| 1. |
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| 2. |
- Alvehus, Johan, et al.
(författare)
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First teachers – stratification in Swedish schools
- 2017
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- This article is about professions in transformation and the empirical case is the teaching profession. More specifically, it is about an attempt to strengthen the profession by introducing a new career step, first teachers (FTs). The aim of the study is to scrutinize what first teachers do and how they establish the position in the school system. Four main categories emerged that most actions could be sorted into: coordinating, policy formulating, knowledge generating and instructing. Most of the activities might be related to the collegial level. We use the term appropriation to capture the fact that the FTs both took over existing and novel tasks. The introduction of first teachers has led to a restratification process which in turn has helped strengthen the professional autonomy at a collegial level. The empirical investigation was carried out in a qualitative longitudinal study.
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| 3. |
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| 4. |
- Alvehus, Johan, et al.
(författare)
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Inhabiting institutions: Shaping the first teacher role in Swedish schools
- 2019
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Ingår i: Journal of professions and organization. - : Oxford University Press (OUP). - 2051-8811 .- 2051-8803. ; 6:1, s. 33-48
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Tidskriftsartikel (refereegranskat)abstract
- This study examines a recent reform in the Swedish teaching profession—the so-called first teacher reform, aimed at increasing teacher professionalism and the status of teachers. The reform created a situation by which a new role had to be created and inhabited by first teachers, appointed on what were considered arbitrary criteria. There were few existing norms, rules, and routines to draw upon for the newly appointed first teachers. The empirical focus of this study, based upon interviews and observations from seven schools in four Swedish municipalities, is how the newly appointed first teachers shape their role in relation to other teachers and to school management. We contribute to inhabited institutions theory by showing how processes of institutional change rely on externalization by relational work, through which the new role gains legitimacy and mutual recognition, and on objectification by jurisdictional work, through which the new role becomes taken for granted in a new division of labour. We thus argue that changes in the material basis of work processes are key to understanding processes of institutional inhabitation. Moreover, we show how changes in intra-professional jurisdictions can lead to upgrading, rather than degradation, of professional work.
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| 5. |
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| 6. |
- Alvehus, Johan, et al.
(författare)
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Organizing Professionalism – New Elites, Stratification and Division of Labor
- 2020
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Ingår i: Public Organization Review. - : Springer Science and Business Media LLC. - 1566-7170 .- 1573-7098. ; 20, s. 163-177
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Tidskriftsartikel (refereegranskat)abstract
- The case in this study is the introduction of a new more prominent position for teachers. The aim is to contribute to the literature on stratification and organizing of professions. This is done by addressing the question how division of labor is affected by enhanced organization of a profession? The paper illustrates how stratification took place and a new division of labor emerged. Not much conflict was observed regarding the new division of labor and it is proposed that this is because the new division of labor did not challenge the dominance over the core domain of teachers or of principals. The increase in organization did not lead to an increase in control of the profession but an increase in control by the profession. In addition, stratification in fact led to a de-hybridization of the roles of teachers and principals.
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| 7. |
- Alvehus, Johan, et al.
(författare)
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To strengthen or to shatter? On the effects of stratification on professions as systems
- 2021
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Ingår i: Public Administration. - : Wiley. - 0033-3298 .- 1467-9299. ; 99:2, s. 371-386
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this article is to contribute to the literature on how stratification affects professions. Our case is the first teacher reform in Sweden, which introduced a more prominent position for some teachers. In this article, we elaborate six different first teacher types and analyze how these affect the profession. While elites are generally described as hybrids, we conclude that several of our types rather led to a de‐hybridization of roles, where managers became more administratively focused, and elites more anchored to professional tasks. We conclude that elite roles expose various potentials in being strengthening/weakening or shattering/integrating to the profession, but, in contrast to other studies on professional elites, the majority of roles studied here are both strengthening and integrating to the profession. The study is qualitative and based on 111 interviews, 12weeks of shadowing and 53 observed meetings.
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| 8. |
- Berndt, Sonja I., et al.
(författare)
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Genome-wide meta-analysis identifies 11 new loci for anthropometric traits and provides insights into genetic architecture
- 2013
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Ingår i: Nature Genetics. - : Springer Science and Business Media LLC. - 1061-4036 .- 1546-1718. ; 45:5, s. 501-U69
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Tidskriftsartikel (refereegranskat)abstract
- Approaches exploiting trait distribution extremes may be used to identify loci associated with common traits, but it is unknown whether these loci are generalizable to the broader population. In a genome-wide search for loci associated with the upper versus the lower 5th percentiles of body mass index, height and waist-to-hip ratio, as well as clinical classes of obesity, including up to 263,407 individuals of European ancestry, we identified 4 new loci (IGFBP4, H6PD, RSRC1 and PPP2R2A) influencing height detected in the distribution tails and 7 new loci (HNF4G, RPTOR, GNAT2, MRPS33P4, ADCY9, HS6ST3 and ZZZ3) for clinical classes of obesity. Further, we find a large overlap in genetic structure and the distribution of variants between traits based on extremes and the general population and little etiological heterogeneity between obesity subgroups.
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| 9. |
- Bousquet, Jean, et al.
(författare)
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Allergic Rhinitis and its Impact on Asthma (ARIA) Phase 4 (2018) : Change management in allergic rhinitis and asthma multimorbidity using mobile technology
- 2019
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Ingår i: Journal of Allergy and Clinical Immunology. - : Elsevier. - 0091-6749 .- 1097-6825. ; 143:3, s. 864-879
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Tidskriftsartikel (refereegranskat)abstract
- Allergic Rhinitis and its Impact on Asthma (ARIA) has evolved from a guideline by using the best approach to integrated care pathways using mobile technology in patients with allergic rhinitis (AR) and asthma multimorbidity. The proposed next phase of ARIA is change management, with the aim of providing an active and healthy life to patients with rhinitis and to those with asthma multimorbidity across the lifecycle irrespective of their sex or socioeconomic status to reduce health and social inequities incurred by the disease. ARIA has followed the 8-step model of Kotter to assess and implement the effect of rhinitis on asthma multimorbidity and to propose multimorbid guidelines. A second change management strategy is proposed by ARIA Phase 4 to increase self-medication and shared decision making in rhinitis and asthma multimorbidity. An innovation of ARIA has been the development and validation of information technology evidence-based tools (Mobile Airways Sentinel Network [MASK]) that can inform patient decisions on the basis of a self-care plan proposed by the health care professional.
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| 10. |
- Byström, Sanna, et al.
(författare)
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Affinity proteomic profiling of plasma for proteins associated to area-based mammographic breast density
- 2018
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Ingår i: Breast Cancer Research. - : BIOMED CENTRAL LTD. - 1465-5411 .- 1465-542X. ; 20
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Tidskriftsartikel (refereegranskat)abstract
- Background: Mammographic breast density is one of the strongest risk factors for breast cancer, but molecular understanding of how breast density relates to cancer risk is less complete. Studies of proteins in blood plasma, possibly associated with mammographic density, are well-suited as these allow large-scale analyses and might shed light on the association between breast cancer and breast density. Methods: Plasma samples from 1329 women in the Swedish KARMA project, without prior history of breast cancer, were profiled with antibody suspension bead array (SBA) assays. Two sample sets comprising 729 and 600 women were screened by two different SBAs targeting a total number of 357 proteins. Protein targets were selected through searching the literature, for either being related to breast cancer or for being linked to the extracellular matrix. Association between proteins and absolute area-based breast density (AD) was assessed by quantile regression, adjusting for age and body mass index (BMI). Results: Plasma profiling revealed linear association between 20 proteins and AD, concordant in the two sets of samples (p < 0.05). Plasma levels of seven proteins were positively associated and 13 proteins negatively associated with AD. For eleven of these proteins evidence for gene expression in breast tissue existed. Among these, ABCC11, TNFRSF10D, F11R and ERRF were positively associated with AD, and SHC1, CFLAR, ACOX2, ITGB6, RASSF1, FANCD2 and IRX5 were negatively associated with AD. Conclusions: Screening proteins in plasma indicates associations between breast density and processes of tissue homeostasis, DNA repair, cancer development and/or progression in breast cancer. Further validation and follow-up studies of the shortlisted protein candidates in independent cohorts will be needed to infer their role in breast density and its progression in premenopausal and postmenopausal women.
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| 11. |
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| 12. |
- Eklund, Sanna, et al.
(författare)
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10-year mortality, causes of death and cardiovascular comorbidities in idiopathic normal pressure hydrocephalus
- 2024
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Ingår i: Journal of Neurology. - : Springer Nature. - 0340-5354 .- 1432-1459. ; 271, s. 1311-1319
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Tidskriftsartikel (refereegranskat)abstract
- Objective: The objective was to investigate 10-year mortality, causes of death and cardiovascular comorbidity in idiopathic normal pressure hydrocephalus (iNPH) and to evaluate their mutual associations.Methods: This prospective cohort study included 176 CSF-shunted iNPH patients, and 368 age- and sex-matched controls. At inclusion, participants were medically examined, had blood analyzed and answered a questionnaire. The vascular comorbidities investigated were smoking, diabetes, body mass index, blood pressure (BP), hyperlipidemia, kidney function, atrial fibrillation and, cerebro- and cardiovascular disease.Results: Survival was observed for a mean period of 10.3 ± 0.84 years. Shunted iNPH patients had an increased risk of death compared to controls (hazard ratio (HR) = 2.5, 95% CI 1.86–3.36; p < 0.001). After 10 years, 50% (n = 88) of iNPH patients and 24% (n = 88) of the controls were dead (p < 0.001). The risk of dying from cardiovascular disease, falls and neurological diseases were higher in iNPH (p < 0.05). The most common cause of death in iNPH was cardiovascular diseases (14% vs 7% for controls). Seven out of nine iNPH dying from falls had subdural hematomas. Systolic BP (HR = 0.985 95% CI 0.972–0.997, p = 0.018), atrial fibrillation (HR = 2.652, 95% CI 1.506–4.872, p < 0.001) and creatinine (HR = 1.018, 95% CI 1.010–1.027, p < 0.001) were independently associated with mortality for iNPH.Discussion: This long-term and population-matched cohort study indicates that in spite of CSF-shunt treatment, iNPH has shorter life expectancy. It may be important to treat iNPH in supplementary ways to reduce mortality. Both cardiovascular comorbidities and lethal falls are contributing to the excess mortality in iNPH and reducing these preventable risks should be an established part of the treatment plan.
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| 13. |
- Eklund, Sanna A., et al.
(författare)
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Vascular risk profiles for predicting outcome and long-term mortality in patients with idiopathic normal pressure hydrocephalus : comparison of clinical decision support tools
- 2023
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Ingår i: Journal of Neurosurgery. - : Journal of Neurosurgery Publishing Group (JNSPG). - 0022-3085 .- 1933-0693. ; 138:2, s. 476-482
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: Vascular risk factors (VRFs) may act synergistically, and clinical decision support tools (CDSTs) have been developed that present vascular risk as a summarized score. Because VRFs are a major issue in patients with idiopathic normal pressure hydrocephalus (INPH), a CDST may be useful in the diagnostic workup. The objective was to compare 4 CDSTs to determine which one most accurately predicts short-term outcome and 10-year mortality after CSF shunt surgery in INPH patients.METHODS: One-hundred forty INPH patients who underwent CSF shunt surgery were included. For each patient, 4 CDST scores (Systematic Coronary Risk Evaluation–Older Persons [SCORE-OP], Framingham Risk Score [FRS], Revised Framingham Stroke Risk Profile, and Kiefer’s Comorbidity Index [KCI]) were estimated. Short-term outcome (3 months after CSF shunt surgery) was defined on the basis of improvements in gait, Mini-Mental State Examination score, and modified Rankin Scale score. The 10-year mortality rate after surgery was noted. The CDSTs were compared by using Cox regression analysis, receiver operating characteristic curve analysis, and the chi-square test.RESULTS: For 3 CDSTs, increased score was associated with increased risk of 10-year mortality. A 1-point increase in the FRS indicated a 2% higher risk of death within 10 years (HR 1.02, 95% CI 1.003–1.035, p = 0.021); SCORE-OP, 5% (HR 1.05, 95% CI 1.019–1.087, p = 0.002); and KCI, 12% (HR 1.12, 95% CI 1.03–1.219, p = 0.008). FRS predicted short-term outcome of surgery (p = 0.024). When the cutoff value was set to 32.5%, the positive predictive value was 80% and the negative predictive value was 48% (p = 0.012).CONCLUSIONS: The authors recommend using FRS to predict short-term outcome and 10-year risk of mortality in INPH patients. The study indicated that extensive treatment of the risk factors of INPH may decrease risk of mortality.
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| 14. |
- Eklund, Sanna A., et al.
(författare)
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Vascular risk profiles for predicting outcome and long-term mortality in patients with idiopathic normal pressure hydrocephalus: comparison of clinical decision support tools
- 2023
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Ingår i: Journal of Neurosurgery. - : AMER ASSOC NEUROLOGICAL SURGEONS. - 0022-3085 .- 1933-0693. ; 138:2, s. 476-482
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE Vascular risk factors (VRFs) may act synergistically, and clinical decision support tools (CDSTs) have been developed that present vascular risk as a summarized score. Because VRFs are a major issue in patients with idiopathic normal pressure hydrocephalus (INPH), a CDST may be useful in the diagnostic workup. The objective was to compare 4 CDSTs to determine which one most accurately predicts short-term outcome and 10-year mortality after CSF shunt surgery in INPH patients. METHODS One-hundred forty INPH patients who underwent CSF shunt surgery were included. For each patient, 4 CDST scores (Systematic Coronary Risk Evaluation-Older Persons [SCORE-OP], Framingham Risk Score [FRS], Revised Framingham Stroke Risk Profile, and Kiefers Comorbidity Index [KCI]) were estimated. Short-term outcome (3 months after CSF shunt surgery) was defined on the basis of improvements in gait, Mini-Mental State Examination score, and modified Rankin Scale score. The 10-year mortality rate after surgery was noted. The CDSTs were compared by using Cox regression analysis, receiver operating characteristic curve analysis, and the chi-square test. RESULTS For 3 CDSTs, increased score was associated with increased risk of 10-year mortality. A 1-point increase in the FRS indicated a 2% higher risk of death within 10 years (HR 1.02, 95% CI 1.003-1.035, p = 0.021); SCORE-OP, 5% (HR 1.05, 95% CI 1.019-1.087, p = 0.002); and KCI, 12% (HR 1.12, 95% CI 1.03-1.219, p = 0.008). FRS predicted short-term outcome of surgery (p = 0.024). When the cutoff value was set to 32.5%, the positive predictive value was 80% and the negative predictive value was 48% (p = 0.012). CONCLUSIONS The authors recommend using FRS to predict short-term outcome and 10-year risk of mortality in INPH patients. The study indicated that extensive treatment of the risk factors of INPH may decrease risk of mortality. Clinical trial registration no.: NCT01850914 (ClinicalTrials.gov)
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| 15. |
- Eklund, Sanna, 1985, et al.
(författare)
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Mellan styrning och autonomi
- 2023
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Bok (övrigt vetenskapligt/konstnärligt)abstract
- Vad innebär det att leda i en offentlig verksamhet i dag? Hur kan chefer och ledare i offentlig sektor hantera spänningen mellan styrning och autonomi? I boken beskrivs vad som traditionellt utmärker offentliga organisationer, såsom den ständigt närvarande politiska styrningen och byråkratiska strukturer. Dessutom diskuteras samtida utvecklingstendenser och förändringar i styrningsideal och styrningsformer som påverkar förutsättningarna för att leda i offentlig verksamhet. Författarna djupdyker i några av dessa styrningsformer och ideal, såsom marknadisering, administrativ kontroll, new public governance, tvärsektoriella krav, tillitsbaserad styrning och tillitsbaserat ledarskap. Vi får ta del av röster från chefer och ledare inom olika delar av den offentliga sektorn som belyser erfarenheter av och förhållningssätt till olika former av styrning samt hur chefer och ledare använder sin autonomi. I centrum för boken står det spänningsfält mellan styrning och autonomi som chefer och ledare i offentlig sektor befinner sig i.
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| 16. |
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| 17. |
- Eklund, Sanna, 1985
(författare)
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New Public Professional Organisationalism Towards new professional, managerial and cliental roles as exemplified in Swedish schools
- 2021
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- This thesis aims to deepen our understanding of public professional organisationalism. Whereas new professionalism is an established concept used to describe changes in the roles of professionals, there is a lack of studies on organisationalism that include the roles of managers and clients. In this thesis, it is argued that new roles for professionals in the studied organisations are accompanied by new roles for managers and clients. To capture this ‘newness’, insights from this thesis are abstracted into the ideal type of New Public Professional Organisationalism (NPPO), which consists of seven components: the interconnectedness of domains, hybridisation of logics, de-hybridisation of tasks, dispersed autonomy, distributed control, co-constructiveness and interrelational trust. NPPO serves as a contrast to how relations between professions, managers and clients are often portrayed in the literature by emphasising harmony rather than conflict between actors. Empirically, this thesis focuses on school organisations in Sweden where first teachers have been introduced. This, it is argued, has led to elite positions for some teachers, which has created a hierarchy in the profession where first teachers are involved in more domains and engaged in managerial work to a larger extent. In this thesis, such stratification is considered to have intensified a movement where professional, cliental and managerial roles are evolving. The thesis is part of a larger research project studying the “first teacher reform” and consists of a compilation of the introductory chapter and four published papers. The first paper addresses how the introduction of elites affects the division of labour. The second paper centres on how first teachers inhabit their new role and highlights their agency in shaping this role in relation to their managers and colleagues. The third paper elaborates on various first teacher types and outlines how these affect the teaching profession from a wider perspective. The fourth paper investigates the role of first teachers in strengthening professional control vis-à-vis clients. Since first teachers are connected to different domains within their organisations, the relationships between professionals, managers and clients can be illuminated by focusing on this group. Based on the findings of the aforementioned papers this thesis concludes that professional, managerial and cliental roles generally became more intertwined, which is an observation that has not been coherently captured in the existing literature and motivates the creation of NPPO. The thesis uses a qualitative approach and is based on in-depth studies of seven different schools in three municipalities in Sweden. The research techniques used include interviews, observations and shadowing.
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| 18. |
- Eklund, Sanna, 1985
(författare)
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To co-opt or to be co-opted? The role of professional elites in strengthening professional control vis-à-vis clients
- 2021
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Ingår i: Professions and Professionalism. - : OsloMet - Oslo Metropolitan University. - 1893-1049. ; 11:1
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Tidskriftsartikel (refereegranskat)abstract
- This article studies how professional elites, as exemplified by first teachers (FTs)—a new prominent position for teachers in Sweden—respond to clashes between market and professional logics, and how this affects professional control vis-à-vis clients. Based on a collaborative ethnography, findings suggest that the professional elites use different responses to the clashes between the logics. Professional control can be strengthened by FTs co-opting the market logic strategically in the interest of the profession. However, FTs sometimes also succumb to cliental influence, becoming co-opted themselves by the market logic, which weakens professional control. Tentatively, context needs to be highlighted in order to understand why different responses are used, and in this identity work and relationships to managers seem essential to create a foundation for FTs to respond in ways that increase professional control vis-à-vis clients. © 2021 the authors.
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| 19. |
- Hellström Schmidt, Sanna, et al.
(författare)
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Overuse of EEG and ECG in children with breath-holding spells and its implication for the management of the spells
- 2024
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Ingår i: Acta Pædiatrica. - 1651-2227. ; 113:2, s. 317-326
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Tidskriftsartikel (refereegranskat)abstract
- AIM: Breath-holding spells (BHS) are common in children, but evidence-based clinical guidelines are lacking. We investigated a large population-based cohort of BHS patients, to propose a refined description of typical BHS and guidelines for its management.METHODS: In a cross-sectional retrospective study, patients diagnosed with BHS in Southern Sweden 2004-2018 were recruited. Disease characteristics and diagnostic data were collected from patient medical records.RESULTS: In total, 519 patients, mean age at diagnosis 19.8 ± 13.8 months with equal gender distribution, were included. In 48.3%, BHS had already been diagnosed after one spell. During spells, 78.0% of patients were unresponsive. For 71.5%, atonic, tonic, tonic-clonic or myoclonic seizures were reported, and 78.0% of patients had a spell lasting less than 1 min. Electroencephalography was conducted in 30.4% and Electroencephalography in 45.1%. Six children (3.8%) had a pathological electroencephalogram, four of which had concomitant epilepsy and only 0.9% of children had electrocardiogram findings suggesting pathology, none showing long QT syndrome.CONCLUSION: Children with BHS were frequently subjected to unnecessary diagnostic interventions. We characterise a typical presentation of BHS and propose a management-algorithm, which is expected to reduce unnecessary usage of electroencephalography and electroencephalography.
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| 20. |
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| 21. |
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| 22. |
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| 23. |
- Locke, Adam E, et al.
(författare)
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Genetic studies of body mass index yield new insights for obesity biology.
- 2015
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Ingår i: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 518:7538, s. 197-401
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Tidskriftsartikel (refereegranskat)abstract
- Obesity is heritable and predisposes to many diseases. To understand the genetic basis of obesity better, here we conduct a genome-wide association study and Metabochip meta-analysis of body mass index (BMI), a measure commonly used to define obesity and assess adiposity, in up to 339,224 individuals. This analysis identifies 97 BMI-associated loci (P < 5 × 10(-8)), 56 of which are novel. Five loci demonstrate clear evidence of several independent association signals, and many loci have significant effects on other metabolic phenotypes. The 97 loci account for ∼2.7% of BMI variation, and genome-wide estimates suggest that common variation accounts for >20% of BMI variation. Pathway analyses provide strong support for a role of the central nervous system in obesity susceptibility and implicate new genes and pathways, including those related to synaptic function, glutamate signalling, insulin secretion/action, energy metabolism, lipid biology and adipogenesis.
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| 24. |
- Lu, Yingchang, et al.
(författare)
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New loci for body fat percentage reveal link between adiposity and cardiometabolic disease risk
- 2016
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Ingår i: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 7
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Tidskriftsartikel (refereegranskat)abstract
- To increase our understanding of the genetic basis of adiposity and its links to cardiometabolic disease risk, we conducted a genome-wide association meta-analysis of body fat percentage (BF%) in up to 100,716 individuals. Twelve loci reached genome-wide significance (P<5 × 10(-8)), of which eight were previously associated with increased overall adiposity (BMI, BF%) and four (in or near COBLL1/GRB14, IGF2BP1, PLA2G6, CRTC1) were novel associations with BF%. Seven loci showed a larger effect on BF% than on BMI, suggestive of a primary association with adiposity, while five loci showed larger effects on BMI than on BF%, suggesting association with both fat and lean mass. In particular, the loci more strongly associated with BF% showed distinct cross-phenotype association signatures with a range of cardiometabolic traits revealing new insights in the link between adiposity and disease risk.
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| 25. |
- Menditto, Enrica, et al.
(författare)
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Adherence to treatment in allergic rhinitis using mobile technology : The MASK Study
- 2019
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Ingår i: Clinical and Experimental Allergy. - : WILEY. - 0954-7894 .- 1365-2222. ; 49:4, s. 442-460
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Tidskriftsartikel (refereegranskat)abstract
- Background: Mobile technology may help to better understand the adherence to treatment. MASK-rhinitis (Mobile Airways Sentinel NetworK for allergic rhinitis) is a patient-centred ICT system. A mobile phone app (the Allergy Diary) central to MASK is available in 22 countries. Objectives: To assess the adherence to treatment in allergic rhinitis patients using the Allergy Diary App. Methods: An observational cross-sectional study was carried out on all users who filled in the Allergy Diary from 1 January 2016 to 1 August 2017. Secondary adherence was assessed by using the modified Medication Possession Ratio (MPR) and the Proportion of days covered (PDC) approach. Results: A total of 12143 users were registered. A total of 6949 users reported at least one VAS data recording. Among them, 1887 users reported >= 7 VAS data. About 1195 subjects were included in the analysis of adherence. One hundred and thirty-six (11.28%) users were adherent (MPR >= 70% and PDC <= 1.25), 51 (4.23%) were partly adherent (MPR >= 70% and PDC = 1.50) and 176 (14.60%) were switchers. On the other hand, 832 (69.05%) users were non-adherent to medications (MPR <70%). Of those, the largest group was non-adherent to medications and the time interval was increased in 442 (36.68%) users. Conclusion and clinical relevance: Adherence to treatment is low. The relative efficacy of continuous vs on-demand treatment for allergic rhinitis symptoms is still a matter of debate. This study shows an approach for measuring retrospective adherence based on a mobile app. This also represents a novel approach for analysing medication-taking behaviour in a real-world setting.
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| 26. |
- Ried, Janina S., et al.
(författare)
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A principal component meta-analysis on multiple anthropometric traits identifies novel loci for body shape
- 2016
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Ingår i: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 7
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Tidskriftsartikel (refereegranskat)abstract
- Large consortia have revealed hundreds of genetic loci associated with anthropometric traits, one trait at a time. We examined whether genetic variants affect body shape as a composite phenotype that is represented by a combination of anthropometric traits. We developed an approach that calculates averaged PCs (AvPCs) representing body shape derived from six anthropometric traits (body mass index, height, weight, waist and hip circumference, waist-to-hip ratio). The first four AvPCs explain >99% of the variability, are heritable, and associate with cardiometabolic outcomes. We performed genome-wide association analyses for each body shape composite phenotype across 65 studies and meta-analysed summary statistics. We identify six novel loci: LEMD2 and CD47 for AvPC1, RPS6KA5/C14orf159 and GANAB for AvPC3, and ARL15 and ANP32 for AvPC4. Our findings highlight the value of using multiple traits to define complex phenotypes for discovery, which are not captured by single-trait analyses, and may shed light onto new pathways.
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| 27. |
- Shungin, Dmitry, et al.
(författare)
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New genetic loci link adipose and insulin biology to body fat distribution.
- 2015
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Ingår i: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 518:7538, s. 187-378
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Tidskriftsartikel (refereegranskat)abstract
- Body fat distribution is a heritable trait and a well-established predictor of adverse metabolic outcomes, independent of overall adiposity. To increase our understanding of the genetic basis of body fat distribution and its molecular links to cardiometabolic traits, here we conduct genome-wide association meta-analyses of traits related to waist and hip circumferences in up to 224,459 individuals. We identify 49 loci (33 new) associated with waist-to-hip ratio adjusted for body mass index (BMI), and an additional 19 loci newly associated with related waist and hip circumference measures (P < 5 × 10(-8)). In total, 20 of the 49 waist-to-hip ratio adjusted for BMI loci show significant sexual dimorphism, 19 of which display a stronger effect in women. The identified loci were enriched for genes expressed in adipose tissue and for putative regulatory elements in adipocytes. Pathway analyses implicated adipogenesis, angiogenesis, transcriptional regulation and insulin resistance as processes affecting fat distribution, providing insight into potential pathophysiological mechanisms.
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| 28. |
- Sousa-Pinto, Bernardo, et al.
(författare)
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Comparison of rhinitis treatments using MASK-air® data and considering the minimal important difference
- 2022
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Ingår i: Allergy. European Journal of Allergy and Clinical Immunology. - : John Wiley & Sons. - 0105-4538 .- 1398-9995. ; 77:10, s. 3002-3014
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Tidskriftsartikel (refereegranskat)abstract
- Background: Different treatments exist for allergic rhinitis (AR), including pharmacotherapy and allergen immunotherapy (AIT), but they have not been compared using direct patient data (i.e., “real-world data”). We aimed to compare AR pharmacological treatments on (i) daily symptoms, (ii) frequency of use in co-medication, (iii) visual analogue scales (VASs) on allergy symptom control considering the minimal important difference (MID) and (iv) the effect of AIT.Methods: We assessed the MASK-air® app data (May 2015–December 2020) by users self-reporting AR (16–90 years). We compared eight AR medication schemes on reported VAS of allergy symptoms, clustering data by the patient and controlling for confounding factors. We compared (i) allergy symptoms between patients with and without AIT and (ii) different drug classes used in co-medication.Results: We analysed 269,837 days from 10,860 users. Most days (52.7%) involved medication use. Median VAS levels were significantly higher in co-medication than in monotherapy (including the fixed combination azelastine-fluticasone) schemes. In adjusted models, azelastine-fluticasone was associated with lower average VAS global allergy symptoms than all other medication schemes, while the contrary was observed for oral corticosteroids. AIT was associated with a decrease in allergy symptoms in some medication schemes. A difference larger than the MID compared to no treatment was observed for oral steroids. Azelastine-fluticasone was the drug class with the lowest chance of being used in co-medication (adjusted OR = 0.75; 95% CI = 0.71–0.80).Conclusion: Median VAS levels were higher in co-medication than in monotherapy. Patients with more severe symptoms report a higher treatment, which is currently not reflected in guidelines.
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| 29. |
- Sousa-Pinto, Bernardo, et al.
(författare)
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Consistent trajectories of rhinitis control and treatment in 16,177 weeks : the MASK-air® longitudinal study
- 2023
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Ingår i: Allergy. European Journal of Allergy and Clinical Immunology. - : John Wiley & Sons. - 0105-4538 .- 1398-9995. ; 78:4, s. 968-983
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Tidskriftsartikel (refereegranskat)abstract
- Introduction: Data from mHealth apps can provide valuable information on rhinitis control and treatment patterns. However, in MASK-air®, these data have only been analyzed cross-sectionally, without considering the changes of symptoms over time. We analyzed data from MASK-air® longitudinally, clustering weeks according to reported rhinitis symptoms. Methods: We analyzed MASK-air® data, assessing the weeks for which patients had answered a rhinitis daily questionnaire on all 7 days. We firstly used k-means clustering algorithms for longitudinal data to define clusters of weeks according to the trajectories of reported daily rhinitis symptoms. Clustering was applied separately for weeks when medication was reported or not. We compared obtained clusters on symptoms and rhinitis medication patterns. We then used the latent class mixture model to assess the robustness of results. Results: We analyzed 113,239 days (16,177 complete weeks) from 2590 patients (mean age ± SD = 39.1 ± 13.7 years). The first clustering algorithm identified ten clusters among weeks with medication use: seven with low variability in rhinitis control during the week and three with highly-variable control. Clusters with poorly-controlled rhinitis displayed a higher frequency of rhinitis co-medication, a more frequent change of medication schemes and more pronounced seasonal patterns. Six clusters were identified in weeks when no rhinitis medication was used, displaying similar control patterns. The second clustering method provided similar results. Moreover, patients displayed consistent levels of rhinitis control, reporting several weeks with similar levels of control. Conclusions: We identified 16 patterns of weekly rhinitis control. Co-medication and medication change schemes were common in uncontrolled weeks, reinforcing the hypothesis that patients treat themselves according to their symptoms.
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| 30. |
- Sousa-Pinto, Bernardo, et al.
(författare)
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Development and validation of combined symptom-medication scores for allergic rhinitis*
- 2022
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Ingår i: Allergy. European Journal of Allergy and Clinical Immunology. - : John Wiley & Sons. - 0105-4538 .- 1398-9995. ; 77:7, s. 2147-2162
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Tidskriftsartikel (refereegranskat)abstract
- Background: Validated combined symptom-medication scores (CSMSs) are needed to investigate the effects of allergic rhinitis treatments. This study aimed to use real-life data from the MASK-air® app to generate and validate hypothesis- and data-driven CSMSs.Methods: We used MASK-air® data to assess the concurrent validity, test-retest reliability and responsiveness of one hypothesis-driven CSMS (modified CSMS: mCSMS), one mixed hypothesis- and data-driven score (mixed score), and several data-driven CSMSs. The latter were generated with MASK-air® data following cluster analysis and regression models or factor analysis. These CSMSs were compared with scales measuring (i) the impact of rhinitis on work productivity (visual analogue scale [VAS] of work of MASK-air®, and Work Productivity and Activity Impairment: Allergy Specific [WPAI-AS]), (ii) quality-of-life (EQ-5D VAS) and (iii) control of allergic diseases (Control of Allergic Rhinitis and Asthma Test [CARAT]).Results: We assessed 317,176 days of MASK-air® use from 17,780 users aged 16-90 years, in 25 countries. The mCSMS and the factor analyses-based CSMSs displayed poorer validity and responsiveness compared to the remaining CSMSs. The latter displayed moderate-to-strong correlations with the tested comparators, high test-retest reliability and moderate-to-large responsiveness. Among data-driven CSMSs, a better performance was observed for cluster analyses-based CSMSs. High accuracy (capacity of discriminating different levels of rhinitis control) was observed for the latter (AUC-ROC = 0.904) and for the mixed CSMS (AUC-ROC = 0.820).Conclusion: The mixed CSMS and the cluster-based CSMSs presented medium-high validity, reliability and accuracy, rendering them as candidates for primary endpoints in future rhinitis trials.
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| 31. |
- Sousa-Pinto, Bernardo, et al.
(författare)
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Validity, reliability, and responsiveness of daily monitoring visual analog scales in MASK-air®
- 2021
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Ingår i: Clinical and Translational Allergy. - : John Wiley & Sons. - 2045-7022. ; 11:7
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Forskningsöversikt (refereegranskat)abstract
- Background: MASK-air® is an app that supports allergic rhinitis patients in disease control. Users register daily allergy symptoms and their impact on activities using visual analog scales (VASs). We aimed to assess the concurrent validity, reliability, and responsiveness of these daily VASs.Methods: Daily monitoring VAS data were assessed in MASK-air® users with allergic rhinitis. Concurrent validity was assessed by correlating daily VAS values with those of the EuroQol-5 Dimensions (EQ-5D) VAS, the Control of Allergic Rhinitis and Asthma Test (CARAT) score, and the Work Productivity and Activity Impairment Allergic Specific (WPAI-AS) Questionnaire (work and activity impairment scores). Intra-rater reliability was assessed in users providing multiple daily VASs within the same day. Test–retest reliability was tested in clinically stable users, as defined by the EQ-5D VAS, CARAT, or “VAS Work” (i.e., VAS assessing the impact of allergy on work). Responsiveness was determined in users with two consecutive measurements of EQ-5D-VAS or “VAS Work” indicating clinical change.Results: A total of 17,780 MASK-air® users, with 317,176 VAS days, were assessed. Concurrent validity was moderate–high (Spearman correlation coefficient range: 0.437–0.716). Intra-rater reliability intraclass correlation coefficients (ICCs) ranged between 0.870 (VAS assessing global allergy symptoms) and 0.937 (VAS assessing allergy symptoms on sleep). Test–retest reliability ICCs ranged between 0.604 and 0.878—“VAS Work” and “VAS asthma” presented the highest ICCs. Moderate/large responsiveness effect sizes were observed—the sleep VAS was associated with lower responsiveness, while the global allergy symptoms VAS demonstrated higher responsiveness.Conclusion: In MASK-air®, daily monitoring VASs have high intra-rater reliability and moderate–high validity, reliability, and responsiveness, pointing to a reliable measure of symptom loads.
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