scholarly journals The role of organizational supports in mitigating mental ill health in firefighters: A cohort study in Alberta, Canada

2021 ◽  
Author(s):  
Nicola Cherry ◽  
Jean‐Michel Galarneau ◽  
Whitney Haynes ◽  
Bryan Sluggett
Keyword(s):  
Cohort Study ◽  
Organizational Supports

Factors associated with the development of paediatric chronic otitis media by age nine: a prospective longitudinal cohort study of 6560 children

2020 ◽  
pp. 1-12
Author(s):  
P J Clamp ◽  
K De-Loyde ◽  
A R Maw ◽  
S Gregory ◽  
J Golding ◽  
...  
Keyword(s):  
Cohort Study ◽  
Otitis Media ◽  
Maternal Education ◽  
Univariate Analysis ◽  
Chronic Otitis Media ◽  
Birth Cohort Study ◽  
Control Group ◽  
Factors Associated ◽  
Prospective Longitudinal

Abstract Objective This study aimed to analyse social, health and environmental factors associated with the development of chronic otitis media by age nine. Method This was a prospective, longitudinal, birth cohort study of 6560 children, reviewed at age nine. Chronic otitis media defined as previous surgical history or video-otoscopic changes of tympanic membrane retraction, perforation or cholesteatoma. Non-affected children were used as the control group. Results Univariate analysis demonstrated an association between chronic otitis media and otorrhoea, snoring, grommet insertion, adenoidectomy, tonsillectomy, hearing loss, abnormal tympanograms and preterm birth. Multivariate analysis suggests many of these factors may be interrelated. Conclusion The association between chronic otitis media and otorrhoea, abnormal tympanograms and grommets supports the role of the Eustachian tube and otitis media (with effusion or acute) in the pathogenesis of chronic otitis media. The role of snoring, adenoidectomy and tonsillectomy is unclear. Associations suggested by previous studies (sex, socioeconomic group, parental smoking, maternal education, childcare, crowding and siblings) were not found to be significant predictors in this analysis.

scholarly journals General practitioner use of D-dimer in suspected venous thromboembolism: historical cohort study in one geographical region in the Netherlands

BMJ Open ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. e026846 ◽  
Author(s):  
Angel M R Schols ◽  
Eline Meijs ◽  
Geert-Jan Dinant ◽  
Henri E J H Stoffers ◽  
Mariëlle M E Krekels ◽  
...  
Keyword(s):  
Cohort Study ◽  
General Practitioner ◽  
Clinical Assessment ◽  
Geographical Region ◽  
Historical Cohort ◽  
Diagnostic Work ◽  
Work Up ◽  
Diagnostic Work Up ◽  
D Dimer

ObjectivesTo investigate how many general practitioner (GP)-referred venous thromboembolic events (VTEs) are diagnosed during 1 year in one geographical region and to investigate the (urgent) referral pathway of VTE diagnoses, including the role of laboratory D-dimer testing.DesignHistorical cohort study.SettingGP patients of 47 general practices in a demarcated geographical region of 161 503 inhabitants in the Netherlands.ParticipantsWe analysed all 895 primary care patients in whom either the GP determined a D-dimer value or who had a diagnostic work-up for suspected VTE in a non-academic hospital during 2015.Primary and secondary outcome measuresThe primary outcomes of this study were the total number of VTEs per year and the diagnostic pathways—including the role of GP determined D-dimer testing—of patients urgently referred to secondary care for suspected VTE. Additionally, we explored the use of an age-adjusted D-dimer cut-off.ResultsThe annual VTE incidence was 0.9 per 1000 inhabitants. GPs annually ordered 5.1 D-dimer tests per 1000 inhabitants. Of 470 urgently GP-referred patients, 31.3% had a VTE. Of those urgently referred based on clinical assessment only (without D-dimer testing), 73.8% (96/130) had a VTE; based on clinical assessment and laboratory D-dimer testing yielded 15.0% (51/340) VTE. Applying age-adjusted D-dimer cut-offs to all patients aged 50 years or older resulted in a reduction of positive D-dimer results from 97.9% to 79.4%, without missing any VTE.ConclusionsAlthough D-dimer testing contributes to the diagnostic work-up of VTE, GPs have a high detection rate for VTE in patients who they urgently refer to secondary care based on clinical assessment only.

scholarly journals Role of radiography in predicting progression of osteoarthritis of the hip: prospective cohort study

BMJ ◽  
2005 ◽  
Vol 330 (7501) ◽  
pp. 1183 ◽  
Author(s):  
Max Reijman ◽  
J M W Hazes ◽  
H.A.P Pols ◽  
R M D Bernsen ◽  
B W Koes ◽  
...  
Keyword(s):  
Cohort Study ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Osteoarthritis Of The Hip

scholarly journals Potential role of the lectin pathway of complement in the pathogenesis and disease manifestations of systemic sclerosis: a case-control and cohort study

2014 ◽  
Vol 16 (6) ◽  
Author(s):  
Michael Osthoff ◽  
Gene-Siew Ngian ◽  
Melinda M Dean ◽  
Mandana Nikpour ◽  
Wendy Stevens ◽  
...  
Keyword(s):  
Cohort Study ◽  
Systemic Sclerosis ◽  
Potential Role ◽  
Case Control ◽  
Lectin Pathway

scholarly journals Effect of school reopening on SARS-CoV-2 incidence in a low-prevalence region: Prospective SARS-CoV-2 testing in healthcare workers with primary school-attending children versus without children living at home

2021 ◽  
pp. 175717742110124
Author(s):  
Melvin Frie ◽  
Lisa M Havinga ◽  
Janneke Wiersema-Buist ◽  
Charlotte G Veldman ◽  
Marjan JT de Vries ◽  
...  
Keyword(s):  
Cohort Study ◽  
Population Density ◽  
Severe Acute Respiratory Syndrome ◽  
Primary School ◽  
Primary Schools ◽  
Healthcare Workers ◽  
Regional Strategies ◽  
Low Prevalence ◽  
At Home

Coronavirus disease 2019 (COVID-19) often presents asymptomatically or milder in children compared to adults. The role of young children in the transmission of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) remains largely unknown. In the Netherlands, the first action of loosening the partial lockdown that had been implemented to reduce SARS-CoV-2 transmission was the reopening of primary schools on 1 May 2020. We subsequently conducted a prospective cohort study among healthcare workers (HCWs) with primary school-attending children versus HCWs without children living at home. We tested each HCW three times for SARS-CoV-2 from May 20 to June 15 2020 at 1-week intervals. In total, 832 nasopharyngeal swabs were taken from 283 HCWs with primary school-attending children living at home and 864 nasopharyngeal swabs from 285 HCWs without children living at home. All nasopharyngeal swabs tested negative for SARS-CoV-2. In our region with a low population density and low SARS-CoV-2 prevalence, reopening of primary schools did not lead to an increase in infections. The results of this study may serve as an example for the implementation of regional strategies to reduce SARS-CoV-2 transmission in countries with large variations in both population density and SARS-CoV-2 prevalence.

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