229 results on '"Visser, Martine"'
Search Results
202. Social norms, social distance, social approval and household electricity consumption: A field experiment in Cape Town
- Author
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Smith, Grant and Visser, Martine
- Subjects
Economics ,InformationSystems_INFORMATIONSTORAGEANDRETRIEVAL ,ComputingMethodologies_DOCUMENTANDTEXTPROCESSING ,GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries) - Abstract
Includes bibliographical references., This research tested whether households in Cape Town would respond to reported social norms of electricity consumption in a manner consistent with theory and earlier studies.
- Published
- 2013
203. An economic perspective on the influence of social interaction on risky behaviours
- Author
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Tibesigwa, Byela and Visser, Martine
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Economics - Abstract
Includes abstract., Includes bibliographical references., This thesis presents the theme of social interaction and risk taking. There is a growing interest in incorporating the influence of social interaction in the economic modelling of human choices. Although the current economic literature is awash with the topic of social interaction a disproportionate bias is towards theoretical as opposed to empirical work. Of the existing empirical literature, a small proportion deals with sub-Saharan African (SSA) countries as case studies. This is quite surprising given that the cultural characteristic of close-knit social kinship and ties in this region makes it more likely that human choices will be influenced by social interaction. Further to this the existing empirical literature is abounds with criticism regarding the lack of sound methods to curb identification problems which include the effects of unobservables, selection bias, simultaneity and the related reflection problem. Against this backdrop the thesis makes an empirical investigation into the role of social interaction on risk taking behaviour. The thesis consists of three self-contained papers, each with the aim of unearthing the influence of social interaction on risk taking. Two types of risky behaviours apparent in SSA are investigated. The first is risky sexual behaviour associated with the HIV infection. This risk is covered in two papers that constitute chapters 2 and 3. The second type of risky behaviour relates to crimes of social behaviour, specifically contact crimes and contact related crimes, and this is covered in one paper which forms chapter 4.
- Published
- 2012
204. Provision of public goods and health outcomes during political transition in Nigeria
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Adewara, Olabisi and Visser, Martine
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Economics - Abstract
Includes abstract., Includes bibliographical references., This study investigates three issues connected with governance and citizens welfare in Nigeria. One of the current debates in the political economy literature focuses on the bene ts of democracies to ordinary citizens, especially in developing countries, and particularly in sub-Saharan African countries. Most Nigerians have been questioning the bene ts of transition from military rule to democratic rule in 1999 to ordinary citizens. This concern relates to the lack of credibility of electoral processes in the country. Politicians in Nigeria have embarked on various unlawful strategies both to win and perpetuate positions of power, with no regard for the principles of free and fair elections. Non-credible elections often lead to capture of political power at both national and sub-national levels in the country by special interest groups headed by political godfathers (1). This thesis examines whether transition from an autocratic military regime to a relatively competitive democratic regime results in higher provision of public goods and a reduction in health inequality, given the prevalence of political capture due to lack of credible electoral competition in Nigeria. The thesis questions the assumption that transition from a military dictatorship to relatively competitive democratic rule will ensure an increase in the provision of public goods and a reduction in health inequality.
- Published
- 2012
205. Personal carbon emissions trading : an experimental analysis
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Dane, Ant and Visser, Martine
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Applied Economics - Abstract
Includes abstract., Includes bibliographical references., This study was designed to assess the potential role of PCT, and to better understand the public's response to mitigation policy, within the context of South Africa. An experiment was conducted that simulated a personal emissions trading scheme.
- Published
- 2012
206. Measuring risk aversion among asset poor small-scale farmers in the Western Cape, South Africa
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Gwata, Feri and Visser, Martine
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Economics - Abstract
Includes bibliographical references (leaves 48-52)., This paper presents an empirical analysis of the contentious issue regarding risk preferences of small-scale farmers in low-income countries. Resource-poor farmers have often been described as being inherently risk averse given their tendency to under-invest in risky yet profitable crop technologies. In contrast to this dominant view we argue that it is unlikely that these farmers have an inherent disposition towards risk aversion. We hypothesize that the observed under-investment in crop technologies is largely due to the financial constraints which these farmers face.
- Published
- 2010
207. Finding a cohesive and effective conservation in the Overberg - an experimental application of the agglomeration bonus
- Author
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Modise, Boipuso, Visser, Martine, and Leiman, Anthony
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Economics - Abstract
Includes bibliographical references (leaves 40-41)., The Overberg region in the Western Cape is an area rich in conservation value. This region has another distinctive feature in that there are three different landowners adjacent to one another, each boasting land rich in biodiversity value. In the event that the land use practices of the landowners are in conflict with biodiversity conservation on their land, there is a trade-off between net social benefit and landowner welfare. Currently, there is no explicit conservation regulation that governs the way these landowners manage the conservation value of their land. This study investigates the viability of the application of an agglomeration bonus as a voluntary incentive mechanism aimed promoting sound conservation practices at three sites managed within the region. The analysis is unique in its application of both the normal form game theory and spatial mapping approaches to the problem in a three-player context. The primary finding of this work is that in a controlled environment the application of an agglomeration bonus does result in the creation of contiguous reserves between adjacent landowners.
- Published
- 2009
208. Feasibility of a Dutch post-discharge parenting intervention (TOP program) for moderate preterm born infants.
- Author
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Flierman M, Möller EL, Engelbert RHH, van Kaam AH, Bossen D, and Jeukens-Visser M
- Abstract
Background and Aim: Moderate preterm (MP) birth is associated with an increased risk of developmental problems. However, post-discharge support for this group is scarce. The aim of this study was to evaluate the feasibility of a post-discharge parenting program (TOP program) for MP infants. Three feasibility dimensions were evaluated (1) recruitment capability and compliance, (2) intervention acceptability, and (3) limited efficacy testing., Methods: A group of MP infants with a gestational age (GA) between 32
0/7 -346/7 weeks and their parents received six home visits by a TOP interventionist until 6 months corrected age (CA). A pre-posttest intervention design with quantitative and qualitative measures was used. Recruitment capability and compliance, acceptability, and satisfaction with the intervention were evaluated using a questionnaire, checklists, interviews, and a focus group. Infant socio-emotional development, parental distress, self-efficacy, and reflective functioning were measured with questionnaires. Observation measurements were used for infant motor development and parental sensitivity., Results: Thirty-two families completed the six home visits. The satisfaction rate (scale 0-10) was remarkably high (Mean 9.4, range: 8-10). Parents reported that the program was suitable, enhanced their understanding of their infants' developmental needs, and increased their self-efficacy. The infants showed age-appropriate motor and socio-emotional development post-intervention. Parental self-efficacy, reflective functioning, and sensitivity improved from pre to post intervention, with small to large effect sizes., Conclusion: The study demonstrated high compliance, acceptability, and satisfaction with the TOP program for MP infants with promising infant and parent outcomes. This study contributes to the preparatory work prior to a larger scale evaluation and dissemination., Competing Interests: Declaration of competing interest The authors have no conflict of interests., (Copyright © 2024. Published by Elsevier B.V.)- Published
- 2024
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209. Importance of methodological pluralism in deriving counterfactuals for evidence-based conservation.
- Author
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Holden P, Anderson M, Eckardt F, Ziervogel G, Jack SL, New MG, Smit J, Visser M, and Hoffman MT
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- South Africa, Ecosystem, Conservation of Natural Resources methods, Biodiversity
- Abstract
Most protected area impact research that uses counterfactuals draws heavily on quantitative methods, data, and knowledge types, making it valuable in producing generalizations but limited in temporal scope, historical detail, and habitat diversity and coverage of ecosystem services. We devised a methodological pluralistic approach, which supports social science qualitative methods, narratives, mixed methods, and interdisciplinarity, to fully unlock the potential of counterfactuals in ensuring a place-based and detailed understanding of the socioecological context and impacts of protected areas. We applied this approach to derive possible counterfactual conditions for the impact of a montane protected area on 40 years of vegetation change in the Cape Floristic Region-a global biodiversity hotspot and UNESCO World Heritage Site in South Africa. We incorporated diverse methods, knowledge, and information sources, drawing on before-after protected area comparisons for inside and outside the protected area. A significant increase in shrubland vegetation (17-30%) was observed and attributed primarily to a decline in frequent burning for grazing. This also occurred outside the protected area and was driven by socioeconomic drivers and not by concerns over biodiversity conservation or land degradation. Had the protected area not been established the area would have seen intensification of cultivation and increased road networks, buildings, and water storage in dams. Our approach increased historical temporal coverage of socioecological change and contextualized assumptions around causality. Protected area impact evaluation should reengage in place-based research that fully incorporates pluralism in methodologies for constructing counterfactuals in a way that builds regional and global understanding from the local level upward. We devised 10 key principles for deriving counterfactuals grounded in methodological pluralism, covering aspects of collaboration, cocreation, inter- and transdisciplinarity, diverse values and lived experiences, multiple knowledge types, multiple possible causal mechanisms, social science qualitative methods, perceptions, perspectives, and narratives., (© 2024 The Authors. Conservation Biology published by Wiley Periodicals LLC on behalf of Society for Conservation Biology.)
- Published
- 2024
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210. Parents' information needs during the first year at home with their very premature born child; a qualitative study.
- Author
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Flierman M, Bossen D, de Boer R, Vriend E, van Nes F, van Kaam A, Engelbert R, and Jeukens-Visser M
- Abstract
Objective: To obtain insights into parents' information needs during the first year at home with their very preterm (VP) born infant., Methods: We conducted semi-structured interviews with parents of VP infants participating in a post-discharge responsive parenting intervention (TOP program). Online interviews were audiotaped and transcribed verbatim. Inductive thematic analysis was performed by two independent coders., Results: Ten participants were interviewed and had various and changing information needs during the developmental trajectory of their infant. Three main themes emerged; (1) Help me understand and cope, (2) Be fully responsible for my baby, and (3) Teach me to do it myself. Available and used sources, such as the Internet, did not meet their information needs. Participants preferred their available and knowledgeable healthcare professionals for reassurance, tailored information, and practical guidance., Conclusion: This study identified parents' information needs during the first year at home with their VP infant and uncovered underlying re-appearing needs to gain confidence in child-caring abilities and autonomy in decision-making about their infants' care., Innovation: This study provides valuable information for healthcare professionals and eHealth developers to support parental self-efficacy during the first year after preterm birth., 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 Authors.)
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- 2024
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211. Survey data on the socio-economic characteristics and electric vehicle perceptions of paratransit owners and drivers in and around the Cape Town Metropole of South Africa.
- Author
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Hull C, Giliomee JH, Visser M, and Booysen MJT
- Abstract
The survey data contain information on the socio-economic characteristics and intention of electric vehicle (EV) adoption amongst paratransit owners and drivers, to address knowledge gaps and inform policy-making in paratransit electrification. The data were collected by distributing a Microsoft Forms survey questionnaire among paratransit owners and drivers in and around Cape Town, South Africa. The questions in the survey were designed to gain information, and to provide information on the latent constructs of the behavioural framework constructed in "Electric vehicle adoption intention among paratransit owners and drivers in South Africa". The data were used in the aforementioned paper to shed light on the attitudes, barriers, and enablers to EV adoption in the paratransit sector, providing insights for targeted interventions and promoting sustainable mobility. The data can be re-used for more in-depth studies of, as well as comparative studies assessing the socio-economic profiles and EV perceptions of paratransit owners and drivers in vs. other regions, and longitudinal studies benchmarking changes in EV perceptions in these demographics over time. Comparative studies could identify regional variations, cultural influences, and policy implications for promoting EV adoption in different contexts, and longitudinal studies can assess the effectiveness of interventions, policy changes, or technological advancements on EV adoption in the paratransit sector over time., (© 2024 The Author(s).)
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- 2024
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212. Perceptions of the seriousness of major public health problems during the COVID-19 pandemic in seven middle-income countries.
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Carson RT, Hanemann M, Köhlin G, Adamowicz W, Sterner T, Amuakwa-Mensah F, Alpizar F, Khossravi EA, Jeuland M, Bonilla JA, Tan-Soo JS, Nam PK, Ndiritu SW, Wadehra S, Chegere MJ, Visser M, Chukwuone NA, and Whittington D
- Abstract
Introduction: Public perception of the seriousness of the COVID-19 pandemic compared to six other major public health problems (alcoholism and drug use, HIV/AIDS, malaria, tuberculosis, lung cancer and respiratory diseases caused by air pollution and smoking, and water-borne diseases like diarrhea) is unclear. We designed a survey to examine this issue using YouGov's internet panels in seven middle-income countries in Africa, Asia, and Latin America in early 2022., Methods: Respondents rank ordered the seriousness of the seven health problems using a repeated best-worst question format. Rank-ordered logit models allow comparisons within and across countries and assessment of covariates., Results: In six of the seven countries, respondents perceived other respiratory illnesses to be a more serious problem than COVID-19. Only in Vietnam was COVID-19 ranked above other respiratory illnesses. Alcoholism and drug use was ranked the second most serious problem in the African countries. HIV/AIDS ranked relatively high in all countries. Covariates, particularly a COVID-19 knowledge scale, explained differences within countries; statistics about the pandemic were highly correlated with differences in COVID-19's perceived seriousness., Conclusions: People in the seven middle-income countries perceived COVID-19 to be serious (on par with HIV/AIDS) but not as serious as other respiratory illnesses. In the African countries, respondents perceived alcoholism and drug use as more serious than COVID-19. Our survey-based approach can be used to quickly understand how the threat of a newly emergent disease, like COVID-19, fits into the larger context of public perceptions of the seriousness of health problems., (© 2023. The Author(s).)
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- 2023
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213. Response to "Scoping review of interventions to support families with preterm infants post-NICU discharge" by Griffith et. al published in Journal of Pediatric Nursing ().
- Author
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Jeukens-Visser M, Leemhuis A, and Flierman M
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- Infant, Child, Infant, Newborn, Humans, Intensive Care Units, Neonatal, Intensive Care, Neonatal, Pediatric Nursing, Infant, Premature, Patient Discharge
- Published
- 2023
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214. Development and evaluation of a fidelity tool in a post-discharge responsive parenting intervention program for very preterm born children.
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Flierman M, Vriend E, Leemhuis AG, Engelbert RHH, and Jeukens-Visser M
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- Infant, Newborn, Infant, Humans, Child, Reproducibility of Results, Aftercare, Patient Discharge, Program Evaluation methods, Parenting, Infant, Extremely Premature
- Abstract
The TOP program is a fully implemented responsive parenting intervention for very preterm born infants. Fidelity monitoring of interventions is important for preserving program adherence, impact outcomes and to make evidence-based adaptations. The aim of this study was to develop a fidelity tool for the TOP program following an iterative and co-creative process and subsequently evaluate the reliability of the tool. Three consecutive phases were carried out. Phase I: Initial development and pilot testing two methods namely self-report and video based observation. Phase II: Adaptations and refinements. Phase III: Evaluation of the psychometric properties of the tool based on 20 intervention videos rated by three experts.The interrater reliability of the adherence and competence subscales was good (ICC.81 to .84) and varied from moderate to excellent for specific items (ICC between .51 and .98). The FITT displayed a high correlation (Spearman's rho.79 to.82) between the subscales and total impression item. The co-creative and iterative process resulted in a clinical useful and reliable tool for evaluating fidelity in the TOP program. This study offers insights in the practical steps in the development of a fidelity assessment tool which can be used by other intervention developers., (Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2023
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215. Neurodevelopmental Outcomes at Two Years' Corrected Age of Very Preterm Infants after Implementation of a Post-Discharge Responsive Parenting Intervention Program (TOP Program).
- Author
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Halbmeijer NM, Jeukens-Visser M, Onland W, Flierman M, van Kaam AH, and Leemhuis A
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- Infant, Child, Infant, Newborn, Humans, Parenting, Infant, Premature, Aftercare, Child Development, Patient Discharge, Infant, Premature, Diseases prevention & control, Bronchopulmonary Dysplasia prevention & control
- Abstract
Objective: To compare neurodevelopmental outcomes at 2 years corrected age (CA) between infants born very preterm (VP) who did or did not receive a postdischarge responsive parenting intervention (Transmural developmental support for very preterm infants and their parents [TOP program]) between discharge home and 12 months' CA., Study Design: The Systemic Hydrocortisone to Prevent Bronchopulmonary Dysplasia (SToP-BPD) study showed no differences between treatment groups in motor and cognitive development using the Dutch Bayley Scales of Infant Development and behavior using the Child Behavior Checklist at 2 years' CA. During its study period, the TOP program was gradually scaled up nationwide in the same population, providing an opportunity to evaluate the effect of this program on neurodevelopmental outcome, after adjusting for baseline differences., Results: Among 262 surviving VP infants in the SToP-BPD study, 35% received the TOP program. Infants in the TOP group had a significantly lower incidence of a cognitive score <85 (20.3% vs 35.2%; adjusted absolute risk reduction: -14.1% [95% CI: -27.2 to -1.1]; P = .03), and a significantly higher mean cognitive score (96.7 ± 13.8), compared with the non-TOP group (92.0 ± 17.5; crude mean difference: 4.7 [95% CI: 0.3 to 9.2]; P = .03). No significant differences were found on motor scores. For behavior problems, a small but statistically significant effect for anxious/depressive problems was found in the TOP group (50.5 vs 51.2; P = .02)., Conclusions: VP infants supported by the TOP program from discharge until 12 months' CA had better cognitive function at 2 years' CA. This study demonstrates a sustained positive effect of the TOP program in VP infants., (Copyright © 2023 The Author(s). Published by Elsevier Inc. All rights reserved.)
- Published
- 2023
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216. Factors Associated With Walking Adaptability and Its Relationship With Falling in Polio Survivors.
- Author
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Tuijtelaars J, Jeukens-Visser M, Nollet F, and Brehm MA
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- Cross-Sectional Studies, Fear, Humans, Muscle Weakness, Survivors, Time and Motion Studies, Walking physiology, Poliomyelitis, Postural Balance physiology
- Abstract
Objective: To explore factors associated with walking adaptability and associations between walking adaptability and falling in polio survivors., Design: Cross-sectional study., Setting: Outpatient expert polio clinic., Participants: Polio survivors (N=46) who fell in the previous year and/or reported fear of falling., Interventions: Not applicable., Main Outcome Measures: Walking adaptability was assessed on an interactive treadmill and operationalized as variable target-stepping and reactive obstacle avoidance performance. Further, we collected walking speed and assessed leg muscle strength, balance performance (Berg Balance Scale and Timed-Up-and-Go Test), balance confidence (Activities-specific Balance Confidence scale), ambulation level, orthosis use, fear of falling, and number of falls in the previous year., Results: With walking speed included as a covariate, muscle weakness of the most affected leg and balance confidence explained 54% of the variance in variable target-stepping performance. For reactive obstacle avoidance performance, muscle weakness of the most affected leg and knee extensor strength of the least affected leg explained 32% of the variance. Only target-stepping performance was significantly related to the number of falls reported in the previous year (R
2 =0.277, P<.001) and mediated the relation between leg muscle weakness and balance confidence with falling., Conclusion: Our exploratory study suggests that leg muscle weakness and reduced balance confidence limit walking adaptability in polio survivors. Because poorer target stepping rather than obstacle avoidance performance was associated with falling, our results indicate that a limited ability to ensure safe foot placement may be a fall risk factor in this group. These findings should be confirmed in a larger sample., (Copyright © 2022 The Authors. Published by Elsevier Inc. All rights reserved.)- Published
- 2022
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217. Mental health monitoring in parents after very preterm birth.
- Author
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Vriend E, Leemhuis A, Flierman M, van Schie P, Nollet F, and Jeukens-Visser M
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- Anxiety epidemiology, Depression epidemiology, Fathers, Female, Humans, Infant, Infant, Newborn, Male, Mothers, Parents, Pregnancy, Stress, Psychological, Mental Health, Premature Birth
- Abstract
Aim: To evaluate parental mental health monitoring during follow-up care for very preterm (VPT) infants, describe symptoms of anxiety and depression and risk factors for mothers and fathers at 1 and 12 months of corrected age., Methods: Parents completed the Hospital Anxiety and Depression Scale (HADS). Psychological symptoms and risk factors were analysed within and between mothers and fathers., Results: In 4 years, the monitoring reached 1260 (48%) families. Of these, 693 mothers and 340 fathers (300 couples) completed the HADS twice. At 1 month, 22% and 15% of the mothers and 10% and 9% of the fathers, respectively, reported elevated symptoms of anxiety and depression. At 12 months, these rates were significantly reduced to 14% and 9% for mothers and 5% and 4% for fathers respectively. Within couples, anxiety and depression were positively associated. At 12 months, in 20% of the couples, one or both parents reported elevated symptoms. Risk factors were length of hospital stay, migration background, educational level and employment status., Conclusion: The mental health of parents of VPT infants improved, but elevated symptoms were still observed in 17% of included families after one year. Acknowledging and remediating parental mental health remain essential during follow-up care., (© 2021 The Authors. Acta Paediatrica published by John Wiley & Sons Ltd on behalf of Foundation Acta Paediatrica.)
- Published
- 2021
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218. Correction to: Influence of green tea consumption on endoxifen steady-state concentration in breast cancer patients treated with tamoxifen.
- Author
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Braal CL, Hussaarts KGAM, Seuren L, Oomen-deHoop E, de Bruijn P, Buck SAJ, Bos MEMM, Thijs-Visser MF, Zuetenhorst HJM, Mathijssen-van Stein D, Vastbinder MB, van Leeuwen RWF, van Gelder T, Koolen SLW, Jager A, and Mathijssen RHJ
- Published
- 2021
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219. Influence of green tea consumption on endoxifen steady-state concentration in breast cancer patients treated with tamoxifen.
- Author
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Braal CL, Hussaarts KGAM, Seuren L, Oomen-de Hoop E, de Bruijn P, Buck SAJ, Bos MEMM, Thijs-Visser MF, Zuetenhorst HJM, Mathijssen-van Stein D, Vastbinder MB, van Leeuwen RWF, van Gelder T, Koolen SLW, Jager A, and Mathijssen RHJ
- Subjects
- Cross-Over Studies, Dietary Supplements, Female, Humans, Tamoxifen analogs & derivatives, Tea, Breast Neoplasms drug therapy, Catechin analysis
- Abstract
Background: Many cancer patients use additional herbs or supplements in combination with their anti-cancer therapy. Green tea-active ingredient epigallocatechin-3-gallate (EGCG)-is one of the most commonly used dietary supplements among breast cancer patients. EGCG may alter the metabolism of tamoxifen. Therefore, the aim of this study was to investigate the influence of green tea supplements on the pharmacokinetics of endoxifen; the most relevant active metabolite of tamoxifen., Methods: In this single-center, randomized cross-over trial, effects of green tea capsules on endoxifen levels were evaluated. Patients treated with tamoxifen for at least 3 months were eligible for this study. After inclusion, patients were consecutively treated with tamoxifen monotherapy for 28 days and in combination with green tea supplements (1 g twice daily; containing 300 mg EGCG) for 14 days (or vice versa). Blood samples were collected on the last day of monotherapy or combination therapy. Area under the curve (AUC
0-24h ), maximum concentration (Cmax ) and minimum concentration (Ctrough ) were obtained from individual plasma concentration-time curves., Results: No difference was found in geometric mean endoxifen AUC0-24h in the period with green tea versus tamoxifen monotherapy (- 0.4%; 95% CI - 8.6 to 8.5%; p = 0.92). Furthermore, no differences in Cmax (- 2.8%; - 10.6 to 5.6%; p = 0.47) nor Ctrough (1.2%; - 7.3 to 10.5%; p = 0.77) were found. Moreover, no severe toxicity was reported during the whole study period., Conclusions: This study demonstrated the absence of a pharmacokinetic interaction between green tea supplements and tamoxifen. Therefore, the use of green tea by patients with tamoxifen does not have to be discouraged.- Published
- 2020
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220. Rethinking preventive post-discharge intervention programmes for very preterm infants and their parents.
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van Wassenaer-Leemhuis AG, Jeukens-Visser M, van Hus JW, Meijssen D, Wolf MJ, Kok JH, Nollet F, and Koldewijn K
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- Adult, Child, Preschool, Humans, Infant, Infant, Newborn, Child Development physiology, Family Therapy methods, Infant, Extremely Premature physiology, Parent-Child Relations, Parenting psychology, Primary Prevention methods
- Abstract
Post-discharge preventive intervention programmes with involvement of the parent may support the resilience and developmental outcomes of infants born very preterm. Randomized controlled trials of home-based family-centred intervention programmes in very preterm infants that aimed to improve cognitive outcome, at least at age two, were selected and updated on the basis of a recent systematic review to compare their content and effect over time to form the basis of a narrative review. Six programmes were included in this narrative review. Four of the six programmes led to improved child cognitive and/or motor development. Two programmes, which focused primarily on responsive parenting and development, demonstrated improved cognitive outcome up till 5 years after completion of the programme. The programmes that also focused on maternal anxiety remediation led to improved maternal mental well-being, along with improved child behaviour, in one study - even at 3 years after completion of the programme. The magnitude of the effects was modest. Family-centred preventive intervention programmes that aim at improvement of child development should be continued after discharge home to improve the preterm child's resilience. Programmes may be most effective when they support the evolvement of a responsive parent-infant relationship over time, as well as the parent's well-being., (© 2016 The Authors. Developmental Medicine & Child Neurology © 2016 Mac Keith Press.)
- Published
- 2016
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221. The relationship between multiple developmental difficulties in very low birth weight children at 3½ years of age and the need for learning support at 5 years of age.
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Verkerk G, Jeukens-Visser M, van Wassenaer-Leemhuis A, Kok J, and Nollet F
- Subjects
- Child Behavior, Child Language, Child, Preschool, Education, Special methods, Follow-Up Studies, Humans, Infant, Newborn, Language Development, Logistic Models, Motor Skills, Needs Assessment, Developmental Disabilities epidemiology, Developmental Disabilities rehabilitation, Early Intervention, Educational methods, Infant, Very Low Birth Weight, Motor Skills Disorders epidemiology, Motor Skills Disorders rehabilitation
- Abstract
This study investigated whether multiple developmental difficulties are more frequent in very low birth weight (VLBW) children than in those born full term. The association between multiple developmental difficulties assessed at 3½ years of age and educational provision for the child at 5½ years was also investigated, with 'educational provision' referring to the curriculum, school placement and the level of learning support. There were 143 VLBW children without cerebral palsy (CP) and 41 term-born peers assessed at 3½ years of age. The assessment included 6 measures of development: word comprehension, visual motor integration, visual perception, motor coordination, executive functioning and behaviour. Educational provision was determined at age 5½ years. A mildly abnormal score (score <1 standard deviation) was considered to indicate developmental difficulty. Scores from the six measures of development were analysed to determine the difficulty frequency and the presence of multiple difficulties (>1 difficulty score) in each child. This study showed that at 3½ years of age, the VLBW children had significantly more difficulty with motor coordination than their term-born peers. In addition, 27% of the VLBW children had multiple difficulties compared to 10% in the term-born group. Multiple logistic regression analyses showed that of the difficulties, impaired motor coordination was most strongly associated with the requirement for learning support two years later. Regression analyses showed that having multiple difficulties was significantly associated with the need for learning support (Odds Ratio of 3.4 (95% CI: 1.5-7.8). These results show that the presence of multiple difficulties in a VLBW child of preschool age, can impact the child's educational provision two years later., (Copyright © 2013 Elsevier Ltd. All rights reserved.)
- Published
- 2014
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222. Comparing two motor assessment tools to evaluate neurobehavioral intervention effects in infants with very low birth weight at 1 year.
- Author
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Van Hus JW, Jeukens-Visser M, Koldewijn K, Van Sonderen L, Kok JH, Nollet F, and Van Wassenaer-Leemhuis AG
- Subjects
- Child Development, Developmental Disabilities rehabilitation, Female, Humans, Infant, Infant, Premature, Male, Motor Skills, Psychomotor Disorders rehabilitation, Developmental Disabilities diagnosis, Infant, Very Low Birth Weight growth & development, Psychomotor Disorders diagnosis, Severity of Illness Index
- Abstract
Background: Infants with very low birth weight (VLBW) are at increased risk for motor deficits, which may be reduced by early intervention programs. For detection of motor deficits and to monitor intervention, different assessment tools are available. It is important to choose tools that are sensitive to evaluate the efficacy of intervention on motor outcome., Objective: The purpose of this study was to compare the Alberta Infant Motor Scale (AIMS) and the Psychomotor Developmental Index (PDI) of the Bayley Scales of Infant Development-Dutch Second Edition (BSID-II-NL) in their ability to evaluate effects of an early intervention, provided by pediatric physical therapists, on motor development in infants with VLBW at 12 months corrected age (CA)., Design: This was a secondary study in which data collected from a randomized controlled trial (RCT) were used., Methods: At 12 months CA, 116 of 176 infants with VLBW participating in an RCT on the effect of the Infant Behavioral Assessment and Intervention Program were assessed with both the AIMS and the PDI. Intervention effects on the AIMS and PDI were compared., Results: Corrected for baseline differences, significant intervention effects were found for AIMS and PDI scores. The highest effect size was for the AIMS subscale sit. A significant reduction of abnormal motor development in the intervention group was found only with the AIMS., Limitations: No Dutch norms are available for the AIMS., Conclusions: The responsiveness of the AIMS to detect intervention effects was better than that of the PDI. Therefore, caution is recommended in monitoring infants with VLBW only with the PDI, and the use of both the AIMS and the Bayley Scales of Infant Development is advised when evaluating intervention effects on motor development at 12 months CA.
- Published
- 2013
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223. Assessing independency in daily activities in very preterm children at preschool age.
- Author
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Verkerk G, Jeukens-Visser M, van Wassenaer-Leemhuis A, Koldewijn K, Kok J, and Nollet F
- Subjects
- Child, Preschool, Disability Evaluation, Female, Humans, Infant, Newborn, Logistic Models, Premature Birth metabolism, Activities of Daily Living, Child Development, Infant, Premature, Infant, Very Low Birth Weight
- Abstract
This study investigates whether very low birth weight (VLBW) preschoolers experience disability in daily activities and what the risk factors for disability in daily activities are. The Dutch Pediatric Evaluation of Disability Inventory (PEDI-NL) was used to detect disability in daily activities in 143 VLBW children without cerebral palsy (CP) at 44 months of corrected age (CA). Data from the psychomotor-developmental index (PDI) and the mental developmental index (MDI) of the Bayley Scales of Infant Development II (BSID II) at 24 months CA, and data relating to perinatal and socio-economic status were available. Disability in daily activities was found in 27 (19%) VLBW children without CP. High frequencies of disability were found in 19 (13%) children on the mobility domain and in 12 (8%) children on the social functioning domain. The multiple logistic regression analyses showed that low BSID II outcomes (<2 SD) were risk factors for disability in the mobility domain, but not for disability in the social functioning domain. The predictive value of the BSID II outcomes is moderate, 46% of the VLBW children with a low PDI and 44% with a low MDI developed a disability in the mobility domain. This study showed a higher frequency of disability in daily activities in VLBW preschoolers compared to term born peers. Therefore, it is suggested to assess VLBW children's performance of daily activities before they start school., (Copyright © 2013 Elsevier Ltd. All rights reserved.)
- Published
- 2013
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224. [Skin abnormalities as first sign of Waldenström macroglobulinaemia].
- Author
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Visser MF, Croon-de Boer F, Lonnee ER, and Drees A
- Subjects
- Antibodies, Monoclonal, Murine-Derived therapeutic use, Cyclophosphamide therapeutic use, Female, Humans, Immunologic Factors therapeutic use, Middle Aged, Prednisone therapeutic use, Rituximab, Treatment Outcome, Vasculitis, Leukocytoclastic, Cutaneous drug therapy, Vasculitis, Leukocytoclastic, Cutaneous etiology, Vasculitis, Leukocytoclastic, Cutaneous pathology, Vincristine therapeutic use, Waldenstrom Macroglobulinemia complications, Waldenstrom Macroglobulinemia drug therapy, Waldenstrom Macroglobulinemia pathology, Vasculitis, Leukocytoclastic, Cutaneous diagnosis, Waldenstrom Macroglobulinemia diagnosis
- Abstract
Small-vessel vasculitis was found in a 56-year-old female patient as the first sign of Waldenström macroglobulinemia. After the diagnosis was made by immunological investigation, she was treated successfully by combination therapy with rituximab, cyclophosphamide, vincristine en prednisone. Leukocytoclastic vasculitis occurs in only 5% of patients with Waldenström macroglobulinaemia as the first manifestation of this condition.
- Published
- 2010
225. A longitudinal evaluation of health-related quality of life of patients with Parkinson's disease.
- Author
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Visser M, Verbaan D, van Rooden S, Marinus J, van Hilten J, and Stiggelbout A
- Subjects
- Activities of Daily Living, Adaptation, Psychological, Autonomic Nervous System, Cohort Studies, Depression, Female, Humans, Linear Models, Longitudinal Studies, Male, Middle Aged, Multivariate Analysis, Pain Measurement, Parkinson Disease complications, Parkinson Disease physiopathology, Prognosis, Psychometrics, Severity of Illness Index, Sickness Impact Profile, Statistics as Topic, Surveys and Questionnaires, Time Factors, Parkinson Disease psychology, Quality of Life, Quality-Adjusted Life Years, Stress, Psychological
- Abstract
Objectives: Few longitudinal studies have evaluated health-related quality of life (HRQoL) in Parkinson's disease (PD) and these studies have not evaluated all potentially relevant domains of PD. Our objective was to identify domains at baseline that predict change in HRQoL, and to evaluate the relation between change in HRQoL and change in particular domains of PD., Methods: A total of 336 patients who participated in the longitudinal SCOPA-PROPARK cohort study and had data from the first and third annual evaluation were included in this study. The Scales for Outcomes in Parkinson's disease (SCOPA) evaluation was used to assess impairments and disabilities. HRQoL was assessed with the EuroQol-5D visual analogue scale. Multiple linear regression analysis with "change in HRQoL" as dependent variable was used to identify factors that influence the change in HRQoL., Results: Health-related quality of life as well as most impairment and disability domains decreased significantly from baseline to follow-up. The two regression models of "change in HRQoL," adjusted for baseline HRQoL, included 1) the baseline domains autonomic dysfunction, nighttime sleep problems, and cognitive function, and 2) "change in psychosocial problems,""change in depressive symptoms," and "change in cognitive function.", Conclusions: Patients who have autonomic dysfunction, nighttime sleep problems, and cognitive dysfunction are at risk for deterioration in HRQoL. Deterioration in HRQoL over 2-year time was associated with worsening in psychosocial well-being, mood, and cognitive function. Interventions aiming to improve these domains are important and would likely contribute to improvement in HRQoL, although more research is necessary.
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- 2009
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226. Reliability of cluster results for different types of time adjustments in complex disease research.
- Author
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Colas F, Meulenbelt I, Houwing-Duistermaat JJ, Kloppenburg M, Watt I, van Rooden SM, Visser M, Marinus J, van Hilten JJ, Slagboom P, and Kok JN
- Subjects
- Algorithms, Data Interpretation, Statistical, Disease Progression, Humans, Models, Statistical, Models, Theoretical, Reproducibility of Results, Time, Time Factors, Cluster Analysis, Osteoarthritis diagnosis, Parkinson Disease diagnosis
- Abstract
We aim to identify subtypes of diseases like Osteoarthritis (OA) and Parkinson's Disease (PD) that present clinical heterogeneity. We do so by searching for homogeneous clusters in values of markers that reflect the severity of the disease. In the current paper we consider two important items for a cluster analysis. First, as time can contribute largely to the measured variability in the data, we search for the most appropriate way to adjust for it. Second, as we aim for reliable cluster analyses, cluster results should exhibit robustness to little change in the data. To investigate these issues, we transform the data by adding noise of different levels before cluster modeling and we rely on a chi(2)-based measure of association to compare cluster results for different types of time adjustment. The results of our experiments suggest to adjust data for a logarithmic age effect for OA and a square root effect of the disease duration for PD because these adjustments lead more reliable cluster results.
- Published
- 2008
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227. Evaluation of the Dutch version of the Parkinson's Disease Questionnaire 39.
- Author
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Marinus J, Visser M, Jenkinson C, and Stiggelbout AM
- Subjects
- Aged, Female, Humans, Male, Middle Aged, Reproducibility of Results, Health Status Indicators, Parkinson Disease psychology, Quality of Life, Surveys and Questionnaires
- Abstract
The psychometric properties of the Dutch version of the Parkinson's disease questionnaire 39 (PDQ39-DV) were tested in 177 patients with Parkinson's disease (PD). Internal consistency of 7 of the 8 scales was adequate (>or=0.70), but was insufficient for 'bodily discomfort' (0.59). Correlation between the PDQ39 and other instruments in this study, the SCOPA-psychosocial questionnaire, Euroqol-5D, hospital anxiety and depression scale, and a visual analogue scale for quality of life, were 0.82, 0.74, 0.63 and -0.54, respectively. The factor analysis yielded 8 factors, which accounted for 65% of the variance and revealed only small differences with the original UK version. We conclude that the PDQ39-DV displays satisfactory psychometric properties and is an appropriate instrument to assess quality of life in Dutch patients with PD.
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- 2008
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228. Assessing comorbidity in patients with Parkinson's disease.
- Author
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Visser M, Marinus J, van Hilten JJ, Schipper RGB, and Stiggelbout AM
- Subjects
- Activities of Daily Living, Aged, Antiparkinson Agents therapeutic use, Cognition Disorders diagnosis, Cognition Disorders epidemiology, Comorbidity, Disability Evaluation, Humans, Levodopa therapeutic use, Male, Neuropsychological Tests, Parkinson Disease drug therapy, Primary Health Care statistics & numerical data, Surveys and Questionnaires, Gastrointestinal Diseases epidemiology, Male Urogenital Diseases epidemiology, Parkinson Disease epidemiology
- Abstract
The aim of this study was to assess the accuracy of an interview-based assessment of comorbidity, in patients with Parkinson's disease (PD). The Cumulative Illness Rating Scale-Geriatric (CIRS-G) was completed (1) in an interview with 31 PD patients and their caregivers, and (2) by reviewing the patient's medical charts from their general practitioners. Based on the interview, all patients had some comorbidity, 84% had one or more moderate comorbid diseases. The most frequently affected organ systems were "lower gastrointestinal" and "genitourinary". The mean +/- SD total score of the interview-based (chart-based) CIRS-G was 6.9 +/- 3.8 (7.6 +/- 3.5) with a mean of 4.3 +/- 1.9 (5.0 +/- 1.9) affected organ systems and a mean of 2.1 +/- 1.7 (2.3 +/- 1.6) organ systems with at least moderate comorbidity per patient. The agreement (intraclass correlation coefficients) between the interview-based and chart-based assessments for the six summary scores ranged from 0.69 to 0.81. The agreement for the 14 organ systems ranged from 0.13 to 1.00 (weighted kappa); 12 had a K(w) above 0.40 (moderate agreement). The comorbidity summary scores had a moderate correlation with age and disability. The interview-based assessment of the CIRS-G is easy to apply and is an accurate method to assess comorbidity in patients with PD., (Copyright 2004 Movement Disorder Society)
- Published
- 2004
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229. Clinical tests for the evaluation of postural instability in patients with parkinson's disease.
- Author
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Visser M, Marinus J, Bloem BR, Kisjes H, van den Berg BM, and van Hilten JJ
- Subjects
- Accidental Falls statistics & numerical data, Aged, Case-Control Studies, Cross-Sectional Studies, Female, Humans, Male, Middle Aged, Parkinson Disease physiopathology, Parkinson Disease rehabilitation, Reproducibility of Results, Parkinson Disease classification, Postural Balance, Posture
- Abstract
Objective: To determine which test for postural instability in Parkinson's disease (PD) is reliable, valid, and easy to perform in a clinical setting., Design: Cross-sectional reliability and validity study., Setting: Academic center for movement disorders., Participants: Forty-two patients with PD and 15 controls. Based on the results of a structured interview, the patients were divided in PD-unstable (n=22) and PD-stable (n=20) groups., Interventions: Not applicable., Main Outcome Measures: Several variants of the retropulsion test with differences in execution and scoring. Responses were scored on 5 different rating scales (ratings of Nutt, Bloem, Pastor; the Unified Parkinson's Disease Rating Scale [UPDRS]; the Short Parkinson Evaluation Scale). These tests were compared with steady-stance positions., Results: The interrater reliability was high for most ratings, with weighted kappa ranging from.63 for the UPDRS to.98 for both the Pastor rating and steady-stance positions. Most ratings distinguished between the groups. However, the Nutt rating had the highest overall predictive accuracy, with a sensitivity of.63 and a specificity of.88., Conclusions: The most valid test for postural stability in PD was an unexpected shoulder pull, executed once, with taking more than 2 steps backward considered abnormal. This retropulsion test is easy to use in a clinical setting.
- Published
- 2003
- Full Text
- View/download PDF
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