[Embrace, a model for integrated elderly care]. / SamenOud, een model voor geïntegreerde ouderenzorg: studieprotocol van een gerandomiseerde studie naar de effectiviteit betreffende patiëntuitkomsten, kwaliteit van zorg, zorggebruik en kosten.

UNLABELLED: Ongoing growth in health care expenditures and changing patterns in the demand for health care challenge societies worldwide. The Chronic Care Model (CCM), combined with classification for care needs based on Kaiser Permanente (KP) Triangle, may offer a suitable framework for change. The aim of the present study is to investigate the effectiveness of Embrace, a population-based model for integrated elderly care, regarding patient outcomes, service use, costs, and quality of care. METHODS: The CCM and the KP Triangle were translated to the Dutch setting and adapted to the full elderly population living in the community. A randomized controlled trial with balanced allocation was designed to test the effectiveness of Embrace. Eligible elderly persons are 75 years and older and enrolled with one of the participating general practitioner practices. Based on scores on the INTERMED-Elderly Self-Assessment and Groningen Frailty Indicator, participants will be stratified into one of three strata: (A) robust; (B) frail; and (C) complex care needs. Next, participants will be randomized per stratum to Embrace or care as usual. Embrace encompasses an Elderly Care Team per general practitioner practice, an Electronic Elderly Record System, decision support instruments, and a self-management support and prevention program - combined with care and support intensity levels increasing from stratum A to stratum C. Primary outcome variables are patient outcomes, service use, costs, and quality of care. Data will be collected at baseline, twelve months after starting date, and during the intervention period. DISCUSSION: This study could provide evidence for the effectiveness of Embrace.

Effective and efficient learning in the operating theater with intraoperative video-enhanced surgical procedure training.

BACKGROUND: INtraoperative Video Enhanced Surgical procedure Training (INVEST) is a new training method designed to improve the transition from basic skills training in a skills lab to procedural training in the operating theater. Traditionally, the master-apprentice model (MAM) is used for procedural training in the operating theater, but this model lacks uniformity and efficiency at the beginning of the learning curve. This study was designed to investigate the effectiveness and efficiency of INVEST compared to MAM. METHODS: Ten surgical residents with no laparoscopic experience were recruited for a laparoscopic cholecystectomy training curriculum either by the MAM or with INVEST. After a uniform course in basic laparoscopic skills, each trainee performed six cholecystectomies that were digitally recorded. For 14 steps of the procedure, an observer who was blinded for the type of training determined whether the step was performed entirely by the trainee (2 points), partially by the trainee (1 point), or by the supervisor (0 points). Time measurements revealed the total procedure time and the amount of effective procedure time during which the trainee acted as the operating surgeon. Results were compared between both groups. RESULTS: Trainees in the INVEST group were awarded statistically significant more points (115.8 vs. 70.2; p < 0.001) and performed more steps without the interference of the supervisor (46.6 vs. 18.8; p < 0.001). Total procedure time was not lengthened by INVEST, and the part performed by trainees was significantly larger (69.9 vs. 54.1 %; p = 0.004). CONCLUSIONS: INVEST enhances effectiveness and training efficiency for procedural training inside the operating theater without compromising operating theater time efficiency.

Change in disability profile and quality of life in multiple sclerosis patients: a five-year longitudinal study using the Multiple Sclerosis Impact Profile (MSIP).

BACKGROUND: Evidence on the progress of disease severity in multiple sclerosis (MS) is generally limited in scope. OBJECTIVES: To examine the course of a broad spectrum of MS-related disabilities and quality of life (QOL) in relation to disease severity, and responsiveness of the Multiple Sclerosis Impact Profile (MSIP). METHODS: The mortality rate was calculated after checking the national population register for vital status of the initial cohort. We performed a longitudinal study among 245 patients with MS attending the Groningen MS Center in the Netherlands. We assessed these patients in 2004 and 2009 using a postal survey including the MSIP to evaluate disabilities, the World Health Organization Quality of Life-Abbreviation version (WHOQOL-BREF) to evaluate QOL, and the ambulation question of the Expanded Disability Status Scale (EDSS) to evaluate disease severity. Responsiveness of the MSIP was estimated using standardized response mean (SRM). RESULTS: Increase of disability in the MSIP disability domains and loss of QOL were most prevalent and pronounced in patients with EDSS 0 to < 4.5 in 2004. MSIP and QOL scores were remarkably stable in the higher disease severity groups. Mortality rates were highest (24%) in patients with EDSS ≥ 7 to < 10 in 2004. SRM indices for the MSIP ranged between 0.26 and 0.56. CONCLUSIONS: Prominent increases in multiple aspects of disability and loss of QOL occur especially in the early stages in MS. Health care interventions may lead to health and QOL gains, in particular when offered to patients in the first stage of the MS process. Responsiveness was sufficient for nine of the 11 MSIP domains.

[Enlargement of the gingiva during treatment with fixed orthodontic appliances]. / Zwelling van de gingiva bij orthodontische behandeling met volledig vaste apparatuur.

Gingival enlargement commonly occurs in patients treated with fixed orthodontic appliances. In a study, 25 patients were monitored during and after treatment with fixed orthodontic appliances. The extent of the enlargement of the gingiva was determined by means of intra-oral photographs made shortly before the placement of the appliances, immediately after their removal and at 3 and 6 months after the appliances had been removed. The enlargement of the gingival was determined using a Visual Analogue Scale. During orthodontic treatment the average degree of gingival enlargement increased significantly. After removal of the appliances a significant decrease in the degree of gingival enlargement occurred. Within 3 months after debonding the gingival enlargement was at the same level as before starting the orthodontic treatment. The conclusion was that the enlargement of the gingiva that takes place during treatment with fixed orthodontic appliances was reversible.

Mastery, functional disability and perceived health status in patients with multiple sclerosis.

BACKGROUND AND PURPOSE: Multiple sclerosis (MS) is a chronic disease that is difficult to predict and to cope with. Mastery refers to the extent to which patients see themselves as being in control of the forces that affect their lives. It may play an important role in perceived health status and well-being. The purpose of this study was to clarify whether mastery is associated with functional disability and perceived health status in MS patients and how such an association might function. METHODS: Two hundred and three MS patients completed the Short-Form-36 Health Survey as well as the Pearlin-Schooler Mastery Scale. Functional disability was assessed using the Kurtzke Expanded Disability Status Scale. Hierarchical multiple linear regression analyses were performed on the data from two MS age groups: <45 and > or =45 years of age. RESULTS: Functional disability was negatively associated with perceived physical health status in both age groups and with perceived mental health status in younger age group. Mastery was positively associated with perceived health status in older age group. DISCUSSION: The findings confirm that mastery might be helpful for older MS patients. Education strategies for MS patients aimed at personal empowerment for the maintaining of physical and mental well-being may be important.

Impact of fatigue on quality of life in patients with Parkinson's disease.

BACKGROUND AND PURPOSE: Fatigue is frequent and important in the lives of Parkinson's disease (PD) patients. It is multidimensional, with physical and mental aspects. The aim of our study was to explore the impact of fatigue on quality of life (QoL) for PD patients. METHODS: The sample consisted of 175 PD patients from Eastern Slovakia (52% males, mean age 68.2 +/- 9.2, mean disease duration 7.4 +/- 6.7). The Multidimensional Fatigue Inventory (five dimensions), the Parkinson's Disease Quality of Life Questionnaire (eight dimensions) and the Unified Parkinson's Disease Rating Scale were used. Demographic data were obtained in a structured interview. Fisher's exact test, t-test, and multiple linear regression analysis were used. RESULTS: Different aspects of fatigue selectively explained different domains of QoL - physical dimensions of fatigue were connected with Mobility and Activities of daily living; mental fatigue dimensions affected Cognition, Emotional well-being, Communication and Activities of daily living; general fatigue was related to Bodily discomfort. The explained variances varied from 5% (Social support) to 65% (Activities of daily living). CONCLUSION: Fatigue combined with worse functional status appears to be a significant contributor to poor quality of life. Its multidimensional construct can be used to develop strategies for improving specific aspects of fatigue to improve QoL for PD patients.

The additive effect of co-occurring anxiety and depression on health status, quality of life and coping strategies in help-seeking tinnitus sufferers.

OBJECTIVE: Evaluating the effect of anxiety and depression on clinical measures of general health, tinnitus-specific quality of life, and coping abilities. DESIGN: Two hundred sixty-five chronic, subjective tinnitus sufferers were divided into four psychological symptom groups according to cut-off scores on anxiety and depression subscales of the Hospital Anxiety and Depression Scale: (1) no-symptoms, (2) anxiety-only, (3) depression-only, and (4) anxiety-plus-depression. General health-related quality of life (SF-36), tinnitus-specific quality of life (tinnitus reaction questionnaire and tinnitus handicap inventory), and coping abilities (tinnitus coping style questionnaire) were assessed and analyzed across these four psychological symptom groups, which did not differ on age, gender, marital, and working status. RESULTS: Statistically significant and clinically relevant differences on general health-related and tinnitus-specific quality of life and coping abilities were identified when comparing anxiety-plus-depression subgroup with the subgroups anxiety-only, depression-only, or no-symptoms. Highest associations were seen between the anxiety-plus-depression subgroup and impaired quality of life and maladaptive coping. CONCLUSIONS: Our results demonstrate the additive effect of both anxiety and depression in impairing general health-related and tinnitus-specific quality of life and application of coping strategies, and reiterate the need for investigating both symptoms in the clinical evaluation of tinnitus patients.

EuroSCORE predicts poor health-related physical functioning six month postcoronary artery bypass graft surgery.

AIM: The objectives of this study are to test whether the European system of cardiac-operative risk evaluation score (EuroSCORE) is associated with preoperative health-related quality of life (HRQoL), and whether it is a predictor of mental and physical health-related quality of life six months after coronary artery bypass grafting (CABG). METHODS: A longitudinal observational study was carried out among 181 patients who underwent CABG. Physical and mental domains of quality of life were measured using SF-36 and risk stratification was estimated using the EuroSCORE. A post hoc test (with Bonferroni correction) was used to determine whether EuroSCORE was associated with preoperative HRQoL, LOS and postoperative rate of complications. Hierarchical regression analysis was performed to explore the associations between EuroSCORE, postoperative events and postoperative HRQoL. RESULTS: EuroSCORE is associated with physical functioning before and after CABG and a higher EuroSCORE is a predictor of poor physical functioning and not a predictor of the mental domains of quality of life, while smoking predicted bodily pain after CABG. Furthermore, readmission within six weeks after discharge was a predictor of poor physical functioning, physical role and general health. Moreover, post hoc tests showed statistically significant and clinically relevant differences in physical functioning between low-risk and high-risk EuroSCORE classes, and between medium and high classes at baseline and six months after CABG. High-risk patients had more perioperative complications and longer lengths of stay, as compared to low-risk patients. CONCLUSION: EuroSCORE is a predictor of poor self-reported physical functioning six months after CABG and is not a predictor of mental functioning.

Stability and relative validity of the Multiple Sclerosis Impact Profile (MSIP).

OBJECTIVE: To examine the stability and relative validity of the Multiple Sclerosis Impact Profile (MSIP) in criterion-related groups. The MSIP is a disease-targeted health impact measure based on a selection of International Classification of Functioning, Disability and Health (ICF) aspects selected by 98 patients and medical and non-medical health professionals. METHOD: Data were obtained from a postal survey of 377 individuals with Multiple Sclerosis (MS) attending the MS centre of the University Medical Center Groningen (UH) and 153 subjects from the MS patients' association. Stability was tested with t-tests for paired samples and intraclass correlation coefficients for repeated measures in a sample of 251 individuals from the UH sample. The Relative Validity (RV) was estimated using the Short Form Questionnaire (SF-36), the World Health Organization Quality of Life-BREF (WHOQOL-BREF), the Disability and Impact Profile (DIP), the Impact on Autonomy Questionnaire (IPAQ) and the Groningen Activity Restriction Scale (GARS). RESULTS: These indicate that the MSIP is a stable measure in time. MSIP scales showed satisfactory and strong RV. In general, the domain-specific activities and participation measures (GARS and IPAQ) performed equally or slightly better than the comparable MSIP-scales, while the MSIP performed better than the multidimensional health impact measures (SF-36, DIP and WHOQOL-BREF). CONCLUSION: The MSIP demonstrated good stability and RV compared to generic health impact and domain-specific measures.

[Health-related fitness of sedentary elderly in the Netherlands]. / Gezondheidsgerelateerde fitheid van sedentaire senioren in Nederland.

The assessment of fitness is a component of a national project aimed at the enhancement of physical avtivity among sedentary older adults, aged 55-65 year in the Netherlands. Deterioration in physical functioning may be improved through an exercise programme. Research showed that enhancement of physical activity results in improved fitness, increased functional ability and health-related quality of life. Scientific results of the association between exercise and physical fitness in older adults is not sufficiently evidence-based in the Netherlands. In order to support health policy interventions 5.584 fitness tests of sedentary older adults were analyzed. The fitness was assessed by the Groninger Fitnesstest for Elderly (GFE). The analysis of physical fitness in sedentary older adults showed a lower fitness status among the age group 55-65 of age and women. Health risk factors such as overweight and having a chronic disease explained 88% of the variance between a low fitness and a high fitness profile.

An international comparative study on the reliability and validity of the attitudes towards aggression scale.

One of the factors known to be associated with the management of patient aggression is the attitude of staff members towards the aggressive behaviour of patients. The construct validity of an instrument measuring the attitudes of staff towards inpatient aggression in psychiatry was evaluated in this international multi-centre study. Factor analysis and simultaneous component analysis were performed with data from a convenience sample of 1769 psychiatric nurses working in psychiatric hospitals and student nurses from nursing schools. The samples were recruited by fellow researchers in their home country. The original 32-item version (POAS) was reduced to 18 items comprising five attitude scales with solid psychometric properties. The types of attitudes were labelled offensive, communicative, destructive, protective and intrusive. The format of the correlations between the types of attitudes suggested the existence of two basic underlying divergent domains in the scale. The 'communication' and 'protection' scale components on the one hand, and the 'offence', 'destruction' and 'intrusion' components on the other. The five types of attitude proved to be invariant across samples from five European countries. The Aggression Scale (ATAS) is a reliable and valid measure that will enable researchers to perform international comparative research on attitudes and aggression.

Cryopreservation of porcine fetal ventral mesencephalic tissue for intrastriatal transplantation in Parkinson's disease.

In this study we examined the efficacy of cryopreserving porcine fetal mesencephalic tissue. After microscopical dissection of the ventral mesencephalon (VM) from E28 pig fetuses, the collection of explants was randomly divided into two equal parts. One part was directly prepared as cell suspension. The other part was stored in hibernation medium for less than 2 days and then cryopreserved as tissue fragments and stored in liquid nitrogen. After 2 weeks up to 1 year, these tissue fragments were thawed and processed as cell suspensions. After cell counting and assessment of viability, these cell suspensions were used to examine survival, morphology, and neurite formation of the dopaminergic neurons in cell culture as well as after intrastriatal implantation in 6-OHDA-lesioned rats. Comparison of cryopreserved with fresh VM cell suspensions showed no significant difference with respect to cell viability and the average number of living cells per VM explant. The morphology of cultured dopaminergic neurons after cryopreservation was identical to that of fresh cells. After intrastriatal implantation, survival and outgrowth of cryopreserved dopaminergic neurons as well as functional effects did not differ from those of fresh cells. In conclusion, the cryopreservation technique we used proves to be a reliably effective method for storing porcine fetal VM tissue.

Cost analysis of the treatment of severe spinal spasticity with a continuous intrathecal baclofen infusion system.

OBJECTIVE: The purpose of our study was to analyse and evaluate the costs of continuous intrathecal baclofen administration as a modality in the treatment of severe spasticity in the Netherlands. DESIGN: A cost analysis was conducted as part of a prospective, multicentre, multidisciplinary, randomised and placebo-controlled clinical trial. The study covered the period from December 1991 to September 1995. The data on medical consumption and costs were collected over a 3-year period from different sources: administrative databases of health insurance companies, hospital registries and a patient survey. These data were structured by means of a flowchart analysis of the medical decision-making by specialists and general practitioners (GPs). They included data on in- and outpatient care, home care and care in nursing homes. The cost analysis was conducted using data from 18 patients included in the trial and from 15 so-called 'match' patients. The latter group are patients with comparable diseases leading to spasticity and living in comparable circumstances. Next to absolute costs (direct and indirect) of care and treatment for the 2 groups of patients, cost differences between the 2 groups were considered (differential cost analysis). SETTING: Per patient cost data, collected prospectively for 2 years during the phase of clinical evaluation, and retrospectively 1 year before implantation. The data were collected on patients from in- and outpatient care, home care and care in nursing home settings. PATIENTS AND PARTICIPANTS: The trial patients (8 men) had a mean age of 46 years; 11 patients had multiple sclerosis and 7 patients had spinal cord injuries. The match patients (7 men) had a mean age of 48 years; 9 patients had multiple sclerosis and 6 patients had spinal cord injuries. INTERVENTIONS: Trial patients were treated with a subcutaneously implanted programmable continuous infusion pump (SynchroMed, Medtronic), filled with baclofen (a muscle relaxant) to treat patients with chronic disabling spasticity who did not respond to a maximum dose of oral baclofen, dantrolene and tizanidine. MAIN OUTCOME MEASURES AND RESULTS: An analysis of hospital stay between both groups showed a significant difference during the implantation year. The average number of hospital days per patient in the year in the treated group was 31.5 days and in the match group was 18.7 days. Significant cost differences between both groups in the year that started with pump implantation and the following year can be attributed mostly to the costs of implantation of the pump and related hospitalisation days. The total costs of patient selection, testing, implanting the pump and follow-up amounted to $US28,473 for the first year. Savings must be taken into consideration as well. The savings of direct costs were due to withdrawal of oral medication (estimated annual total of between $US1950 and $US2800 per patient). Indirect savings on employment and nursing home costs, amounted annually to $US1047 and $US5814, respectively. Scenarios make it possible to consider policy consequences. The case of 'extending' the indications for this treatment to a larger population has been calculated and visualised. CONCLUSIONS: The costs of the therapy (continuous intrathecal infusion of baclofen) can be attributed mostly to implantation of the pump and related hospitalisation days. Savings originated from withdrawal of oral medication, job preservation and avoidance or delay of admission to a nursing home.

Increased vital exhaustion among type-D patients with ischemic heart disease.

OBJECTIVE: To investigate the prevalence of the "distressed personality" (type-D) in cardiac patients and to explore the relationships between type-D, gender, vital exhaustion and angina pectoris. METHODS: A questionnaire was completed by 171 patients scheduled for coronary angiography (CAG) at baseline and again at 6 weeks following implementation of treatment with invasive procedures or medication. RESULTS: Women were more vitally exhausted at baseline and more likely to be classified as type-D. Type-D patients scored higher on vital exhaustion independent of all other variables. Angina was related to vital exhaustion, but improvement in angina following intervention was not associated with improvement in vital exhaustion scores. CONCLUSION: Although medical interventions reduced angina, a concomitant decrease in vital exhaustion scores was not found. It is suggested that type-D may explain gender differences on distress. Clinical implications are discussed, including the importance of including personality factors in future research, as they have been shown to have independent prognostic value.

How to validate clinically important change in health-related functional status. Is the magnitude of the effect size consistently related to magnitude of change as indicated by a global question rating?

Some clinical trials perform repeated measurement over time and estimate clinically relevant change in an instrument's score with global ratings of perceived change or so-called transition questions. The conceptual and methodological difficulties in estimating the magnitude of clinically relevant change over time in health-related functional status (HRFS) are discussed. This paper investigates the concordance between the amount of serially assessed change with effect size estimates (the researcher's perspective) and global ratings of perceived change (the patient's perspective). A total of 217 patients who were scheduled for diagnostic examination were included, and the Minnesota Living with Heart Failure Questionnaire, extended with MOS-20 items, was assessed before and after medical intervention (percutaneous transluminal coronary angioplasty, coronary artery bypass grafting or pharmaco-therapy). Global questions were applied to assess perceived change over time for every item from domains of physical and emotional functioning and used as the external criterion of relevant change in the analysis of items. Global questions corresponding with overall change in these domains were used in the comparison of change in physical and emotional functioning scales. Two effect size indices were used: (i) ES (mean change/SDpooled) and (ii) ES (mean change/SDchange). A method is described to calculate a value indicating the extent of discordance between the researcher's interpretation of magnitude of change and the external criterion (the patient's perspective). Findings suggest that effect size (ES) (mean change/SDpooled) was in keeping with the magnitude of change indicated by patients' judgements, or their category of subjective meaning, for all scales. Furthermore, in cases in which the magnitude of change estimated with the SRM (mean change/SDchange) was not confirmed empirically by the external criterion ratings, the discordance could be interpreted as a trivial discordance.

Validation of the ICF core set for neuromuscular diseases.

BACKGROUND: Understanding of the consequences of a neuromuscular disease (NMD) can improve when a valid sample of disease-specific categories based on the International Classification of Functioning, Disabilities, and Health (ICF) is available. OBJECTIVE: To examine the content validity of the initial ICF Core Set for neuromuscular diseases (NMDs). The initial ICF Core Set was developed for three chronic neurological diseases. DESIGN: A qualitative method. METHODS: To examine the content validity of the initial ICF Core Set for NMD, concepts in established disease-specific health-related Quality of Life Questionnaires (HRQOL) were compared with ICF categories. Next, the selected ICF categories were linked to the ICF categories in the initial ICF Core Set. RESULTS: All concepts in the HRQOL questionnaires, except one body function concept, were covered by the initial ICF Core Set. However, the NMD Core Set reflects a broader scope concerning health problems than the concepts in the HRQOL questionnaires do, especially concerning the "Participation" and "Environmental Factors" components. CONCLUSION: The NMD Core Set, as well as a measurement based on this Core Set, can contribute to a better understanding of the consequences of NMDs and can also serve as a basis for clinical practice, research, social security systems, and educational programs. CLINICAL REHABILITATION IMPACT: The newly developed NMD Core Set can be a basis for enhancing the development of rehabilitation interventions and improving overall health care for patients with a NMD.

Roma coronary heart disease patients have more medical risk factors and greater severity of coronary heart disease than non-Roma.

OBJECTIVES: Coronary heart disease (CHD) is the most common cause of mortality and morbidity world-wide. Evidence on ethnic differences between the Roma and non-Roma regarding medical risk factors is scarce. The aim of this study was to assess differences in medical risk factors and the severity of CHD in Roma compared with non-Roma CHD patients, adjusted for gender, age and education. METHODS: Six hundred seventy four patients were included in this cross-sectional study (132 Roma, 542 non-Roma). Data on medical risk factors, symptoms, medication and severity of CHD were obtained from medical records. After matching Roma and non-Roma according to education, linear and logistic regression analyses with adjustments for gender and age were used. RESULTS: Compared with non-Roma, Roma patients had significantly more risk factors and more severe types of CHD. They were treated less frequently with statins and beta-blockers, were more frequently left on pharmacotherapy and surgically revascularised. These differences remained after controlling for education, gender and age. CONCLUSIONS: Roma CHD patients have a worse risk profile at entry of care and seem to be undertreated compared with non-Roma CHD patients.

The impact of disabilities on quality of life in people with multiple sclerosis.

OBJECTIVE: People with Multiple Sclerosis (MS) experience lower levels of quality of life (QOL) than people from the general population. We examined the relative impact of MS-related disabilities on QOL. METHOD: Data were obtained from a sample of 530 patients who completed the Multiple Sclerosis Impact Profile (MSIP), a disability measure based on the International Classification of Functioning, Disabilities and Health (ICF) and two generic health-related QOL measures, the Medical Outcome study Short Form Questionnaire (SF-36) and the World Health Organization Quality Of Life-BREF (WHOQOL-BREF). The impact of disabilities on QOL was estimated using hierarchical multiple regression analyses after controlling for the clinical course of MS. RESULTS: Disabilities contributed to a unique and substantial extent to QOL variance. "Impairments in mental functions" was the most important QOL predictor. "Fatigue" showed the highest prevalence and severity scores, while the impact on QOL was limited. The estimated impact on QOL appeared to be dependent on the applied QOL measure: the WHOQOL-BREF was sensitive to disabilities related to all four ICF components, while the SF-36 was only sensitive to disabilities belonging to the 'body functions' and 'activities' components. CONCLUSION: Treatment programmes should target impairments in cognitive functioning, emotional functioning and sleep. Interventions are best evaluated using the WHOQOL-BREF.

The criterion-related validity of the Northwick Park Dependency Score as a generic nursing dependency instrument for different rehabilitation patient groups.

OBJECTIVE: To investigate the criterion or concurrent validity of the Northwick Park Dependency Score (NPDS) for determining nursing dependence in different rehabilitation groups, with the Barthel Index (BI) and the Care Dependency Scale (CDS). DESIGN: Cross-sectional study. SETTING: Centre for Rehabilitation of the University Medical Center Groningen, The Netherlands. SUBJECTS: Patients after stroke, spinal cord injury, multitrauma, head injury, amputation, rheumatoid arthritis, diabetes mellitus, lung diseases, tuberculosis and coronary artery disease. One hundred and fifty-four patients were included. MEASURES: The Northwick Park Dependency Score (NPDS), the Barthel Index (BI) and the Care Dependency Scale (CDS). RESULTS: The correlation (rho) between the NPDS and the BI for all groups was -0.87; R2=0.76 (n=154). Per patient group rho varied from -0.70 (R2=0.49) to -0.93 (R2=0.86). The overall correlation between the NPDS and CDS was larger than the criterion of rho=0.60 (r=-0.74; R2=0.55) but was <0.60 in the rheumatoid arthritis and tuberculosis group. The overall correlation between BI and CDS exceeded the criterion (r=0.75; R2=0.56). CONCLUSIONS: The NPDS is a generic nursing dependency instrument that can be used as a valid measure across various patient groups in rehabilitation.