920 research outputs found

    Parenting Stress: A Comparison of Grandmother Caretakers and Mothers

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    Parenting stress in grandmother caretakers has not been directly compared with a matched sample of mothers in the caretaker role. This study examined the main and interaction effects of caretaker status, employment, and race on parenting stress and whether these factors affect parenting stress in a convenience sample of grandmothers raising grandchildren (n = 86) and a sample of mothers of preschoolers (n = 86), matched for women’s partner status, race, and employment. Grandmothers raising grandchildren reported more overall parenting stress and parental distress than mothers. Non-employed women reported more negative perceptions of their children and more difficult interactions with them. When controlling for contextual variables, grandmother caretakers showed greater parenting distress, but employment was not related to parenting stress. Being Caucasian and caretaking of older children affected overall parenting stress, parent-child interactions, and perceptions of one’s children. Future research needs to consider the effect of outside influences on grandmothers’ stress

    Integrating the patient and caregiver voice in the context of pediatric, adolescent, and young adult care: A family-centered approach

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    Family-centered care (FCC) is defined as an approach to care coordination founded in collaborative partnerships between healthcare providers, patients and their family caregivers. Amid the enthusiasm for FCC in the pediatric setting, opportunities have been identified to operationalize the engagement of pediatric, adolescent and young adult patients and their caregivers into decision making that translates not only to their healthcare, but also to the context in which care is provided, as well as the research informing their care. At a National Cancer Institute-designated comprehensive cancer center, the Children’s Cancer Hospital was instrumental in designing and implementing patient and family engagement councils to inform institutional policies, guidelines, environment of care and research. The councils include: he Family Advisory Council, the Supportive Care Council, the Young Adult Advisory Council, and the Patient Advisory Council for Teens (imPACT). The development and outcomes of these councils is presented as an exemplar for patient and family engagement that translates to tangible healthcare delivery initiatives

    Balancing Yin and Yang: the development of a framework using Participatory Action Research for the Translation and Implementation (Part 1) of new practices

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    Context: Despite the demonstrable benefits of many healthcare innovations, embedding research findings into practice has been slow and sporadic. [1,2] Many implementation frameworks exist, however most havebeen criticised for not having a strong theoretical underpinning. This study addresses this gap by reviewing the current models to propose a new, theoretically driven framework for change management and translation. Methods: This study is reported in two parts. In part 1, a systematically-based literature review was undertaken. Following this, part 2 included conducting focus groups with academics to verify the model and provide feedback on the new framework. Findings: The gaps in current implementation frameworks identified include deficiencies in the areas of individual and social behaviour, participatory action, operationalisation and evaluation of the frameworks. The Quality Implementation Framework (QIF) [3] was used to provide the basis to develop a robust extended model, which addressed those areas that were identified as deficient in the current frameworks. By combining the best parts of extant models with a translation and implementation foci, we developed the PARTI model that is underpinned by commitment to change (Ying) and change fidelity (Yang) at each of its four stages, which included a behavioural questionnaire and implementation checklist. PARTI stands for Participatory Action Research, Translation and Implementation. Conclusions: The implementation of change in healthcare delivery is difficult and demanding, and healthcare managers look to change frameworks for guidance. The PARTI model has been developed to provide a systematic approach to implementing changed practices that is repeatable, reliable and scalable. Abbreviations: ISF – Interactive Systems Framework; PAR – Participatory Action Research; PARTI – Participatory Action Research for Translation and Implementation; QIF – Quality Implementation Framework; TDF – Theoretical Domains Framework

    The Oregon Promise Barley Population: A tool for understanding the genetic basis of traits fundamental for barley production, malting, brewing, and distilling

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    The simultaneous availability of unique germplasm resources and cost-effective high-throughput genotyping allows for accelerated genome exploration and gene discovery. Our germplasm -the Oregon Promise population- is an array of 200 barley doubled haploids developed from the cross of Full Pint x Golden Promise. The spring 2-row parents have contrasting alleles at two of the dwarfing genes deployed in current varieties. The four homozygous combinations of these plant height alleles lead to contrasting phenotypes and each allele has pleiotropic effects on a range of other traits. Golden Promise is an iconic variety for malting, brewing, and distilling; Full Pint is a contributor to the craft brew Renaissance. Accordingly, the Oregon Promise will provide a valuable resource for extending current knowledge of malting and brewing genes to the frontiers of sensory assessment. The population shows transgressive segregation for adult plant resistance to stripe rust. As this disease is likely to become increasingly prevalent as a consequence of climate change, expanding the catalog of genes conferring durable resistance to this pathogen is an essential defensive breeding step. The availability of a quick-turnaround and cost effective SNP genotyping service (400+ markers) at Eureka Genomics (developed in collaboration with the James Hutton Institute) allows accelerated linkage map construction, QTL detection, and unraveling of gene interactions and pleiotropic effects based on the multi-environment, multi-trait phenotyping of the Oregon Promise population. This project is possible thanks to the tools and knowledge generated by the USDA-NIFA T-CAP project.Peer Reviewe

    Early and Empirical High-Dose Cryoprecipitate for Hemorrhage After Traumatic Injury: The CRYOSTAT-2 Randomized Clinical Trial

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    IMPORTANCE: Critical bleeding is associated with a high mortality rate in patients with trauma. Hemorrhage is exacerbated by a complex derangement of coagulation, including an acute fibrinogen deficiency. Management is fibrinogen replacement with cryoprecipitate transfusions or fibrinogen concentrate, usually administered relatively late during hemorrhage. OBJECTIVE: To assess whether survival could be improved by administering an early and empirical high dose of cryoprecipitate to all patients with trauma and bleeding that required activation of a major hemorrhage protocol. DESIGN, SETTING, AND PARTICIPANTS: CRYOSTAT-2 was an interventional, randomized, open-label, parallel-group controlled, international, multicenter study. Patients were enrolled at 26 UK and US major trauma centers from August 2017 to November 2021. Eligible patients were injured adults requiring activation of the hospital\u27s major hemorrhage protocol with evidence of active hemorrhage, systolic blood pressure less than 90 mm Hg at any time, and receiving at least 1 U of a blood component transfusion. INTERVENTION: Patients were randomly assigned (in a 1:1 ratio) to receive standard care, which was the local major hemorrhage protocol (reviewed for guideline adherence), or cryoprecipitate, in which 3 pools of cryoprecipitate (6-g fibrinogen equivalent) were to be administered in addition to standard care within 90 minutes of randomization and 3 hours of injury. MAIN OUTCOMES AND MEASURES: The primary outcome was all-cause mortality at 28 days in the intention-to-treat population. RESULTS: Among 1604 eligible patients, 799 were randomized to the cryoprecipitate group and 805 to the standard care group. Missing primary outcome data occurred in 73 patients (principally due to withdrawal of consent) and 1531 (95%) were included in the primary analysis population. The median (IQR) age of participants was 39 (26-55) years, 1251 (79%) were men, median (IQR) Injury Severity Score was 29 (18-43), 36% had penetrating injury, and 33% had systolic blood pressure less than 90 mm Hg at hospital arrival. All-cause 28-day mortality in the intention-to-treat population was 26.1% in the standard care group vs 25.3% in the cryoprecipitate group (odds ratio, 0.96 [95% CI, 0.75-1.23]; P = .74). There was no difference in safety outcomes or incidence of thrombotic events in the standard care vs cryoprecipitate group (12.9% vs 12.7%). CONCLUSIONS AND RELEVANCE: Among patients with trauma and bleeding who required activation of a major hemorrhage protocol, the addition of early and empirical high-dose cryoprecipitate to standard care did not improve all cause 28-day mortality. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT04704869; ISRCTN Identifier: ISRCTN14998314

    Platelet factor XIII-A regulates platelet function and promotes clot retraction and stability.

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    Factor XIII (FXIII) is an important proenzyme in the hemostatic system. The plasma-derived enzyme activated FXIII cross-links fibrin fibers within thrombi to increase their mechanical strength and cross-links fibrin to fibrinolytic inhibitors, specifically α2-antiplasmin, to increase resistance to fibrinolysis. We have previously shown that cellular FXIII (factor XIII-A [FXIII-A]), which is abundant in the platelet cytoplasm, is externalized onto the activated membrane and cross-links extracellular substrates. The contribution of cellular FXIII-A to platelet activation and platelet function has not been extensively studied. This study aims to identify the role of platelet FXIII-A in platelet function. We used normal healthy platelets with a cell permeable FXIII inhibitor and platelets from FXIII-deficient patients as a FXIII-free platelet model in a range of platelet function and clotting tests. Our data demonstrate that platelet FXIII-A enhances fibrinogen binding to the platelet surface upon agonist stimulation and improves the binding of platelets to fibrinogen and aggregation under flow in a whole-blood thrombus formation assay. In the absence of FXIII-A, platelets show reduced sensitivity to agonist stimulation, including decreased P-selectin exposure and fibrinogen binding. We show that FXIII-A is involved in platelet spreading where a lack of FXIII-A reduces the ability of platelets to fully spread on fibrinogen and collagen. Our data demonstrate that platelet FXIII-A is important for clot retraction where clots formed in its absence retracted to a lesser extent. Overall, this study shows that platelet FXIII-A functions during thrombus formation by aiding platelet activation and thrombus retraction in addition to its antifibrinolytic roles

    Children must be protected from the tobacco industry's marketing tactics.

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    Machine learning algorithms performed no better than regression models for prognostication in traumatic brain injury

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    Objective: We aimed to explore the added value of common machine learning (ML) algorithms for prediction of outcome for moderate and severe traumatic brain injury. Study Design and Setting: We performed logistic regression (LR), lasso regression, and ridge regression with key baseline predictors in the IMPACT-II database (15 studies, n = 11,022). ML algorithms included support vector machines, random forests, gradient boosting machines, and artificial neural networks and were trained using the same predictors. To assess generalizability of predictions, we performed internal, internal-external, and external validation on the recent CENTER-TBI study (patients with Glasgow Coma Scale <13, n = 1,554). Both calibration (calibration slope/intercept) and discrimination (area under the curve) was quantified. Results: In the IMPACT-II database, 3,332/11,022 (30%) died and 5,233(48%) had unfavorable outcome (Glasgow Outcome Scale less than 4). In the CENTER-TBI study, 348/1,554(29%) died and 651(54%) had unfavorable outcome. Discrimination and calibration varied widely between the studies and less so between the studied algorithms. The mean area under the curve was 0.82 for mortality and 0.77 for unfavorable outcomes in the CENTER-TBI study. Conclusion: ML algorithms may not outperform traditional regression approaches in a low-dimensional setting for outcome prediction after moderate or severe traumatic brain injury. Similar to regression-based prediction models, ML algorithms should be rigorously validated to ensure applicability to new populations
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