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B van Wijngaarden

Publications and source records attributed to B van Wijngaarden.

8 recordsLinked to original sources
PubMed2000

Caregiving in schizophrenia: development, internal consistency and reliability of the Involvement Evaluation Questionnaire--European Version. EPSILON Study 4. European Psychiatric Services: Inputs Linked to Outcome Domains and Needs.

BACKGROUND: In international research on the consequences of psychiatric illnesses for relatives of patients, the need for an internationally standardised measure has been identified. AIMS: To test the internal consistency and the test-retest reliability of the Involvement Evaluation Questionnaire (IEQ) in five European countries. METHOD: The IEQ was administered twice to a sample of relatives or friends of patients with an ICD-10 diagnosis of schizophrenia. Reliability was tested using Cronbach's alpha, intraclass correlation coefficients and standard error of measurement. Reliability estimates were tested between sites. RESULTS: Test sample sizes ranged from 30 to 90 across sites, and retest sample sizes ranged from 21 to 77. Cronbach's alpha values of IEQ sub-scales and sumscore were substantial at most sites; but at two, alpha values were moderate. Intraclass correlation coefficients were substantial to high at all sites. The standard errors of measurement differed across sites, indicating differences in performance. CONCLUSION: The reliability of the IEQ in five languages varies across sites, but is sufficiently high in at least four out of five.

Analysis of Variance↗
PubMed2000

Client Socio-Demographic and Service Receipt Inventory--European Version: development of an instrument for international research. EPSILON Study 5. European Psychiatric Services: Inputs Linked to Outcome Domains and Needs.

BACKGROUND: Cross-cultural comparison of mental health service utilisation and costs is complicated by the heterogeneity of service systems. For data to be locally meaningful yet internationally comparable, a carefully constructed approach to its collection is required. AIMS: To develop a research method and instrument for the collection of data on the service utilisation and related characteristics of people with mental disorders, as the basis for calculating the costs of care. METHOD: Various approaches to the collection of service use data and key stages of instrument development were identified in order to select the most appropriate methods. RESULTS: Based on previous work, and following translation and cross-cultural validation, an instrument was developed: the Client Socio-Demographic and Service Receipt Inventory--European Version (CSSRI-EU). This was subsequently administered to 404 people with schizophrenia across five countries. CONCLUSION: The CSSRI-EU provides a standardised yet adaptable method for collating service receipt and associated data alongside assessment of patient outcomes.

Adult↗
PubMed2000

Development, internal consistency and reliability of the Verona Service Satisfaction Scale--European Version. EPSILON Study 7. European Psychiatric Services: Inputs Linked to Outcome Domains and Needs.

BACKGROUND: Satisfaction with mental health services is an important quality and outcome variable. The Verona Service Satisfaction Scale (VSSS) is a well-established method for measuring service satisfaction. AIM: To report the development and reliability study of the European Version of the VSSS (VSSS-EU). METHOD: A sample of people with schizophrenia on the case-load of local mental health services in the five European participating countries was assessed. The VSSS-EU was administered at one site in each country at two points in time. Internal consistency and test-retest reliability were assessed and compared between the five sites. RESULTS: The alpha coefficient for the VSSS-EU total score in the pooled sample was 0.96 (95% CI 0.94-0.97) and ranged from 0.92 (95% CI 0.60-1.00) to 0.96 (95% CI 0.93-0.98) across the sites. Test-retest reliability for VSSS-EU total score, pooled over sites, was 0.82 (95% CI 0.78-0.85) and ranged from 0.73 (95% CI 0.6-0.86) to 0.93 (95% CI 0.89-0.97) across the sites. CONCLUSION: VSSS-EU is a reliable instrument for measuring service satisfaction in people with schizophrenia, for use in comparative cross-national research projects and in routine clinical practice in mental health services across Europe.

Adolescent↗
PubMed2000

Methodology of a multi-site reliability study. EPSILON Study 3. European Psychiatric Services: Inputs Linked to Outcome Domains and Needs.

BACKGROUND: The European Psychiatric Services: Inputs Linked to Outcome Domains and Needs (EPSILON) Study aims to produce standardised versions in five European languages of instruments measuring needs for care, family or caregiving burden, satisfaction with services, quality of life, and socio-demographic and service receipt. AIMS: To describe background, rationale and design of the reliability study, focusing on reliable instruments, reliability testing theory, a general reliability testing procedure and sample size requirements. METHOD: A strict protocol was developed, consisting of definitions of the specific reliability measures used, the statistical methods used to assess these reliability coefficients, the development of statistical programmes to make inter-centre reliability comparisons, criteria for good reliability, and a general format for the reliability analysis. CONCLUSION: The reliability analyses are based on classical test theory. Reliability measures used are Cronbach's alpha, Cohen's kappa and the intraclass correlation coefficient. Intersite comparisons were extended with a comparison of the standard error of measurement. Criteria for good reliability may need to be adapted for this type of study. The consequences of low reliability, and reliability differing between sites, must be considered before pooling data.

Adult↗
PubMed1998

Family caregiving in schizophrenia: domains and distress.

This article focuses on (1) the dimensionality of the caregiving concept; (2) the relation between the identified caregiving dimensions and characteristics of the patient, the caregiver, and their relationship; and (3) the relation between caregiving dimensions and caregiver distress. Findings are based on data from 480 members of the Dutch family organization for patients with schizophrenia/chronic psychosis who completed (1) the Involvement Evaluation Questionnaire (IEQ), which assesses general information (e.g., household characteristics), caregiving, help seeking, coping and distress, and (2) a questionnaire comprising questions on onset and course of the patient's disorder and symptoms characteristic of schizophrenic disorders. Four caregiving domains were found: tension, supervision, worrying, and urging. These domains were strongly related to the patient's symptomatology, contact between the relative and the patient's mental health professional, and the number of hours of mutual contact between the patient and the relative. The connection between patient, caregiver, and relationship variables and the caregivers' distress could be explained substantially by the overall caregiving score. Our findings suggest that caregiving tasks and problems may be diminished and related distress lowered by reducing the patient's symptomatology, increasing relatives' coping capacities, and decreasing the number of contact hours. If distress is reduced, relatives may use less psychotropic medication and may visit their general practitioner less often.

Adaptation, Psychological↗
PubMed1995

A survey of an organization for families of patients with serious mental illness in The Netherlands.

OBJECTIVES: Members of Ypsilon, a Dutch family organization for relatives of patients with schizophrenia or chronic psychosis, were surveyed to determine whether patients whose families were involved in the organization were representative of all patients with schizophrenia in the Netherlands and whether Ypsilon was similar to family organizations in other countries, to learn about members' experience of the course of their relatives' illness, to determine the kinds of mental health care received by the patients, and to discern members' opinions of that care. METHODS: An extended version of the Involvement Evaluation Questionnaire, which measures consequences of psychiatric disorders for patients' relatives, was sent to a random sample of 1,000 Ypsilon members. The response rate was 70 percent. RESULTS: Members of Ypsilon are mainly older mothers of young male patients with a long history of schizophrenia. The patients as a group appeared to be more severely ill than the overall population of patients with schizophrenia in the Netherlands. Many respondents reported dissatisfaction with the quality of mental health care for their relative, particularly with their lack of access to treatment professionals, lack of information about their relative's illness, and lack of family involvement in treatment planning. CONCLUSIONS: Members of Ypsilon represent patients with severe mental illness who do not benefit sufficiently from treatment. Members want a greater role in treatment planning and more information and support from mental health care professionals. Members of Ypsilon and of family organizations in other countries have much in common, even though the extent of deinstitutionalization varies between countries.

Adult↗
PubMed1993

The Utrecht comparative study on psychiatric day treatment and inpatient treatment.

A prospective randomized comparative study on the effectiveness of psychiatric day treatment and inpatient treatment is described. The target population consisted of patients who would normally have been admitted to an open inpatient unit. Outcome indicators were psychopathology, social functioning, interpersonal functioning, social network and social support. No differences in effectiveness were found between the two forms of treatment, although more patients accepted and completed day treatment, and day patients were more satisfied. Although a uniform treatment programme for both departments was established, distinct differences did arise in the actual treatment programme offered to the patients. The duration of treatment for the day patients was considerably longer, and the intensity of treatment was more low-key. No striking differences in the amount of medication prescribed and in the occurrence of crisis situations (including suicide) were found. Day treatment turns out to be a realistic alternative for 33% of all patients admitted for inpatient treatment. It was not possible to predict which type of patient in particular is suitable for day treatment.

Adult↗