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PubMed2004

Time trends (1993-1997) and seasonal variation in body mass index and waist circumference in the Netherlands.

OBJECTIVE: To compare the time trend and seasonal variation in body mass index (BMI) and waist circumference. DESIGN: Continuous monitoring health survey carried out between 1 June 1993 and 31 May 1997. SUBJECTS: A total of 8,186 men and 9,638 women aged 20-59 y from three towns in the Netherlands. MEASUREMENTS: BMI and waist circumference. Obesity was defined as BMI > or =30 kg/m(2), abdominal obesity as waist circumference > or =102 cm for men and > or =88 cm for women. RESULTS: Levels of BMI and waist circumference increased between 1 June 1993 and 31 May 1997. Among women, the time trend in abdominal obesity was stronger than that in obesity. Further, levels of BMI and waist circumference were higher in winter than in summer seasons. The seasonal variation was larger for abdominal obesity than for obesity, among both men and women. CONCLUSIONS: The time trend in women and the seasonal differences in both men and women were stronger for abdominal obesity than for obesity. Surveys on BMI and waist circumference are only comparable if season is taken into account. Furthermore, the waist circumference is a more sensitive indicator of variations in lifestyle and body composition than is body mass index.

Abdomen↗
PubMed2006

Intra-national variation in trends in overweight and leisure time physical activities in The Netherlands since 1980: stratification according to sex, age and urbanisation degree.

OBJECTIVE: To investigate time trends in overweight and Leisure Time Physical Activities (LTPA) in The Netherlands since 1980. Intra-national differences were examined stratified for sex, age and urbanisation degree. SUBJECTS AND METHODS: We used a random sample of about 140,000 respondents aged 20-69 years from the Health Interview Survey (Nethhis) and subsequent Permanent Survey on Living Conditions (POLS). Self-reported data on weight and height and demographic characteristics were gathered through interviews (every year) and data on LTPA were collected by self-administered questionnaires (1990-1997, 2001-2004). Linear regression analysis was performed for trend analyses. RESULTS: During 1981-2004, mean body mass index (BMI) increased significantly by 1.0 kg/m(2) (average per year=0.05 kg/m(2)). Trends were similar across sex and different degrees of urbanisation, but varied across age groups. In 20-to 39-year-old women, mean BMI increased by 1.7 kg/m(2), which was more than in older age groups (P<or=0.05). With respect to LTPA, no clear trend was observed during 1990-1997 and 2001-2004. The (absence of) trends were similar across sex and urbanisation degrees, but varied across age groups. During 2001-2004, 20-to 39-year-old women spent approximately 150 min/week less on LTPA compared to older women, while this difference was smaller during 1990-1997. CONCLUSIONS: Mean BMI increased more in younger women, which is consistent with the observation that this group spent less time on LTPA during recent years. Although the overall increase in overweight could not be explained by trends in LTPA, the younger women should be considered as a target group for future physical activity interventions. The influence of the 'obesogenic environment' seems to be similar across different degrees of urbanisation.

Adult↗
PubMed2006

Factors associated with hypertension awareness, treatment and control among ethnic groups in Amsterdam, the Netherlands: the SUNSET study.

We sought to determine factors associated with hypertension awareness, pharmacological treatment and control among ethnic groups in Amsterdam, The Netherlands. We analysed data on hypertensive subjects (Dutch n=130, Hindustani n=115 and African Surinamese n=225). After adjustments for important covariates, hypertension awareness was more common in Dutch people with abdominal obesity and family history of hypertension (FHH). Abdominal obesity was also associated with higher level of awareness in African Surinamese. Female sex, FHH and recent physician (general practitioner (GP)) visit were associated with higher level of awareness in both African and Hindustani Surinamese. Among the Dutch, hypertension treatment was more common in those with abdominal obesity, FHH and GP visit. Among Hindustanis, female sex, abdominal obesity and GP visit were positively associated with treatment of hypertension. Old age, female sex, FHH and GP visit were positively associated, whereas smoking was negatively associated with lower treatment in African Surinamese. High education and more physical activity were associated with better blood pressure (BP) control, whereas obesity was associated with poor BP control among the Dutch. Among African Surinamese, female sex and FHH were associated with better BP control, whereas abdominal obesity was associated with poor BP control. Only old age was associated with poor BP control in Hindustanis. In conclusion, our findings indicate that more attention is needed in promoting awareness and treatment among those with lower hypertension risk (i.e., normal body weight people and those without FHH), those without recent GP visits in all ethnic groups and African and Hindustani Surinamese men and smokers. More effort is also needed in hypertension control among Dutch people with low education, obesity and inadequate physical activity, African Surinamese men and those without FHH and old Hindustani people.

Adult↗
PubMed2002

Physical disability in The Netherlands: prevalence, risk groups and time trends.

Physical disability represents an important health indicator of western populations. In this paper the prevalence of physical disabilities in The Netherlands is presented for four domains of disability-visual, hearing, mobility and activities of daily living (ADL) disability-with a focus on risk groups and time trends.Cross-sectional national health survey data (NetHIS) of 9 y, 1990-1998, presenting data on 62 352 persons of 16 y or over were used. All data were self-reported. About one-eighth of the research population had a physical disability, ie had at least major difficulty with one or more functions such as walking, seeing, hearing and washing. This figure increased from 1.7% in the age group of 16-24 y to 44.1% in the age group of 75 y or older. Risk groups were women, those living alone, those who were divorced or widowed and those with a low educational level. In the period 1990-1998, the prevalence did not change with the exception of the prevalence of mobility disability which dropped slightly with 0.2 percentage points per year due to decreasing prevalences among men. One conclusion is that the prevalence of disability is high and stable, and expected to increase in the future due to the ageing of the population.

Adolescent↗
PubMed2003

Pesticide concentrations in air and precipitation in the Netherlands.

Atmospheric deposition may be an important source of persistent organic compounds (POP) and pesticides for the Dutch coastal and inland waters. Current estimates of the atmospheric input have been made using atmospheric dispersion models. The uncertainty is however large. A project was defined with the aim to assess the input on the basis of measurements. For a period of two years (1999-2001) a monitoring network was operated. At eighteen stations, located across the whole country, air and precipitation samples were taken on a weekly and monthly basis. In these samples the concentrations of pesticides, PCB's and PAH's were determined. Up to 50 different pesticides were observed in precipitation and air. The concentration of 17 of these in precipitation exceeded the maximum permissible level for surface water and 22 exceeded the standard for drinking water of 100 ng l(-1). The input from the atmosphere to Dutch inland waters appeared to be as large as the input of pesticides by other sources such as spray drift. Model calculations were also carried out to identify the sources of these compounds. The occurrence of atrazine could be related to emissions outside the Netherlands.

Air Pollutants↗
PubMed2004

Rapid onset of comorbidity of common mental disorders: findings from the Netherlands Mental Health Survey and Incidence Study (NEMESIS).

OBJECTIVE: In a cohort of subjects with no history of psychopathology, we determined a 3-year incidence and the risk factors of comorbid and pure mood, anxiety and substance use disorders. METHOD: Data were obtained from the Netherlands Mental Health Survey and Incidence Study (NEMESIS), a longitudinal community study in which 4796 adults were interviewed in 1996, 1997 and 1999 with the Composite International Diagnostic Interview. RESULTS: Of 2869 cases at risk, 10.8% developed an incident disorder within 3 years, of which 16.1% was comorbid. Neuroticism, childhood trauma and parental psychiatric history were more strongly associated with comorbid than with pure disorders. No differences emerged in events occurring in the first year after baseline, but events in the period thereafter showed markedly stronger associations with comorbidity and pure mood disorder than with pure anxiety and substance use disorder. Functional disability was also linked more strongly to comorbidity and pure mood disorder. CONCLUSION: Clear risk factors exist for the rapid onset of comorbidity. Interventions are needed to prevent rapid comorbidity in subjects who recently developed a primary disorder.

Adult↗
PubMed2001

The DUEL study: a multi-center in vitro evaluation of linezolid compared with other antibiotics in the Netherlands.

OBJECTIVE: To evaluate bacterial susceptibility to linezolid in the Netherlands in comparison with other antibiotics. METHODS: Bacterial strains were isolated between September 1999 and January 2000 from patients presumed to require antibiotic treatment. The in vitro activity of 1226 strains from 34 participating laboratories was tested against linezolid, vancomycin, teicoplanin, oxacillin, penicillin, erythromycin, ampicillin and other antibiotics against enterococci, coagulase-negative staphylococci, Staphylococcus aureus and Streptococcus pneumoniae. Minimal inhibitory concentrations (MIC) were obtained with the E test on Mueller-Hinton agar: every laboratory included control strains. For vancomycin and teicoplanin only, brain-heart infusion agar and an inoculum of 2.0 McFarland was used for Staphylococcus aureus, coagulase-negative staphylococci and enterococci to support a better growth and clear recognition of hetero-resistant colonies. RESULTS: The values of MIC90 for linezolid were 1.5, 0.75, 0.75 and 1 mg/L for Staphylococcus aureus, coagulase-negative staphylococci, Streptococcus pneumoniae and enterococci, respectively. Six enterococcal strains with decreased susceptibility against vancomycin or teicoplanin were identified as Enterococcus faecium, E. gallinarum and E. casseliflavus (two strains each) and they were found to harbor vanA, vanC1 and vanC2/3 genes, respectively. Nine per cent of Streptococcus pneumoniae (an increase from 1% 4 years ago) showed decreased susceptibility to erythromycin, of both the ermB and mefE type; there was no cross-resistance with linezolid. Twelve coagulase-negative staphylococcal strains were resistant to teicoplanin. CONCLUSION: Linezolid is a promising drug in the treatment of infections caused by Gram-positive cocci. Cross-resistance with other antibiotics tested was not found.

Acetamides↗
PubMed1999

Increase in and stabilization of incidence and mortality of primary cutaneous malignant melanoma in Western Netherlands, 1980-95.

In summer 1989, a skin cancer campaign was organized in the coastal area of western Netherlands. In order to assess the impact of this and future campaigns on detection rates for melanomas of various thicknesses, a frame of reference for the epidemiology of cutaneous melanoma was established. We performed a retrospective investigation of all melanomas diagnosed in this region in the period 1980-95. A total of 3705 (2967 invasive and 738 in situ melanomas) cases was analysed. During the 1980s the age-adjusted incidence of invasive melanoma steadily increased (from five in 100,000 to 11 in 100,000 for men and from nine in 100,000 to 14 in 100,000 for women). Since 1988/89 the rate has remained stable for men and has increased only slightly among women. Detection rates for in situ melanomas followed the same pattern. Mortality rates remained largely unchanged for both sexes (European standard rates are about 2.6 in 100,000 for men and 2.2 in 100,000 for women). The median Breslow thickness decreased from 1.2 to 1.1 mm for men and from 1.1 to 0.8 mm for women. A marked increase occurred in the proportion of thin melanomas in comparison with intermediate and thick tumours, particularly among women. The female/male ratio declined in the period studied from 2.0 to 1.5. Directly after the campaign in 1989 a temporary increase occurred in the total number of melanomas diagnosed, largely due to more thin melanomas (</= 1.50 mm). These findings are discussed, particularly the possible implications of the most remarkable finding of this study: the stabilization of the incidence rates in recent years. We conclude, given the recent stabilization of rates and the relative favourable thickness, that screening or surveillance should be confined to high-risk groups.

Aged↗
PubMed2002

Impact of the introduction and training of total mesorectal excision on recurrence and survival in rectal cancer in The Netherlands.

BACKGROUND: Local control and survival following surgical treatment of rectal cancer have been improved by the introduction of total mesorectal excision (TME). The aim of this study was to determine the nationwide impact of the introduction and training of TME on recurrence and survival in rectal cancer. METHODS: Short- and long-term outcomes of a recently published trial of rectal cancer surgery (TME trial) were compared with results from an older trial (cancer recurrence and blood transfusion (CRAB) trial), in which conventional surgery was performed without quality control. Only patients who were operated on with curative intent and who did not receive neoadjuvant radiotherapy were studied. Differences in clinicopathological characteristics were corrected for by multivariate analysis. To ensure valid comparisons, only events that occurred within 2 years of operation were analysed with regard to long-term outcome. RESULTS: In the univariate analysis, a higher clinical anastomotic leak rate was found in patients following low anterior resection in the TME trial (P = 0.046), but this association was not significant in the multivariate analysis. The local recurrence rate decreased from 16 per cent in the CRAB trial to 9 per cent in the TME trial, and type of operation (conventional (CRAB trial) versus TME (TME trial)) was an independent predictor of local recurrence (P = 0.002). Type of operation was also an independent predictor of overall survival (P = 0.019); there was a higher survival rate in the TME trial. CONCLUSION: The introduction and training of TME has led to improved long-term outcome of patients with rectal cancer in the Netherlands.

Adult↗
PubMed2000

Early detection of speech and language delays in the Netherlands. The case for integrating primary and secondary prevention.

The early detection of speech and language delays has been an important feature of the child health services in the Netherlands for some 15 years. During this period ideas about both the purpose of screening and the methods themselves have changed considerably. There are four key outstanding issues: What is the best age to identify children? What screening measures are available? How can we detect speech and language delays in multilingual children? Which groups are best able to detect speech and language difficulties: parents, teachers, playgroup leaders, doctors, nurses, or speech and language therapists? These questions are influenced by social, demographic developments and an increase in the understanding of language delay. This article examines the Dutch solutions to these problems. The conclusion reached is that early language screening can only be part of the answer to early detection both because the available measures are not yet sufficiently accurate and because the growing group of multilingual children (e.g. in Amsterdam more than 50% of the children under the age of 4 years are multilingual) makes the application of specific measures at a population level unworkable. An alternative method is suggested, namely primary prevention by giving information and support to parents, playgroup leaders, doctors, etc.

Child↗
PubMed1997

Immunocytochemical staining of effusions; an external quality control study in The Netherlands.

In The Netherlands an external quality control study of immunocytochemical (IC) staining of effusions was initiated, consisting of three test rounds. The 12 participating laboratories received samples of malignant effusions (runs 1, 2 and 3), and five unstained control specimens prepared from the same material in runs 2 and 3. The laboratories used their own protocols to prepare and stain the samples ('in-house' specimens). Two persons viewed and scored the slides following preset criteria concerning number and morphology of diagnostic cells, background staining and staining specificity. Better scoring results were found for control specimens, compared with 'in-house' specimens, primarily caused by cell loss in the latter. This finding underlines the view that high quality IC needs well organized processing and staining procedures, and warrants external quality control systems.

Breast Neoplasms↗
PubMed2001

Anaesthetic management of the airway in The Netherlands: a postal survey.

BACKGROUND AND OBJECTIVE: A postal survey was conducted in order to investigate current practice in airway management amongst Dutch anaesthetists and to investigate the role of recent training and the role of an 'Access to the Airway' airway management course. METHODS: A questionnaire containing 27 questions was sent to all practising anaesthetists in The Netherlands. Questionnaires were returned anonymously and were analysed using the Pearson chi(2)-test (P < 0.05) with the SPSSR version 8.0 statistical software program. RESULTS: The response rate was 42%. Of the respondents, 78% claim often or always to assess the expected degree of difficulty in tracheal intubation as part of routine preoperative assessment. The American Society of Anesthesiologist's Difficult Airway Algorithm was used by 19% of respondents. A wide variety of airway management techniques is being used. In 36% of all general anaesthetics a laryngeal mask airway is used. In 1.1% of all general anaesthetics tracheal intubation is performed with the flexible fibrescope. CONCLUSIONS: Dutch anaesthetists, who commenced anaesthetic training after 1988, and those who attended the airway management course 'Access to the Airway' are significantly more likely to follow the American Society of Anesthesiologist's Difficult Airway Algorithm and to use adjunctive techniques for airway management.

Airway Obstruction↗
PubMed2001

Product choice and haemophilia treatment in the Netherlands.

In the Netherlands, there is a free choice of product for the treatment of haemophilia. Which product is chosen depends on the following considerations: medical, psychological, availability of clotting products, economics and government guidelines. Since the introduction of recombinant product in 1995, the percentage of Dutch patients treated with it has increased from 8% in 1995 to 20% in 1998. In 1999, an average of 48% of patients visiting the Van Creveldkliniek were treated with recombinant product. Children are more often treated with recombinant product than adults; 93% of children between 0 and 5 years, 53% of children between 6 and 20 years and 40% of adults are treated with recombinant product.

Adolescent↗
PubMed2003

An evaluation of the new home-care needs assessment policy in the Netherlands.

The aim of the present study was to describe the realisation of the new-style needs assessment in the Netherlands and how it is evaluated. Furthermore, judgements about the new way of assessing (chronic) patients' needs with respect to home care are presented. Data were gathered by means of a postal survey of all assessment agencies, home-care organisations and health insurers. The new-style assessment, as regulated by the Needs Assessment Decree, implies that home-care needs should be objectively assessed independently of the availability of care supply and integrally with other types of (long-term) care. This study shows that all the organisational structures required to realise these goals are present. However, according to factual and evaluative data, many practical aspects of these structures appear to be deficient. The national assessment forms, an instrument for gaining objectivity, are judged impracticable by half of the assessment agencies. Mandating arrangements threaten independent as well as integral needs assessment. Whether the new-style assessment is evaluated positively or negatively depends upon the type of organisation under study. On the one hand, assessment agencies are positive about their achievements. On the other, home-care organisations are generally negative about the functioning and advantages of the new style of needs assessment. Health insurers' opinions are in between those of assessment agencies and home-care organisations.

Chronic Disease↗
PubMed1993

Nurses' knowledge and opinions about the nursing research process in The Netherlands.

Nursing research is just gaining ground in The Netherlands, as it is in every European country. Therefore, this study had the purpose of discovering to what extent Dutch nurses in the clinical areas have acquired research-based knowledge since it was introduced into the country, in the 1970s. Questionnaires, which included provision for demographic data, were distributed to 110 nurses, comprising head nurses, recently qualified nurses and final-year student nurses. A 65% response was achieved and the findings revealed that nursing research as a concept was not new to the Dutch nurses. They claimed they had obtained their knowledge through nursing training, reading, conferences and other sources such as mass media. The head nurses were the most knowledgeable followed by the recently qualified nurses and then the student nurses. However, the respondents claimed that their knowledge was superficial. The need to extend nurses' knowledge through support and encouragement in relation to nursing research seminars and conferences is recommended.

Adult↗
PubMed1994

Patient satisfaction with home-birth care in The Netherlands.

One of the necessary elements in an obstetric system of home confinements is well-organized postnatal home care. In The Netherlands home care assistants assist midwives during home delivery, they care for the new mother as well as the newborn baby, instruct the family on infant health care and carry out household duties. The growing demand for postnatal home care is difficult to meet; this has resulted in a short supply of the most popular day care programme and a level of provision which does not result in adequate services. This study acknowledges the patient perspective of maternity home care in order to contribute to its organization. The majority (79%) of service centres were willing to participate. A total of 1812 (81%) women who recently gave birth to a child responded to a postal questionnaire addressing the quality of care according to five dimensions: availability, continuity, interpersonal relationships, outcome and assistant's expertise. Almost one-third of the new mothers rated the availability as inadequate while the assistant's expertise was rated positively. Postnatal maternity home care is personalized, small-scale, and recognizes childbirth as a life event. Furthermore, it is relatively inexpensive and contributes to the satisfaction of recipients.

Female↗
PubMed2001

Exploring the nursing minimum data set for The Netherlands using multidimensional scaling techniques.

RATIONALE: To fulfil the need for a systematic collection of nursing data that give insight in nursing care and its benefits and costs, a nursing minimum data set (NMDS) has been developed and validated for Dutch general hospitals. A NMDS provides data describing the diversity in patient populations and variability in nursing activities that can be analysed in various ways. AIM OF THE STUDY: To explore and compare the fundamental underlying dimensions describing patient problems and nursing interventions in Dutch general hospital wards. METHODS: Data of predominantly nominal and ordinal measurement level that were collected with the NMDS for The Netherlands on 15 Dutch hospital wards underwent two consecutive steps: first, they were transformed into metric data by means of RIDIT (relative to an identified distribution) analysis; secondly, they were analysed by means of multidimensional scaling. RESULTS: Multidimensional scaling techniques yielded a fairly good three-dimensional solution of the NMDS data. Hospital wards could be distinguished from each other on the basis of patient problems and nursing interventions most common on some wards but not on others. The core aspects underlying patient problems concerned dependency problems, life threatening problems and endogenous-exogenous problems, while discriminating nursing interventions were cure-care activities, internally-externally oriented activities and psychosocial-physical interventions. LIMITATIONS: Not all types of hospital wards were represented, which limits the representativeness of the results for Dutch general hospitals. Furthermore, the patient sample size over the 15 wards was relatively small. CONCLUSION: The constructs are consistent with NMDS findings in Belgium and findings from practice, which contributes to their content validity.

Data Interpretation, Statistical↗
PubMed1999

Incompetence in practice in health care in the Netherlands: report of a study.

Recent health legislation in the Netherlands makes specific provisions for patients who are not (fully) capable of acting reasonably in their own interests. If this legislation is actually to improve the legal position of incompetent people, it must be clear to whom these provisions apply. The description in modern legislation is that the person 'is regarded as not being able to make a reasonable assessment of his interests in the issue in question'. The law does not provide criteria according to which competence can be assessed in practice. In the present study, data on the competence assessment of 133 clients were collected by means of a poll held among those people who decide on competence in practice and a total of 485 assessors were polled. Client files were also examined with the intention of gaining insight into the carers' motivation to involve or exclude clients from the decision-making process. Finally, interviews were conducted with clients who have a mild or moderate intellectual disability. Large differences appeared to exist between the various assessors in the assessment of the general competence of clients. A general assessment of a client's competence is not sufficient in daily practice; therefore, partial competence was also assessed. Opinions about the partial competence of clients varied considerably among assessors. A ranking was compiled of discriminating characteristics in the qualification of competence or incompetence.

Adult↗