each association, we recalculated the summary effect size with 95% CI using the DerSimonian and Laird random-effects model, heterogeneity (I² statistic), 95% prediction interval, small-study effect (Egger’s test) and excess significance bias (² test).

Results

This umbrella review included five meta-analyses describing 10 associations between folate exposures and CRC risk. In the general population, moderate-quality evidence supported an inverse association between total folate intake (from foods and supplements) and CRC risk (RR 0.84; 95% CI 0.80 to 0.90), while low-quality evidence suggested inverse associations of dietary folate intake (from foods alone) (RR 0.88; 95% CI 0.81 to 0.96) and folic acid supplement intake (RR 0.83; 95% CI 0.77 to 0.90) with CRC risk. Among patients with inflammatory bowel disease, low-quality evidence suggested an inverse association between folic acid supplement intake and CRC incidence (HR 0.71; 95% CI 0.53 to 0.96). Additionally, elevated circulating folate levels were observed to have a provoking effect on advanced-stage tumours (OR 1.95; 95% CI 1.18 to 3.22; Grading of Recommendations Assessment, Development and Evaluation (GRADE): very low). Sensitivity analysis revealed a potential increased risk of adenoma recurrence associated with folic acid supplement use among patients with a history of adenoma (RR 1.05; 95% CI 0.86 to 1.29; GRADE: high).

Conclusions

These findings suggest that consuming dietary folate and total folate intake may be beneficial in CRC primary prevention. Specifically, folic acid supplements may inhibit colorectal carcinogenesis in normal tissues while promoting cancer in the established neoplastic foci.

PROSPERO registration number

CRD42024537550.

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