A valid method for classifying chronic pain patients into more homogenous groups could be useful for treatment planning, that is, which treatment is effective for which patient, and as a marker when evaluating treatment outcome. One instrument that has been used to derive subgroups of patients is the Multidimensional Pain Inventory (MPI). The primary aim of this study was to evaluate a classification method based on the Swedish version of the MPI, the MPI-S, to predict sick leave among chronic neck and back pain patients for a period of 7 years after vocational rehabilitation. As hypothesized, dysfunctional patients (DYS), according to the MPI-S, showed a higher amount of sickness absence and disability pension expressed in days than adaptive copers (AC) during the 7-years follow-up period, even when adjusting for sickness absence prior to rehabilitation (355.8days, 95% confidence interval, 71.7; 639.9). Forty percent of DYS patients and 26.7% of AC patients received disability pension during the follow-up period. However, this difference was not statistically significant. Further analyses showed that the difference between patient groups was most pronounced among patients with more than 60days of sickness absence prior to rehabilitation. Cost-effectiveness calculations indicated that the DYS patients showed an increase in production loss compared to AC patients. The present study yields support for the prognostic value of this subgroup classification method concerning long-term outcome on sick leave following this type of vocational rehabilitation.
Most people with multiple sclerosis (PwMS) experience progressively worsening disability over a period of decades, thus further knowledge about the long-term changes in different areas of disability is essential.
The aims of this study were to evaluate changes in disability over ten years in PwMS, and to explore the value of personal and disease-specific factors and depressive symptoms in predicting disability. A further aim was to explore the value of these factors as predictors of mortality.
This study was based on a 10-year follow-up of a population-based study in Stockholm (n=166). Home visits were used to collect data on personal and disease-specific factors, walking ability, manual dexterity, cognitive function, mood, activities of daily living (ADL) and social/lifestyle activities.
The proportion of the study population who had disability in cognition, mood and social/lifestyle activities remained stable, while the proportion with disability in walking, manual dexterity and ADL increased. Disease severity predicted an increase in all studied variables of disability except in depressive symptoms. Older age and depressive symptoms were associated with mortality.
This study illustrates the importance of tailored interventions for PwMS and highlights the need for health-care professionals to consider the psychological aspects of the disease. Furthermore, our results indicate that the Expanded Disability Status Scale was a useful tool for predicting future disability.
Although most occupational and physical therapists in an acute burn care setting use similar therapy practices, the time frames at which these therapeutic interventions are carried out vary according to the burn centers' practices. The purpose of this survey was to investigate current trends in burn rehabilitation and compare the results with a similar survey performed in 1994. The survey was designed in a similar fashion to the 1994 survey to ascertain common trends in burn rehabilitation. The survey was sent to 100 randomly selected burn care facilities throughout the United States and Canada. Content included rehabilitation interventions, including evaluation, positioning, splinting, active range of motion, passive range of motion, ambulation, as well as the cross-training of therapists. Significant increases in the percentages of burn centers initiating common therapy practices were found. Positioning (41% increase), active range of motion (48% increase), passive range of motion (52% increase), and ambulation (29% increase) were all found to have increases in the number of burn centers employing these practices in the same time frame. Overall comparison from 1994 to 2006 shows that common therapy techniques are being initiated earlier in the patient's acute burn stay. These results are consistent with recent medical trends of earlier acute discharges and more focus on outpatient rehabilitation.
The 39 item Parkinson's disease questionnaire (PDQ-39) is the most widely used patient reported rating scale in Parkinson's disease. However, several fundamental measurement assumptions necessary for confident use and interpretation of the eight PDQ-39 scales have not been fully addressed.
Postal survey PDQ-39 data from 202 people with Parkinson's disease (54% men; mean age 70 years) were analysed regarding psychometric properties using traditional and Rasch measurement methods.
Data quality was good (mean missing item responses, 2%) and there was general support for the legitimacy of summing items within scales without weighting or standardisation. Score reliabilities were adequate (Cronbach's alpha 0.72-0.95; test-retest 0.76-0.93). The validity of the current grouping of items into scales was not supported by scaling success rates (mean 56.2%), or factor and Rasch analyses. All scales represented more health problems than that experienced by the sample (mean floor effect 15%) and showed compromised score precision towards the less severe end.
Our results provide general support for the acceptability and reliability of the PDQ-39. However, they also demonstrate limitations that have implications for the use of the PDQ-39 in clinical research. The grouping of items into scales appears overly complex and the meaning of scale scores is unclear, which hampers their interpretation. Suboptimal targeting limits measurement precision and, therefore, probably also responsiveness. These observations have implications for the role of the PDQ-39 in clinical trials and evidence based medicine. PDQ-39 derived endpoints should be interpreted and selected cautiously, particularly regarding small but clinically important effects among people with less severe problems.
Fibromyalgia (FM) is a pain condition with associated symptoms contributing to distress. The Fibromyalgia Survey Diagnostic Criteria and Severity Scale (FSDC) is a patient-administered questionnaire assessing diagnosis and symptom severity. Locations of body pain measured by the Widespread Pain Index (WPI), and the Symptom Severity scale (SS) measuring fatigue, unrefreshing sleep, cognitive and somatic complaints provide a score (0-31), measuring a composite of polysymptomatic distress. The reliability and validity of the translated French version of the FSDC was evaluated.
The French FSDC was administered twice to 73 FM patients, and was correlated with measures of symptom status including: Fibromyalgia Impact Questionnaire (FIQ), Health Assessment Questionnaire (HAQ), McGill Pain Questionnaire (MPQ), and a visual analogue scale (VAS) for global severity and pain. Test-retest reliability, internal consistency, and construct validity were evaluated.
Test-retest reliability was between .600 and .888 for the 25 single items of the FSDC, and .912 for the total FSDC, with all correlations significant (p?
Cites: Qual Life Res. 2002 Sep;11(6):583-9212206579
Over the last decades, psychosocial factors were identified by many studies as significant predictive variables in the development of disability related to common low back disorders, which thus contributed to the development of biopsychosocial prevention interventions. Biopsychosocial interventions were supposed to be more effective than usual interventions in improving different outcomes. Unfortunately, most of these interventions show inconclusive results. The use of screening questionnaires was proposed as a solution to improve their efficacy. The aim of this study was to validate a new screening questionnaire to identify workers at risk of being absent from work for more than 182 cumulative days and who are more susceptible to benefit from prevention interventions.
Injured workers receiving income replacement benefits from the Quebec Compensation Board (n = 535) completed a 67-item questionnaire in the sub-acute stage of pain and provided information about work-related events 6 and 12 months later. Reliability and validity of the 67-item questionnaire were determined respectively by test-retest reliability and internal consistency analysis, as well as by construct validity analyses. The Cox regression model and the maximum likelihood method were used to fix a model allowing calculation of a probability of absence of more than 182 days. Criterion validity and discriminative capacity of this model were calculated.
Sub-sections from the 67-item questionnaire were moderately to highly correlated 2 weeks later (r = 0.52-0.80) and showed moderate to good internal consistency (0.70-0.94). Among the 67-item questionnaire, six sub-sections and variables (22 items) were predictive of long-term absence from work: fear-avoidance beliefs related to work, return to work expectations, annual family income before-taxes, last level of education attained, work schedule and work concerns. The area under the ROC curve was 73%.
The significant predictive variables of long-term absence from work were dominated by workplace conditions and individual perceptions about work. In association with individual psychosocial variables, these variables could contribute to identify potentially useful prevention interventions and to reduce the significant costs associated with LBP long-term absenteeism.
Social reforms are often introduced solely on the basis of theoretical considerations without any empirical research. Thus, it is often an urgent matter to evaluate the real effects of a reform. In this investigation, the increased possibilities for abusers to obtain disability pensions that came into force in Sweden 1977-01-01 have been examined. A representative sample of 15 percent of all applications in the county of Ostergötland in 1975 has been compared with a corresponding one in 1978. As expected, the number of abusers of alcohol among the applicants increased. The proportion of male abusers rose from 13.5 in 1975 to 22 percent in 1978. Despite a levelling off of differences in the civil status in 1978, the abusers were still in a substantially weaker social position than the other applicants. In contrast to the other applicants, no traces of increased efforts towards vocational rehabilitation can be noted among the abusers in 1978. This is quite remarkable since, according to the preceding official report, liberalization was not meant to replace meaningful efforts of rehabilitation. In 1978, the whole group of applicants were younger and they lived more frequently in large, densely populated areas. Furthermore, the number of women increased so that they were in a majority among the applicants in 1978. These changes probably reflect structural changes in society, especially in the labour market. This is the final report of an independent study in the research project "Abuse of alcohol - Disability pension - Quality of life".