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At least 1,423 records · Page 79Linked to original sources
PubMed2005

Time discounting and the body mass index. Evidence from the Netherlands.

In many Western countries, the relative weight of people -- measured by the body mass index (BMI) -- has increased substantially in recent years, leading to an increasing incidence of overweight and related health problems. As with many forms of risky behavior, it is plausible that overweight is related to the individual discount rate. Increases in credit card debts, the rise in gambling and the development of a more hedonic life style, suggest that the average discount rate has increased over time. An increase in time discounting may be a contributing factor in the rise in BMI. Applying a large set of indicators for the individual discount rate from a Dutch survey, this paper analyzes whether changes in time discounting can account for differences in body mass between individuals at a given point in time and whether changes in the average individual discount rate can explain the remarkable increase in BMI experienced in recent years in the Netherlands. We find some evidence for a link between time discounting and differences in BMI between people, but this relationship depends strongly on the choice of the proxy for the discount rate. Giving our hypothesis the best chance, we analyze the development of the time discounting proxies that are most strongly related to BMI. We find no evidence for a change of these proxies over time. Our main conclusion therefore is that overweight might be related to the way people discount future health benefits, but the increase in BMI is more likely explained by shifts in other parameters that determine the intertemporal decisions regarding the trade-off of current and future health and satisfaction.

Adolescent↗
PubMed2004

Current PTCA practice and clinical outcomes in The Netherlands: the real world in the pre-drug-eluting stent era.

AIMS: To document the practice of interventional cardiology and the clinical restenosis rate, as well as the risk factors for clinical restenosis in an unselected population of patients in daily practice and to provide a perspective for the need of new devices such as drug-eluting stents. METHODS AND RESULTS: A total of 3177 consecutive patients, who underwent successful percutaneous transluminal coronary angioplasty (PTCA) in the Netherlands, were included. Patients with acute myocardial infarction were excluded. The pre-defined end-point of clinical restenosis was defined as cardiac death, myocardial infarction and revascularisation of the target vessel. Follow-up (9.6 months, IQR 3.9) was complete in 3146 (99.3%) patients with a mean age of 62.1+/-10.7 years. Of them 896 (28.5%) were female, 459 (14.6%) had diabetes and 1459 (46.4%) had multi-vessel disease. Most patients (2105, 66.9%) were treated for stable angina. Of all patients, 819 (26.0%) were treated for multiple lesions, 2340 (74.4%) underwent stenting and 820 (26.1%) received glycoprotein IIb/IIIa inhibitors. All stented patients received life-long aspirin and ticlopidin/clopidogrel during at least 1 month after the procedure. Target vessel revascularisation during follow-up by either coronary artery by-pass grafting (CABG) or PTCA was necessary in 304 patients (9.7%). Thirty-three (1.1%) patients died of cardiac disease and 22 (0.7%) patients suffered from myocardial infarction (MI) attributable to the originally treated vessel. Overall, the need for revascularisation, or the incidence of cardiac death or MI occurred in 346 patients (11.0%), at 9 and 12 months these event-rates were 10.2% and 12.0%, respectively. Diabetes, hypertension, peripheral vessel disease, multi-vessel disease and treatment of type C lesions prevailed as independent risk factors for clinical restenosis. Longer stents and smaller minimal stent diameter were risk factors for in-stent stenosis. CONCLUSION: In this unselected series of consecutive patients treated for stable and unstable angina in everyday clinical practice in the pre-drug-eluting stent era, clinical restenosis after 9 and 12 months follow-up of the patients occurred in 10.2% and 12.0%, respectively. The risk varies from 8.3% to 17.6% depending on the number of risk factors. A proper selection of patients that benefit from new devices warranted, since the vast majority are well-treated with standard techniques and proper assignment of expensive new devices is obviously of importance for overall health care.

Angioplasty, Balloon, Coronary↗
PubMed2004

Gender and age-related differences in Burkitt lymphoma--epidemiological and clinical data from The Netherlands.

Although Burkitt's lymphoma (BL) is classified as one entity in the World Health Organisation (WHO) classification, we wondered whether BL should not be considered as a different disease in children compared with adults. Netherlands Cancer Registry (NCR) data were obtained from 1994 to 1998 (n=203). Detailed clinical data from two treatment protocols were compared: one for adults up to the age of 65 years (n=27) and one for children (n=80). All slides of the two clinical studies were centrally reviewed which included immunophenotyping and when necessary breakpoint analysis of MYC/8q24. Only cases with an unambiguous diagnosis of BL (classical and atypical BL) were accepted. The age distribution of BL-patients showed a bimodal distribution with a peak at the paediatric age and a steady increase after approximately 60 years of age. Most of the patients were males (89% for children and 78% for adults) and only male patients showed this bimodality. Children more often had extranodal disease (81% vs. 59%), whereas adults more often had nodal disease (89% vs. 53%). Based on epidemiology and clinical presentation, the concept that BL is one disease should be re-challenged.

Adolescent↗
PubMed2005

Increasing incidence and improved survival of cancer in children and young adults in Southern Netherlands, 1973-1999.

The aim of this study was to describe time trends in incidence, treatment and survival of children (0-14 years) and young adults (15-24 years) with cancer in an area in the Netherlands with a long registration period. Between 1973 and 1999, the population-based Eindhoven Cancer Registry (ECR) recorded 852 children and 1162 young adults with a malignancy and they were actively followed up until 1 July, 2003. The world standardised incidence rates for both children and young adults showed an increasing trend until 1997 and this flattened off afterwards (estimated annual percentage change [EAPC]=3.1%, P=0.66 for children and EAPC=3.6%, P=0.06 for young adults). Lymphomas in children and testicular malignancies and melanomas in young adults seemed to increase in particular. Better detection probably led to higher completeness for gliomas. Initial treatment for leukaemias and lymphomas in children has changed, protocols prescribe more chemotherapy and less radiotherapy. For all cancers combined, the 10-year survival rate for children significantly improved from 53% (95% confidence interval [95% CI] 45-61%) in 1973-1982 to 75% (95% CI 69-81%) in 1993-1999 (P-value<0.05). The 10-year survival rate for young adults significantly improved from 57% (95% CI 49-65%) to 81% (95% CI 77-85%) (P-value<0.05). We demonstrated significantly higher five-year survival rates for children with Hodgkin's disease (HD) and young adults with HD, non-seminoma or melanoma diagnosed in 1993-1999.

Adolescent↗
PubMed2005

Space-time clustering patterns of gliomas in The Netherlands suggest an infectious aetiology.

To test the hypothesis that infectious exposures may be involved in glioma aetiology, we have analysed space-time clustering and seasonal variation using population-based data from the South of The Netherlands between 1983 and 2001. Knox tests for space-time interactions between cases were applied, with spatial coordinates of the addresses at time of diagnosis, and with distance to the Nth nearest neighbour. Data were also analysed by a second order procedure based on K-functions. Tests for heterogeneity and Edwards' test for sinusoidal variation were applied to examine seasonal variation of incidence. There was statistically significant space-time clustering in the Eastern, but not in the Western part of the region. Clustering was only present in adults, particularly in less densely populated areas. There was no evidence for seasonal variation. The results support a role for infectious exposures in glioma aetiology that may act preferentially in certain geographical areas.

Adolescent↗
PubMed2005

Prevalence of colonisation with group B Streptococci in pregnant women of a multi-ethnic population in The Netherlands.

OBJECTIVE: This study was performed to determine the prevalence of GBS and to identify GBS colonisation risk factors in a multicultural population of pregnant women in The Netherlands. We calculated predictive values of cultures in pregnancy for intrapartum GBS carriage. STUDY DESIGN: From a total of 1702 women visiting several antenatal outpatient departments, rectovaginal swabs were collected at 35-37 weeks' gestation. In 761 women swabs were repeated at time of delivery. Carriage of GBS late in third trimester and at time of delivery was analysed in relation to age, parity, ethnicity and socio-economic status. RESULTS: Twenty-one percent was GBS carrier late in pregnancy. Compared to Europeans, African women were at a higher risk (29%, RR 1.4, CI 1.1-1.7) and Asian women were at lower risk (13%, RR 0.6, CI 0.4-0.8) for GBS carriage. No differences in colonisation were found between women with respect to age, parity or socio-economic background. Positive predictive value of GBS carriage at 35-37 weeks' gestation for carriage at time of parturition was 79% and negative predictive value was 93%. CONCLUSIONS: It was not possible to identify a group of pregnant women at high risk for GBS colonisation. Predictive values of antenatal genital group B streptococci cultures at 35-37 weeks' gestation for intrapartum GBS carriage are lower than previously reported.

Adolescent↗
PubMed2005

Emergency peripartum hysterectomy: A prospective study in The Netherlands.

OBJECTIVE: To determine the incidence, indication, association with caesarean section (CS) and outcome of emergency peripartum hysterectomy (EPH) in The Netherlands. STUDY DESIGN: All 100 Dutch obstetric departments were asked to participate in a prospective nationwide registration of EPH between 1 April 2002 and 1 April 2003. For every case, a form with questions about obstetrical history, current pregnancy and delivery, maternal and neonatal outcome was completed. RESULTS: Eighty-nine (89%) hospitals participated and registered in total 48 EPH. The estimated incidence of EPH is 0.33/1000 births. The main indication for EPH was placenta accreta (50%), followed by uterine atony (27%). There were two maternal deaths (4%). Severe maternal morbidity included: urinary tract injury 15%, relaparotomy 25%, transfusion >10 units red blood cells 67%, intensive care admission 77%. Both previous CS and CS in the index pregnancy were associated with a significant increased risk of EPH. The number of previous CS was related to an increased risk of placenta accreta, from 0.19% for one previous CS to 9.1% for four or more previous CS. CONCLUSION: Emergency peripartum hysterectomy is associated with a high incidence of maternal morbidity and a case fatality rate of 4%. It is significantly related to CS in index or previous pregnancy. Placenta accreta is the most common indication to perform a peripartum hysterectomy.

Adult↗
PubMed2005

In-hospital operative mortality of ruptured abdominal aortic aneurysm: a population-based analysis of 5593 patients in The Netherlands over a 10-year period.

OBJECTIVE: To determine the operative mortality of ruptured abdominal aortic aneurysm (RAAA) in The Netherlands. DESIGN: Retrospective population-based study of nation-wide in-hospital mortality of RAAA repair. METHODS: Data were obtained from a national registry for medical diagnosis and procedures. In-hospital mortality of RAAA repair, defined as death during hospital admission irrespective of the cause of death, was determined in the period 1991-2000. Variables of potential influence on in-hospital mortality, including age, gender, date of surgery and hospital type (0-399 beds, > or =400 beds or university hospitals) were studied in a multivariate analysis. RESULTS: The overall in-hospital mortality of RAAA repair in 5593 patients in the 10-year period was 41% (95% confidence interval: 40-42%). In the multivariate analysis, age and hospital type were the most important independent predictors for in-hospital mortality. Gender, year and season of surgery could not be identified as significant risk factors. CONCLUSIONS: Over a recent decade, in-hospital mortality of RAAA repair remained unchanged at 41%. Age and hospital class were the most important independent risk factors.

Age Factors↗
PubMed2005

Water quality dynamics and hydrology in nitrate loaded riparian zones in the Netherlands.

Riparian zones are known to function as buffers, reducing non-point source pollution from agricultural land to streams. In the Netherlands, riparian zones are subject to high nitrogen inputs. We combined hydrological, chemical and soil profile data with groundwater modelling to evaluate whether chronically N loaded riparian zones were still mitigating diffuse nitrate fluxes. Hydraulic parameters and water quality were monitored over 2 years in 50 piezometres in a forested and grassland riparian zone. Average nitrate loadings were high in the forested zone with 87 g NO(3)(-)-N m(-2) y(-1) and significantly lower in the grassland zone with 15 g NO(3)(-)-N m(-2) y(-1). Groundwater from a second aquifer diluted the nitrate loaded agricultural runoff. Biological N removal however occurred in both riparian zones, the grassland zone removed about 63% of the incoming nitrate load, whereas in the forested zone clear symptoms of saturation were visible and only 38% of the nitrate load was removed.

Ecosystem↗
PubMed2006

Response of epiphytic lichen communities to decreasing ammonia air concentrations in a moderately polluted area of The Netherlands.

Decreasing local ammonia air concentrations in a moderately polluted area in The Netherlands were accompanied by a rapid increase in nitrogen-sensitive species (acidophytes) and a decline of nitrogen-tolerant macrolichens (nitrophytes). This paper presents data on the relationship between nitrophyte abundance and species abundance for three ecological groups of epiphytic lichens: nitrophytes (positively correlated with ammonia), acidophytes (negatively correlated) and neutrophytes (which have an optimum at medium concentrations) and suggests ammonia dependent optimum curves for these groups. In this study neutrophytes were found to die-off massively at sites with a decrease of the ammonia air concentration over the period 1996-2003.

Air Pollutants↗
PubMed2005

Integrating dementia care in England and The Netherlands: four comparative local case studies.

The article presents a cross-national comparative study of the implementation of integrated dementia care at local level in England and The Netherlands. Four local case studies (Amsterdam Nieuw West, Leeds West, Maastricht, York) focus on the interaction between the respective national policies with local contexts and policy processes, in order to explain the variety of local outcomes regarding integrated dementia care. Localities are shown as entities with particular institutional contexts and histories (i.e. local configurations), which have specific impacts on processes of policy implementation within the respective national health and social care systems.

Community Mental Health Centers↗
PubMed2006

Perceived environmental determinants of physical activity and fruit and vegetable consumption among high and low socioeconomic groups in the Netherlands.

A focus group study was conducted to explore how perceptions of environmental influences on health behaviours pattern across socioeconomic groups in the Netherlands. Participants perceived their spouse's and friend's health behaviour and support as highly important. People from lower socioeconomic backgrounds reported poor neighbourhood aesthetics, safety concerns and poor access to facilities as barriers for being physically active, while easy accessibility to sports facilities was mentioned by high socioeconomic participants. The availability of fruits and vegetables at home was perceived as good by all particpants. Overall, lower socioeconomic groups expressed more price concerns. Possible pathways between socioeconomic status, environmental factors and health behaviours are represented in a framework, and they should be investigated further in longitudinal research.

Adult↗
PubMed2005

Gender-related differences in general practice preferences: longitudinal evidence from the Netherlands 1982-2001.

The proportion of female doctors is increasing. Yet, there is little evidence that demonstrates changing career preferences over a long period, nor do we know the long-term impact of changing male-female ratios in medicine. We explored this within the GP profession. By means of a longitudinal cohort study (postal questionnaires) among all graduated GPs in the Netherlands between 1982 and 2001 we explored trends in career preferences and investigated whether practice preferences of men and women differ over the years. Preference of becoming a GP has significantly decreased among men. GPs prefer group practice more than solo practice. Female doctors were more likely to prefer a small practice and to associate. Men prefer to take over an established practice. Main reasons to abstain from practicing as a GP for men were having found another job or not having found a practice according to their preferences. Main reasons for women were having decided for another job and family life. We conclude that male and female GPs select differently on practice setting. Preferences change through the years but tend to converge. Gender differences are likely due to the circumstance that career choices for men are more influenced by fluctuating labour markets, while female choices are more based on family circumstances. We expect that as more women will become a GP the demand for small group practices will increase. Also, as many female GPs abstain from practicing after having finished a vocational GP training program it will be essential to create work facilities to keep them available for the GP labour market.

Adult↗
PubMed2005

Quality based social insurance coverage and payment of the application of a high cost medical therapy: the case of spinal cord stimulation for chronic non-oncologic pain in The Netherlands.

This article describes a project in which a national continuous quality improvement system and a payment scheme were explicitly linked, while introducing an expensive treatment (Spinal Cord Stimulation (SCS)) in the social health insurance benefit package, in The Netherlands. By linking a national CQI system and a payment scheme in a conditional financing policy a steering instrument for future control of the quality of neuromodulation treatment through SCS is created.

Electric Stimulation Therapy↗
PubMed2004

Theory and practice of waiting time data as a performance indicator in health care. A case study from The Netherlands.

In this article we investigate the use of waiting time data as a performance indicator in health care in The Netherlands. We explain why the current publication of waiting time data fails to achieve one of the main goals: to have consumers and general practitioners act upon this information. The reason, we claim, is that even seemingly clear-cut, easily measurable and objective numbers such as waiting times need interpretation to become meaningful. Discussing four themes - the patient behind the number, the treatment behind the number, the strategy behind the number, and the specificity of the number - we will discuss just how deeply this need for interpretation affects the usability of 'waiting times' for purposes such as informing consumers. We will argue that this problem is due to not making a clear distinction between performance indicators for internal use and for external use. We conclude that the usefulness of the publication of waiting time data for consumers strongly increases when waiting times are guaranteed and related to treatment options like booking possibilities and other performance indicators such as patient satisfaction.

Data Collection↗
PubMed2006

Quality of consultation and the project 'Support and Consultation on Euthanasia in the Netherlands' (SCEN).

OBJECTIVE: Consultation of another physician is one of the requirements for prudent practice. The project 'Support and Consultation on Euthanasia in the Netherlands' (SCEN) is aimed at professionalizing consultation. The objective of this study is to assess whether the quality of consultation was improved through SCEN. METHOD: In four districts all general practitioners (GPs) received a pre-test questionnaire approximately six weeks before the start of the project in the period (n=1224, response 71%). In the period from April 2000 to December 2002, all GPs in districts in which SCEN had been implemented received a written post-test questionnaire one and a half years after the start of the project. This post-test questionnaire was returned by 60% of the GPs (n=3614). RESULTS: In SCEN consultations the attending physicians has no specific relation to the attending physician in 85% of consultations, while this is the case for 31% of other consultations. While before the start of SCEN in 71% of consultations six or seven of the seven criteria for good consultation were met, in SCEN consultations 83% of cases six or seven of these requirements were met. GPS who had consulted a SCEN physician generally were more positive about different aspects than those who consulted another consultant, such as considering the consultant to be able to make an independent judgement (totally agree 74% versus 59%). CONCLUSION: Although the quality of consultation appears to be high for both SCEN physicians and other consultants, the SCEN project further contributed to the quality of consultation. Since GPs attach importance to judgement of SCEN physician and have the intention to use it in future, and the quality of consultation stays high over time, this project is expected to maintain its value.

Euthanasia↗
PubMed2006

Is there a business case for quality in The Netherlands? A critical analysis of the recent reforms of the health care system.

Major reforms of the health insurance system and reimbursement systems for care providers are currently taking place in The Netherlands. These market-oriented health care reforms will transform the current central supply-driven system to a system of managed competition both among health care insurers and care providers. The reforms are not systematically linked to the discussions about quality of care and together with consumers who might be more interested in lower premiums; they offer almost no incentive for health care insurers and providers to steer on quality. Dutch policy makers should, therefore, be more explicit whether competition should take place on quality or price, and if the former is the case, additional incentives as part of the system reforms, are needed to create a business case for quality.

Health Care Reform↗
PubMed2006

Cryptosporidium and Giardia in commercial and non-commercial oysters (Crassostrea gigas) and water from the Oosterschelde, The Netherlands.

The intestinal parasites Cryptosporidium and Giardia cause gastro-enteritis in humans and can be transmitted via contaminated water. Oysters are filter feeders that have been demonstrated to accumulate pathogens such as Salmonella, Vibrio, norovirus and Cryptosporidium from contaminated water and cause foodborne infections. Oysters are economically important shellfish that are generally consumed raw. Commercial and non-commercial oysters (Crassostrea gigas) and oyster culture water from the Oosterschelde, The Netherlands, were examined for the presence of Cryptosporidium oocysts and Giardia cysts. Nine of 133 (6.7%) oysters from two non-commercial harvesting sites contained Cryptosporidium, Giardia or both. Six of 46 (13.0%) commercial oysters harboured Cryptosporidium or Giardia in their intestines. Data on the viability of (oo)cysts recovered from Oosterschelde oysters were not obtained, however viable (oo)cysts were detected in surface waters that enter the Oosterschelde oyster harvesting areas. The detection of Cryptosporidium and Giardia in oysters destined for human consumption has implications for public health only when human pathogenic (oo)cysts that have preserved infectivity during their stay in a marine environment are present. Our data suggest that consumption of raw oysters from the Oosterschelde may occasionally lead to cases of gastro-intestinal illness.

Animals↗