14 results on '"J. Van Eijk"'
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2. Atmospheric Sea Spray Modeling in the North-East Atlantic Ocean using Tunnel-Derived Generation Functions and the SUMOS Cruise Dataset
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WIlliam Bruch, W Bruch, C Yohia, P Tulet, A Limoges, P Sutherland, A M J van Eijk, T Missamou, and J Piazzola
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air-sea interaction ,field campaigns ,atmospheric modelling ,sea spray - Abstract
This study contributes to the communal effort to improve understanding of sea spray generation and transport. For the first time, laboratory-derived sea spray generation functions (SSGFs) are parameterized in the Meso-NH mesoscale atmospheric model and are field tested. Formulated from the MATE19 laboratory experiments (Bruch et al., 2021) two SSGFs are driven by the upwind component of the wave-slope variance S2x (herein B21A), or both S2x and the wind friction velocity cubed u3* (herein B21B). As part of our first attempt to incorporate the SSGFs in Meso-NH, the simulations are run without a wave model, and the wave-wind SSGFs are assumed wind-dependent. Model evaluation is achieved with sea spray and meteorological measurements acquired over the 0.1-22.75 µm radius range and 1-20 m s-1 U10 wind speeds, 15 meters above the sea surface onboard R/V Atalante during the 25 day SUMOS field campaign in the Bay of Biscay. The B21B SSGF offers particularly good sensitivity to a wide range of environmental conditions over the size range, with an average overestimation by a factor 1.5 compared with measurements, well below the deviations reported elsewhere. B21A also performs well for larger droplets at wind speeds above 15 m s-1. Associated with airflow separation and wave breaking, the wave-slope variance proves to be a key parameter for the scaling of sea spray generation. Using model outputs obtained with B21B, sea spray can be found far beyond the marine atmospheric boundary layer, with large plumes reaching 100 km inland and altitudes of 2.5 km. Plain Language Summary The effects of sea spray on weather and climate remain poorly understood as a result of sparse measurements and large uncertainties in the generation flux. With the aim of improving sea spray transport in atmospheric models, two sea spray generation functions derived from the MATE19 laboratory campaign are parameterized in the Meso-NH mesoscale atmospheric model. The simulations are run over the Bay of Biscay in February-March 2021, and are compared with sea spray concentrations measured during the SUMOS field campaign. Results show that the laboratory-derived generation functions allow accurate predictions of sea spray concentrations. Furthermore, simulations show that sea spray droplets can be transported far over land, and high into the atmosphere.
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- 2023
3. Reflection measurements in TNO’s 30 kW laser facility
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Denise Meuken, Sven A. Van Binsbergen, Loes Scheers, Peter van den Berg, and Alexander M. J. van Eijk
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- 2022
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4. Laser propagation measurements over a multi-km path in a maritime environment
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Sven A. van Binsbergen, Peter J. van den Berg, Loes C. W. Scheers, Jari Blom, Erik Sucher, Alexander M. J. van Eijk, and Karin Stein
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- 2022
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5. Low-altitude laser propagation link over a marine surface
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Sven van Binsbergen, Peter van den Berg, Loes Scheers, Jari Blom, Erik Sucher, and Alexander M. J. van Eijk
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- 2022
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6. Which heart failure patients benefit most from non-invasive telemedicine? An overview of current evidence and future directions.
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van Eijk J, Luijken K, Trappenburg J, Jaarsma T, and Asselbergs FW
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Telemedicine in heart failure (HF) management may positively impact health outcomes, but varied effects in studies hinder guidance in HF guidelines. Evidence on the effectiveness of telemedicine in HF subpopulations is limited. We conducted a scoping review to evaluate and synthesise evidence on the effectiveness of telemedicine across HF subpopulations that could guide telemedicine strategies in routine practice. Meta-analyses concerning randomised controlled trials (RCTs) with subgroup analyses on telemedicine effectives were identified in PubMed. We identified 15 RCTs, encompassing 21 different subgroups based on characteristics of HF patients. Findings varied across studies and no definite evidence was found about which patients benefit most from telemedicine. Subgroup definitions were inconsistent, not always a priori defined and subgroups contained few patients. Some studies found heterogeneous effects of telemedicine on mortality and hospitalisation across subgroups defined by: New York Heart Association (NYHA) classification, previous HF decompensation, implantable device, concurrent depression, time since hospital discharge and duration of HF. Patients represented in the RCTs were mostly male, aged 65-75 years, with HF with reduced ejection fraction and NYHA class II/III. Traditional RCTs have not been able to provide clinicians with guidance; continuous real-world evidence generation could enhance monitoring and identify who benefits from telemedicine., (© 2024. The Author(s).)
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- 2024
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7. Integrating telemedicine in routine heart failure management: Experiences of healthcare professionals - A qualitative study.
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van Eijk J, Trappenburg J, Asselbergs FW, and Jaarsma T
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Objective: To describe the experiences of healthcare professionals with integrating telemedicine in routine heart failure (HF) care., Methods: Semi-structured interviews were conducted with healthcare professionals ( n = 19) in the Netherlands who were involved in decision-making, implementation or routine use of telemedicine in HF management. Using purposive sampling, nurses, cardiologists and managers were selected to be interviewed. Interviews were performed in-person, recorded and transcribed verbatim. Interview data were analysed using a reflexive thematic analysis., Results: This study identified four themes: (1) Responsibility - the lack of a clear delineation of roles and responsibilities among healthcare professionals, patients and suppliers in telemedicine. (2) Confidence and safety - telemedicine is seen by healthcare professionals as capable of enhancing safety, yet also introduces the risk of fostering a false sense of security among patients. (3) Collaboration - actively involving end-users in the development and implementation of telemedicine promotes the adoption. (4) Processes and mutual agreements - rather than replacing traditional care, telemedicine is perceived as an adjunct to it. Structured care pathways support telemedicine implementation, and personalised telemedicine can empower patients in self-care., Conclusions: Telemedicine is a promising intervention in the management of HF. However, existing systems and care pathways have resulted in limited adoption. Improvements in the collaboration and establishing clear agreements on responsibilities between professional, patient and supplier can lead to more confidence in adopting telemedicine. Structured care pathways can be supportive. A personalised telemedicine approach can ensure that telemedicine remains manageable for patient and professional., Competing Interests: The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article., (© The Author(s) 2024.)
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- 2024
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8. Clinical determinants and biomarkers associated with cardiac fibrosis after heart transplantation as assessed by magnetic resonance: Size matters.
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Vorlat A, van Eijk J, Wiersma S, Smid L, Depooter S, Paelinck B, Guerti K, Peeters B, Sturkenboom N, Van Craenenbroeck E, Heidbuchel H, and Van De Heyning C
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Background: Cardiac fibrosis is increasingly recognized as a marker of worse outcomes in long-term follow-up after heart transplantation (HTX). We investigated the clinical determinants and biomarkers of focal and interstitial cardiac fibrosis as assessed with cardiac magnetic resonance (CMR)., Methods: Consecutive HTX recipients underwent CMR with late gadolinium enhancement for focal myocardial fibrosis and T1 mapping for interstitial fibrosis. We calculated the correlations of these findings with clinical parameters, history, biomarkers of fibrosis (B-type natriuretic peptide (BNP), growth differentiation factor-15, galectin-3 and soluble ligand ST2) and echocardiography., Results: Forty-eight HTX patients were included: median age 63 ± 13 years, 11 ± 6 years after heart transplantation. Only donor weight (p 0.044) and the rate of a > 30 % mismatch between donor and recipient weight (p 0.02) were significantly different in patients with vs. without late LGE. Extracellular volume (ECV) was correlated with the weight mismatch between donor and recipient (r = 0.32, p 0.04), resulting in a higher ECV for oversized donors. BNP was the only biomarker of the four studied that was correlated with interstitial fibrosis as assessed by ECV (r = 0.35, p 0.04). T1 relaxation time was correlated with treated acute cellular rejection grade ≥ 2 (ISHLT grading) (r = 0.34, p 0.02)., Conclusion: Both focal and interstitial fibrosis, as determined by CMR, after heart transplantation are correlated with donor and recipient weight mismatch. BNP was the only biomarker clinically relevant to interstitial cardiac fibrosis., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2024 The Author(s).)
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- 2024
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9. RELEASE-HF study: a protocol for an observational, registry-based study on the effectiveness of telemedicine in heart failure in the Netherlands.
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van Eijk J, Luijken K, Jaarsma T, Reitsma JB, Schuit E, Frederix GWJ, Derks L, Schaap J, Rutten FH, Brugts J, de Boer RA, Asselbergs FW, and Trappenburg JCA
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- Humans, Cohort Studies, Netherlands, Registries, Observational Studies as Topic, Heart Failure, Telemedicine methods
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Introduction: Meta-analyses show postive effects of telemedicine in heart failure (HF) management on hospitalisation, mortality and costs. However, these effects are heterogeneous due to variation in the included HF population, the telemedicine components and the quality of the comparator usual care. Still, telemedicine is gaining acceptance in HF management. The current nationwide study aims to identify (1) in which subgroup(s) of patients with HF telemedicine is (cost-)effective and (2) which components of telemedicine are most (cost-)effective., Methods and Analysis: The RELEASE-HF ('REsponsible roLl-out of E-heAlth through Systematic Evaluation - Heart Failure') study is a multicentre, observational, registry-based cohort study that plans to enrol 6480 patients with HF using data from the HF registry facilitated by the Netherlands Heart Registration. Collected data include patient characteristics, treatment information and clinical outcomes, and are measured at HF diagnosis and at 6 and 12 months afterwards. The components of telemedicine are described at the hospital level based on closed-ended interviews with clinicians and at the patient level based on additional data extracted from electronic health records and telemedicine-generated data. The costs of telemedicine are calculated using registration data and interviews with clinicians and finance department staff. To overcome missing data, additional national databases will be linked to the HF registry if feasible. Heterogeneity of the effects of offering telemedicine compared with not offering on days alive without unplanned hospitalisations in 1 year is assessed across predefined patient characteristics using exploratory stratified analyses. The effects of telemedicine components are assessed by fitting separate models for component contrasts., Ethics and Dissemination: The study has been approved by the Medical Ethics Committee 2021 of the University Medical Center Utrecht (the Netherlands). Results will be published in peer-reviewed journals and presented at (inter)national conferences. Effective telemedicine scenarios will be proposed among hospitals throughout the country and abroad, if applicable and feasible., Trial Registration Number: NCT05654961., Competing Interests: Competing interests: JB received an independent research grant from Abbott for ISS paid to institution, and has had speaker engagements or advisory boards for AstraZeneca, Abbott, Bayer, Boehringer, Daiichi Sankyo, Novartis and Vifor in the past 5 years. RAdB has received research grants and/or fees from AstraZeneca, Abbott, Boehringer Ingelheim, Cardior Pharmaceuticals, Ionis Pharmaceuticals, Novo Nordisk and Roche, and has had speaker engagements with Abbott, AstraZeneca, Bayer, Bristol Myers Squibb, Novartis and Roche. CJWB has received speaker fees from AstraZeneca, Boehringer Ingelheim and Novartis. MLH is supported by the Dutch Heart Foundation (Dr E Dekker Senior Clinical Scientist Grant 2020T058) and CVON (2020B008 RECONNEXT). He received an investigator-initiated research grant from Vifor Pharma, an educational grant from Boehringer Ingelheim and Novartis, and speaker/consultancy fees from Abbott, AstraZeneca, Bayer, Boehringer Ingelheim, MSD, Novartis, Sankyo, Daiichi, Quinn and Vifor Pharma, all of which were not related to this study., (© Author(s) (or their employer(s)) 2024. Re-use permitted under CC BY. Published by BMJ.)
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- 2024
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10. A Process Evaluation of an Antibiotic Stewardship Intervention for Urinary Tract Infections in Nursing Homes.
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Rutten JJS, Smalbrugge M, van Buul LW, van Eijk J, Geerlings SE, Natsch S, Sloane PD, van der Wouden JC, Hertogh CMPM, and Gerritsen DL
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- Humans, Anti-Bacterial Agents therapeutic use, Dementia drug therapy, Nursing Homes, Urinary Incontinence, Randomized Controlled Trials as Topic, Antimicrobial Stewardship, Urinary Tract Infections drug therapy, Urinary Tract Infections diagnosis
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Objectives: To assess the internal and external validity of a cluster randomized controlled trial (cRCT) evaluating a decision tool with supportive interventions for the empirical treatment of urinary tract infections (UTIs) in nursing homes (NHs), and to identify facilitators and barriers in implementing this antibiotic stewardship intervention., Design: Mixed-methods process evaluation study., Setting and Participants: Physicians, nursing staff, client council members, and residents of Dutch NHs., Methods: We used cRCT data of the ANNA study (Antibiotic Prescribing and Non-prescribing in Nursing Home Residents With Signs and Symptoms Ascribed to Urinary Tract Infection). In addition, we sent out an online evaluation questionnaire, conducted semistructured interviews with physicians and nursing staff, and consulted client council members., Results: Internal validity was lowered: control group physicians participated in several non-study-related activities regarding UTI. External validity was good: almost all intervention components had a high fidelity (52%-74%) and were perceived as relevant (physicians: 7.2-8.6 of 10, nursing staff: 6.5-8.5 of 10) and feasible (physicians: 7.5 of 10, nursing staff 6.4 of 10), with feasibility for residents with dementia and urine incontinence needing attention. The most common reason for deviating from the advice generated by the decision tool was an unclear illness presentation. Identified facilitators to implementation were confidence in the intervention, repeated intervention encounter, and having "champions" in the NH. Barriers were limited involvement of nursing staff, unstable nursing teams, residents' and representatives' belief that antibiotics should be prescribed, and a low antibiotic prescribing threshold within the NH culture., Conclusions and Implications: Lowered internal validity may have reduced the study effect. Attention should be paid to the feasibility of the intervention in residents with dementia and urinary incontinence. Improvement opportunities for implementation were higher nursing staff involvement and repeated intervention offering., Competing Interests: Disclosure SG reports participation in an advisory board concerning intravenous administration of temocillin in 2019. The other authors have no competing interests to disclose., (Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.)
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- 2024
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11. Observation of urinary tract infection signs and symptoms in nursing home residents with impaired awareness or ability to communicate signs and symptoms: The development of supportive tools.
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van Eijk J, Rutten JJS, Hertogh CMPM, Smalbrugge M, and van Buul LW
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- Humans, Nursing Homes, Anti-Bacterial Agents therapeutic use, Urinary Tract Infections diagnosis, Urinary Tract Infections drug therapy, Dementia diagnosis, Dementia drug therapy, Nursing Staff
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Background: Antibiotics are often inappropriately prescribed for urinary tract infections (UTIs) in nursing home (NH) residents. Research emphasises the importance of prescribing antibiotics only if there are UTI-related signs and symptoms (S&S). However, for many NH residents it is challenging to find out whether such S&S are present, for example due to cognitive disorders., Objectives: To provide insight into the assessment of UTI-related S&S in NH residents with impaired awareness or ability to communicate S&S, and to develop supportive tools for the observation of UTI-related S&S in this subgroup of NH residents, by nursing staff., Methods: We performed a practice-based study using mixed methods. Data of 295 cases of suspected UTI were analysed to determine how often UTI-related S&S were 'not assessed/non-assessable' in residents with and without dementia. Barriers and facilitators in observing UTI-related S&S in NH residents with impaired awareness or ability to communicate S&S were derived from interviews and focus groups with nursing staff. Literature review, focus group data, additional telephone interviews and questionnaires with nursing staff were used in a step-by-step process, including pilot testing, to develop supportive tools for the observation of UTI-related S&S., Results: UTI-related S&S were assessable in the majority of NH residents with dementia. The proportion 'not assessed/non-assessable' S&S in residents with dementia increased with increasing severity of dementia. In residents with very severe dementia, up to 58% of the S&S were 'not assessed/non-assessable'. Knowing the resident, working methodologically, and being sufficiently skilled to interpret observations in residents facilitate the assessment of UTI-related S&S. Insights acquired during the different study elements resulted in the development of an observation checklist and a 24-h observation tool., Conclusions: The more NH residents have impaired awareness of ability to communicate S&S, the more difficult it seems to be to assess UTI-related S&S. The observation checklist and 24-h observation tool developed in the current study may support nursing staff in their observation of UTI-related S&S in this group of NH residents., (© 2023 The Authors. International Journal of Older People Nursing published by John Wiley & Sons Ltd.)
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- 2023
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12. Personality traits are not associated with changes in employment status over 3 years in persons with multiple sclerosis.
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van der Hiele K, van Egmond E, van Gorp D, Jongen PJ, Reneman MF, van der Klink J, Beenakker E, van Eijk J, Frequin S, Hoitsma E, Gerlach O, Mostert JP, Verhagen W, Heerings M, Middelkoop H, and Visser LH
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Previous research discovered a protective effect of higher conscientiousness against a 3-year deterioration in employment status in persons with multiple sclerosis (pwMS). To replicate these findings, we used data from a multicentre prospective cohort study where 145 employed pwMS completed questionnaires, neurological and neuropsychological examinations at baseline and after 3 years. A 3-year deterioration in employment status was reported in 31.0%. We observed no differences in personality, demographics or clinical characteristics between pwMS with deteriorated or stable employment status. These null findings may be partly explained by the classification of deteriorated employment status, which does not reflect Dutch labour conditions., Competing Interests: The author(s) declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: PJJ received honoraria from Bayer Netherlands and Orikami Personalized Health Care, the Netherlands, for consultancy activities and is chairman of the MSmonitor foundation, the Netherlands. JJJvE received honoraria for lectures and honoraria for advisory boards from Sanofi Genzyme, Roche, Merck Serono, Novartis. STFMF received honoraria for lectures, grants for research and honoraria for advisory boards from Sanofi Genzyme, Merck Serono, Novartis, Biogen. EH received honoraria for lectures and advisory boards, and grants for research from Bayer, Biogen, Roche, Sanofi Genzyme, Merck Serono, Novartis. WIMV received honoraria for lectures from Biogen and Merck Serono, reimbursement for hospitality from Biogen, Sanofi Genzyme and Merck Serono, and honoraria for advisory boards from Merck Serono. LHV received honoraria for lectures and honoraria for advisory boards from Merck Serono and Novartis., (© The Author(s), 2022.)
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- 2022
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13. Factors Influencing Nurses' Behavior in Nutritional Care for Community-Dwelling Older Adults Before, During, and After Hospitalization: A Delphi Study.
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Ten Cate D, Schuurmans MJ, van Eijk J, Bell JJ, Schoonhoven L, and Ettema RGA
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- Humans, Aged, Delphi Technique, Hospitals, Educational Status, Independent Living, Hospitalization
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Background To improve nutritional care for community-dwelling older adults before, during, and after hospitalization, factors influencing nurses' current behavior should be targeted. The aim of this study was to obtain expert consensus on which factors influencing the behavior of hospital and home care nurses are most relevant, modifiable, and feasible to influence. Method In a two-round Delphi study, nine pre-selected factors were rated by 26 experts. Results Eight factors were rated as relevant, modifiable, and feasible to influence: (1) lack of sufficient knowledge, (2) mainly neutral attitude, (3) low prioritization, (4) ambiguous motivation to routinely use guidelines and screening tools, (5) moderate awareness about risk factors, (6) lack of sense of involving informal caregivers, (7) ambiguous motivation to follow education and training, and (8) strong focus on medical nutrition. Conclusion The expert panel reached consensus on eight factors influencing nurses' current behavior. To enhance nutritional care to prevent malnutrition in older adults, strategies are needed for targeting these factors in nursing practice, education, and research. [ J Contin Educ Nurs . 2022;53(12):545-556.] .
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- 2022
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14. Work difficulties in people with multiple sclerosis: The role of anxiety, depression and coping.
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van Egmond E, van der Hiele K, van Gorp D, Jongen PJ, van der Klink J, Reneman MF, Beenakker E, van Eijk J, Frequin S, de Gans K, van Geel BM, Gerlach O, Hengstman G, Mostert JP, Verhagen W, Middelkoop H, and Visser LH
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Background: Symptoms of anxiety and depression affect the daily life of people with multiple sclerosis (MS). This study examined work difficulties and their relationship with anxiety, depression and coping style in people with MS., Methods: 219 employed people with MS (median age = 43 years, 79% female) completed questionnaires on anxiety, depression, coping style, demographics and work difficulties, and underwent a neurological examination. Two regression analyses were performed with work difficulties as the dependent variable and either anxiety or depression as continuous independent variables. Coping style, age, gender, educational level, MS-related disability and disease duration were added as additional predictors, as well as interaction terms between coping style and either symptoms of depression or anxiety., Results: A significant model was found ( F
(10,205) = 13.14, p < 0.001, R2 = 0.39) in which anxiety, emotion- and avoidance-oriented coping and MS-related disability were positively related to work difficulties. The analysis of depression resulted in a significant model ( F(10,205) = 14.98, p < 0.001, R2 = 0.42) in which depression, emotion- and avoidance-oriented coping and MS-related disability were positively related to work difficulties. None of the interaction effects were significant., Conclusions: Work difficulties were positively related to anxiety, depression, emotion- and avoidance-oriented coping and MS-related disability in workers with MS., Competing Interests: Declaration of conflicting interests: The author(s) declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: Disclosure: E. van Egmond, K. van der Hiele, D. van Gorp, J. van der Klink, M. Reneman, E. Beenakker, K. de Gans, B.M. van Geel, O. Gerlach, J. Mostert, and H. Middelkoop report no conflict of interest. P. Jongen received honoraria from Bayer Netherlands and Orikami Personalized Health Care, Netherlands, for consultancy activities and is chairman of the MSmonitor foundation, Netherlands. J. van Eijk received honoraria for lectures and honoraria for advisory boards from Sanofi Genzyme, Roche, Merck Serono, Novartis and Teva. S. Frequin received honoraria for lectures, grants for research and honoraria for advisory boards from Sanofi Genzyme, Merck Serono, Novartis, Biogen and Roche. G. Hengstman has received consultation fees and grants from Biogen, BMS, Genzyme-Sanofi, Merck BV, Novartis Pharma and Roche. W. Verhagen received honoraria for lectures from Biogen and Merck Serono, reimbursement for hospitality from Biogen, Sanofi Genzyme and Merck Serono, and honoraria for advisory boards from Merck Serono. L.H. Visser received honoraria for lectures and honoraria for advisory boards from Merck Serono and Novartis., (© The Author(s), 2022.)- Published
- 2022
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