scholarly journals Predictors for mortality due to acute exacerbation of COPD in primary care: protocol for the derivation of a clinical prediction rule

2016 ◽  
Vol 26 (1) ◽  
Author(s):  
César Alameda ◽  
Ángel Carlos Matía ◽  
Verónica Casado

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Feike J. Loots ◽  
Rogier Hopstaken ◽  
Kevin Jenniskens ◽  
Geert W. J. Frederix ◽  
Alma C. van de Pol ◽  
...  


BMJ Open ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. e040730
Author(s):  
Gea A Holtman ◽  
Huibert Burger ◽  
Robert A Verheij ◽  
Hans Wouters ◽  
Marjolein Y Berger ◽  
...  

ObjectivesPatients who present in primary care with chronic functional somatic symptoms (FSS) have reduced quality of life and increased health care costs. Recognising these early is a challenge. The aim is to develop and internally validate a clinical prediction rule for repeated consultations with FSS.Design and settingRecords from the longitudinal population-based (‘Lifelines’) cohort study were linked to electronic health records from general practitioners (GPs).ParticipantsWe included patients consulting a GP with FSS within 1 year after baseline assessment in the Lifelines cohort.Outcome measuresThe outcome is repeated consultations with FSS, defined as ≥3 extra consultations for FSS within 1 year after the first consultation. Multivariable logistic regression, with bootstrapping for internal validation, was used to develop a risk prediction model from 14 literature-based predictors. Model discrimination, calibration and diagnostic accuracy were assessed.Results18 810 participants were identified by database linkage, of whom 2650 consulted a GP with FSS and 297 (11%) had ≥3 extra consultations. In the final multivariable model, older age, female sex, lack of healthy activity, presence of generalised anxiety disorder and higher number of GP consultations in the last year predicted repeated consultations. Discrimination after internal validation was 0.64 with a calibration slope of 0.95. The positive predictive value of patients with high scores on the model was 0.37 (0.29–0.47).ConclusionsSeveral theoretically suggested predisposing and precipitating predictors, including neuroticism and stressful life events, surprisingly failed to contribute to our final model. Moreover, this model mostly included general predictors of increased risk of repeated consultations among patients with FSS. The model discrimination and positive predictive values were insufficient and preclude clinical implementation.



2019 ◽  
Vol 1 ◽  
pp. 100011
Author(s):  
Sarah H. Landis ◽  
Jeanne M. Pimenta ◽  
Shibing Yang ◽  
Chris Compton ◽  
Neil Barnes ◽  
...  






2012 ◽  
Vol 62 (599) ◽  
pp. e415-e421 ◽  
Author(s):  
Jörg Haasenritter ◽  
Stefan Bösner ◽  
Paul Vaucher ◽  
Lilli Herzig ◽  
Monika Heinzel-Gutenbrunner ◽  
...  


2020 ◽  
Author(s):  
Feike J. Loots ◽  
Rogier Hopstaken ◽  
Kevin Jenniskens ◽  
Geert W.J. Frederix ◽  
Alma C. van de Pol ◽  
...  

Abstract Background Early recognition and treatment of sepsis is crucial to prevent detrimental outcomes. General practitioners (GPs) are often the first healthcare providers to encounter seriously-ill patients. The aim of this study is to assess the value of clinical information and additional tests to develop a clinical prediction rule to support early diagnosis and management of sepsis by GPs. Methods We will perform a diagnostic study in the setting of out-of-hours home visits in four GP cooperatives in the Netherlands. Acutely ill adult patients suspected of a serious infection will be screened for eligibility by the GP. The following candidate predictors will be prospectively recorded: 1) age; 2) body temperature; 3) systolic blood pressure; 4) heart rate; 5) respiratory rate; 6) peripheral oxygen saturation; 7) mental status; 8) history of rigors and 9) rate of progression. After clinical assessment by the GP, blood samples will be collected in all patients to measure C-reactive protein, lactate and procalcitonin. All patients will receive care as usual. The primary outcome is presence or absence of sepsis within 72 hours after inclusion, according to an expert panel. The need for hospital treatment for any indication will be assessed by the expert panel as a secondary outcome. Multivariable logistic regression will be used to design an optimal prediction model first, and subsequently derive a simplified clinical prediction rule that enhances feasibility of using the model in daily clinical practice. Bootstrapping will be performed for internal validation of both the optimal model and simplified prediction rule. Performance of both models will be compared to existing clinical prediction rules for sepsis. Discussion This study will enable us to develop a clinical prediction rule for the recognition of sepsis in a high-risk primary care setting to aid in the decision which patients have to be immediately referred to a hospital and who can be safely treated at home. As clinical signs and blood samples will be obtained prospectively, near complete data will be available for analyses. External validation will be needed before implementation in routine care and to determine in which pre-hospital settings care can be improved using the prediction rule. Trial registration The study is registered in the Netherlands Trial Registry (registration number NTR7026).



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