Revision of the International Classification of Impairments, Disabilities, and Handicaps: developmental issues

Audiometric profiles and patterns of benefit: a data-driven analysis of subjective hearing difficulties and handicaps

OBJECTIVE

Hearing rehabilitation attempts to compensate for auditory dysfunction, reduce hearing difficulties and minimise participation restrictions that can lead to social isolation. However, there is no systematic approach to assess the quality of the intervention at an individual level that might help to evaluate the need of further hearing rehabilitation in the hearing care clinic.

DESIGN

A data-driven analysis on subjective data reflecting hearing disabilities and handicap was chosen to explore "benefit patterns" as a result of rehabilitation in different audiometric groups. The method was based on (1) dimensionality reduction; (2) stratification; (3) archetypal analysis; (4) clustering; (5) item importance estimation.

STUDY SAMPLE

572 hearing-aid users completed questionnaires of hearing difficulties (speech, spatial and qualities hearing scale; SSQ) and hearing handicap (HHQ).

RESULTS

The data-driven approach revealed four benefit profiles that were different for each audiometric group. The groups with low degree of high-frequency hearing loss (HLHF) showed a priority for rehabilitating hearing handicaps, whereas the groups with HLHF > 50 dB HL showed a priority for improvements in speech understanding.

CONCLUSIONS

The patterns of benefit and the stratification approach might guide the clinical intervention strategy and improve the efficacy and quality of service in the hearing care clinic.

Behavioral interventions for poststroke aphasia

There is a long history of behavioral interventions for poststroke aphasia with hundreds of studies supporting the benefits of aphasia treatment. However, interventions for aphasia are complex with many interacting components, and no one treatment is appropriate for all persons with aphasia. We present a novel, simple framework for classifying aphasia interventions. The framework is incorporated within the overarching International Classification of Functioning, Disability, and Health (ICF) model and is consistent with the commonly-held definition that aphasia is a multimodality disorder that impairs, in varying degrees, the understanding and expression of both oral and written language modalities. Furthermore, within the language impairment level, it distinguishes between the linguistic areas of phonology, semantics, and syntax that may be impaired individually or in combination. We define the terminology of the proposed framework and then categorize some common examples of behavioral interventions for post-stroke aphasia. We describe some of these interventions in greater detail to illustrate the extensive toolbox of evidence-based treatments for aphasia. We address some key issues that clinicians, usually speech-language pathologists, consider when selecting interventions for their specific patients with aphasia, including dose. Finally, we address various models of service delivery for persons with aphasia such as Intensive Comprehensive Aphasia Programs (ICAPs) and Aphasia Centers.

Early childhood suspected developmental delay in 63 low- and middle-income countries: Large within- and between-country inequalities documented using national health surveys

²Postgraduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil.

Background

The Sustainable Development Goals call for inclusive, equitable and quality learning opportunities for all. This is especially important for children, to ensure they all develop to their full potential. We studied the prevalence and inequalities of suspected delay in child development in 63 low- and middle-income countries.

Methods

We used the early child development module from national health surveys, which covers four developmental domains (physical, social-emotional, learning, literacy-numeracy) and provides a combined indicator (early child development index, ECDI) of whether children are on track. We calculated the age-adjusted prevalence of suspected delay at the country level and stratifying by wealth, urban/rural residence, sex of the child and maternal education. We also calculated measures of absolute and relative inequality.

Results

We studied 330 613 children from 63 countries. Prevalence of suspected delay for the ECDI ranged from 3% in Barbados to 67% in Chad. For all countries together, 25% of the children were suspected of developmental delay. At regional level, prevalence of delay ranged from 10% in Europe and Central Asia to 42% in West and Central Africa. The literacy-numeracy domain was by far the most challenging, with the highest proportions of delay. We observed very large inequalities, and most markedly for the literacy-numeracy domain.

Conclusions

To date, our study presents the most comprehensive analysis of child development using an instrument especially developed for national health surveys. With a quarter of the children globally suspected of developmental delay, we face an immense challenge. The multifactorial aspect of early child development and the large gaps we found only add to the challenge of not leaving these children behind.

Broadening horizons: the case for capturing function and the role of health informatics in its use

Background

Human activity and the interaction between health conditions and activity is a critical part of understanding the overall function of individuals. The World Health Organization’s International Classification of Functioning, Disability and Health (ICF) models function as all aspects of an individual’s interaction with the world, including organismal concepts such as individual body structures, functions, and pathologies, as well as the outcomes of the individual’s interaction with their environment, referred to as activity and participation. Function, particularly activity and participation outcomes, is an important indicator of health at both the level of an individual and the population level, as it is highly correlated with quality of life and a critical component of identifying resource needs. Since it reflects the cumulative impact of health conditions on individuals and is not disease specific, its use as a health indicator helps to address major barriers to holistic, patient-centered care that result from multiple, and often competing, disease specific interventions. While the need for better information on function has been widely endorsed, this has not translated into its routine incorporation into modern health systems.

Purpose

We present the importance of capturing information on activity as a core component of modern health systems and identify specific steps and analytic methods that can be used to make it more available to utilize in improving patient care. We identify challenges in the use of activity and participation information, such as a lack of consistent documentation and diversity of data specificity and representation across providers, health systems, and national surveys. We describe how activity and participation information can be more effectively captured, and how health informatics methodologies, including natural language processing (NLP), can enable automatically locating, extracting, and organizing this information on a large scale, supporting standardization and utilization with minimal additional provider burden. We examine the analytic requirements and potential challenges of capturing this information with informatics, and describe how data-driven techniques can combine with common standards and documentation practices to make activity and participation information standardized and accessible for improving patient care.

Recommendations

We recommend four specific actions to improve the capture and analysis of activity and participation information throughout the continuum of care: (1) make activity and participation annotation standards and datasets available to the broader research community; (2) define common research problems in automatically processing activity and participation information; (3) develop robust, machine-readable ontologies for function that describe the components of activity and participation information and their relationships; and (4) establish standards for how and when to document activity and participation status during clinical encounters. We further provide specific short-term goals to make significant progress in each of these areas within a reasonable time frame.

Patient-reported outcomes in spine surgery: past, current, and future directions

The purpose of this article is to review the current state of outcome measurement in spine surgery, with an emphasis on patient-reported outcome measures (PROMs). The commonly used generic and disease-specific outcome measures used in spinal surgery and research will be discussed. The authors will introduce the concepts of response shift and appraisal processes, which may affect the face validity of PROMs, as well as their interpretation over time. It is not uncommon for there to be a discrepancy between the observed and expected outcome, which is not wholly explainable by objective measures. Current work on understanding how appraisal affects outcome measurement will be discussed, and future directions will be suggested to facilitate the continued evolution of PROMs.There has been an evolution in the way clinicians measure outcomes following spinal surgery. In moving from purely physical, objective measures to a growing emphasis on the patient's perspective, spine surgery outcomes are better able to integrate the impact at multiple levels of relevant change. Appraisal concepts and methods are gaining traction as ways to understand the cognitive processes underlying PROMs over time. Measurement of appraisal is a valuable adjunct to the current spine outcome tools.

Coffee consumption and risk of physical function impairment, frailty and disability in older adults

PURPOSE

Habitual coffee consumption has been associated with lower risk of type 2 diabetes and cardiovascular disease. Since these diseases are main determinants of functional limitations, we have tested the hypothesis that coffee intake is associated with lower risk of physical function impairment, frailty and disability in older adults. We focused on women and those with obesity, hypertension or type 2 diabetes because they are at higher risk of functional limitations.

METHODS

Prospective study with 3289 individuals ≥ 60 years from the Seniors-ENRICA cohort. In 2008-2010 coffee consumption was measured through a validated dietary history. Participants were followed up until 2015 to ascertain incident impaired physical function, frailty and disability, assessed by both self-report and objective measures.

RESULTS

Compared with non-drinking coffee, consumption of ≥ 2 cups of coffee/day was associated with lower risk of impaired agility in women (hazard ratio [HR] 0.71, 95% confidence interval [CI] 0.51-0.97, P trend 0.04) and in those with obesity (HR 0.60; 95% CI 0.40-0.90, P trend 0.04). Intake of ≥ 2 cups of coffee/day was also linked to reduced risk of impaired mobility in women (HR 0.66; 95% CI 0.46-0.95, P trend 0.02) and among individuals with hypertension (HR 0.70, 95% CI 0.48-1.00, P trend 0.05). Moreover, among subjects with diabetes, those who consumed ≥ 2 cups/day had lower risk of disability in activities of daily living (HR 0.30, 95% CI 0.11-0.76, P trend 0.01).

CONCLUSIONS

In older people, habitual coffee consumption was not associated with increased risk of functional impairment, and it might even be beneficial in women and those with hypertension, obesity or diabetes.

Encouraging obese students with intellectual disabilities to engage in pedaling an exercise bike by using an air mouse combined with preferred environmental stimulation

This study extended research into the application of high-tech products in the field of special education, using a standard air mouse with a newly developed pedal detection program (PDP) software. PDP is a new software program used to turn a standard air mouse into a pedal detector in order to evaluate whether two obese students with intellectual disabilities (ID) would be able to actively perform the activity of pedaling an exercise bike in order to control their preferred environmental stimulation. This study was performed according to an ABAB design. The data showed that both participants had more willingness to engage in the pedaling activity to activate the environmental stimulation in the intervention phases than in the baseline phase. The practical and developmental implications of the findings are discussed.

Moving beyond prevalence studies: screening and interventions for children with disabilities in low-income and middle-income countries

Research understanding the lives of children with disabilities in low-income and middle-income countries has predominantly focused on prevalence studies with little progress on evidence-based service development. At the same time, global attention in child health has shifted from child survival strategies to those that bring child survival and development together. This review examines whether intervention research can be better aligned with current theoretical constructs of disability and international guidelines that advocate for the realisation of rights for children with disabilities and inclusive early childhood development.

Caregivers' reported functional limitations in activities of daily living among middle-aged adults with intellectual disabilities

This study was conducted to describe the functioning of Activities of Daily Living (ADL) and to examine socio-economic effects on ADL functioning among adults with intellectual disabilities (ID) aged 45 years and older (N=480) in Taiwan. The Barthel Index (BI) was used to determine a baseline level of ADL functioning in the study participants. There are five categories of functional impairment using the following cut-off values in Taiwan: total dependence (BI score 0-20), severe (BI score 21-60), moderate (BI score 61-90), mild (BI score 91-99), and total independence (BI score 100) (Taiwan Department of Health, 2012). The results revealed that 2.3% of adults with ID were in total dependence, 11.9% were in severe dependence, 27.9% were in moderate dependence, 8.1% had a mild dependence, and 49.8% were totally independent. In the multiple linear regression model of the ADL score, we determined that educational level, comorbid Down's syndrome, and disability level are the variables able to significantly predict ADL score (R(2)=0.190) after controlling for the factors of age, marital status, and other comorbidity conditions. Those ID adults with a lower education level (primary vs. literate, β=4.780, p=0.031; intermediate vs. literate, β=6.642, p=0.030), with comorbid Down's syndrome (β=-7.135, p=0.063), and with a more severe disability condition (severe vs. mild, β=-7.650, p=0.007; profound vs. mild, β=-19.169, p<0.001) had significantly lower ADL scores. The present study highlights the need to support mobility in older adults with ID as much as possible to optimize independence in this group.

Evaluation of an activities of daily living scale for adolescents and adults with developmental disabilities

BACKGROUND

Activity limitations are an important and useful dimension of disability, but there are few validated measures of activity limitations for adolescents and adults with developmental disabilities.

OBJECTIVE/HYPOTHESIS

To describe the development of the Waisman Activities of Daily Living (W-ADL) Scale for adolescents and adults with developmental disabilities, and systematically evaluate its measurement properties according to an established set of criteria.

METHODS

The W-ADL was administered among four longitudinally studied groups of adolescents and adults with developmental disabilities: 406 with autism; 147 with fragile-X syndrome; 169 with Down syndrome; and 292 with intellectual disability of other or unknown origin. The W-ADL contains 17 activities and each is rated on a 3-point scale (0 = "does not do at all", 1 = "does with help", 2 = "independent"), and a standard set of criteria were used to evaluate its measurement properties.

RESULTS

Across the disability groups, Cronbach's alphas ranged from 0.88 to 0.94, and a single-factor structure was most parsimonious. The W-ADL was reliable over time, with weighted kappas between 0.92 and 0.93. Criterion and construct validity were supported through substantial associations with the Vineland Screener, need for respite services, caregiving burden, and competitive employment. No floor or ceiling effects were present. There were significant group differences in W-ADL scores by maternally reported level of intellectual disability (mild, moderate, severe, profound).

CONCLUSIONS

The W-ADL exceeded the recommended threshold for each quality criterion the authors evaluated. This freely available tool is an efficient measure of activities of daily living for surveys and epidemiological research concerning adolescents and adults with developmental disabilities.

The importance of motor functional levels from the activity limitation perspective of ICF in children with cerebral palsy

Our purpose in this study was to evaluate performance and capacity as defined by Gross Motor Function Classification System (GMFCS) and Manual Ability Classification System (MACS) from the 'activity limitation' perspective of International Classification of Functioning,Disability, and Health (ICF) and to investigate the relationship between the two classification systems in different subtypes of cerebral palsy (CP). This prospective cross-sectional study was performed on 448 children with CP ranging from 4 to 15 years of age. Activity limitations were studied with the GMFCS for gross motor function and MACS for manual ability. The Spearman's correlation coefficient, contingency coefficient, and Cramer's V coefficient were used to assess the strength and significance of the association betweenGMFCS and MACS. The overall agreement between GMFCS and MACS was found to be 41%. The agreement was 42% in spastic children, 40% in dyskinetic children, 50% in ataxic children, and 28% in mixed type children. The overall j value was j=0.235 (P<0.001). The κ coefficient was 0.252 in spastic children, 0.245 in dyskinetic children, 0.318 in ataxic children, and 0.023 in mixed type children. All the κ coefficients except the value for the mixed type were found to be significant. The usage of two different classification systems, GMFCS and MACS, to describe the capacity and performance in children with CP as defined by the ICF provides an easy and quick classification tool for indicating 'activity limitations' of ICF in children with CP. The next step in research should be to highlight the other domains such as participation restrictions in these children.

5 versus 10 days of treatment with ceftriaxone for bacterial meningitis in children: a double-blind randomised equivalence study

BACKGROUND

Bacterial meningitis is an important cause of morbidity and mortality in developing countries, but the duration of treatment is not well established. We aimed to compare the efficacy of 5 and 10 days of parenteral ceftriaxone for the treatment of bacterial meningitis in children.

METHODS

We did a multicountry, double-blind, placebo-controlled, randomised equivalence study of 5 versus 10 days of treatment with ceftriaxone in children aged 2 months to 12 years with purulent meningitis caused by Streptococcus pneumoniae, Haemophilus influenzae type B, or Neisseria meningitidis. Our study was done in ten paediatric referral hospitals in Bangladesh, Egypt, Malawi, Pakistan, and Vietnam. We randomly assigned children who were stable after 5 days of treatment, through site-balanced computer-generated allocation lists, to receive a further 5 days of ceftriaxone or placebo. Patients, their guardians, and staff were masked to study-group allocation. Our primary outcomes were bacteriological failure or relapse. Our analysis was per protocol. This study is registered with the International Standard Randomised Controlled Trial Number Register, number ISRCTN38717320.

FINDINGS

We included 1004 of 1027 children randomly assigned to study groups in our analyses; 496 received treatment with ceftriaxone for 5 days, and 508 for 10 days. In the 5-day treatment group, two children (one infected with HIV) had a relapse; there were no relapses in the 10-day treatment group and there were no bacteriological failures in either study group. Side-effects of antibiotic treatment were minor and similar in both groups.

INTERPRETATION

In children beyond the neonatal age-group with purulent meningitis caused by S pneumoniae, H influenzae type b, or N meningitidis who are stable by day 5 of ceftriaxone treatment, the antibiotic can be safely discontinued.

FUNDING

United States Agency for International Development.

Content comparison of haemophilia specific patient-rated outcome measures with the international classification of functioning, disability and health (ICF, ICF-CY)

Background

Patient-Reported Outcomes (PROs) are considered important outcomes because they reflect the patient's experience in clinical trials. PROs have been included in the field of haemophilia only recently.

Purpose

Comparing the contents of PROs measures used in haemophilia, based on the ICF/ICF-CY as frame of reference.

Methods

Haemophilia-specific PROs for adults and children were selected on the grounds of international accessibility. The content of the selected instruments were examined by linking the concepts within the items of these instruments to the ICF/ICF-CY.

Results

Within the 5 selected instruments 365 concepts were identified, of which 283 concepts were linked to the ICF/ICF CY and mapped into 70 different categories. The most frequently used categories were "b152: Emotional functions" and "e1101: Drugs".

Conclusions

The present paper provides an overview on current PROs in haemophilia and facilitates the selection of appropriate instruments for specific purposes in clinical and research settings. This work was made possible by the grant of the European Murinet Project (Multidisciplinary Research Network on Health and Disability in Europe).

The ICF model of functioning and disability: incorporating quality of life and human development

OBJECTIVE

Since its 2001 publication, a number of issues have been raised about the ICF. The World Health Organization anticipated the ICF would undergo a continuous process of revision. This paper adds to this process.

METHOD

This article describes how the ICF framework shares a number of tenets with a systems perspective. An argument is built for why the ICF model of functioning and disability should be expanded to include the concepts of quality of life and human development. A modified model is presented that depicts a person's life quality and his/her potential for development as the outcomes and processes that arise from the interconnected, ever-changing influences of health, functioning and contextual factors.

CONCLUSIONS

A modified ICF model based on a systems perspective depicts a holistic view that acknowledges health, functioning, life quality and development are intertwined and are essential concepts to consider in the lives of all people.

Client satisfaction of hand therapy intervention: An evaluation of the effectiveness of therapy for clients recovered from complex regional pain syndrome

Complex regional pain syndrome (CRPS) is a neuropathic pain condition that may develop following trauma to an extremity. Clients treated for CRPS at St Joseph's Health Care London - Hand and Upper Limb Centre, London, Ontario, were asked to evaluate their level of satisfaction with the treatment they had received by comparing their pain, functional status and emotional status before and after receiving therapy. The results indicated a high level of satisfaction among clients, attributable to the unique nature of the therapy program in use at this facility, where the occupational therapist works in close collaboration with the surgeon and pain specialists, and the therapy regimen is designed for each client individually according to his or her needs. The unique contribution of the present study to the body of clinical literature on CRPS is that it introduces a focus on client functionality and on client satisfaction with therapy received.

Enhancing the conceptual clarity of the activity and participation components of the International Classification of Functioning, Disability, and Health

A key area left open in the International Classification of Functioning, Disability, and Health (ICF) is the distinction between activity and participation. This paper suggests characteristics to distinguish between the components in the ICF model which explicitly include the relationship of contextual factors to the different components. Ten distinguishing characteristics are presented which fall into three major groups: the construct of the component, individual effects, and contextual influences. Application of these suggests that there are four distinguishable components of functioning, disability, and health, which are labeled body functions and structures, acts, tasks, and societal involvement. The body functions and structures component is the same as the ICF component. Acts, tasks, and societal involvement are sub-components of the combined ICF components of activity and participation. Contextual influences operate both as facilitators or barriers (as suggested in the ICF) and as scene-setters. An enhanced model of the relationship between the components is presented, suggesting that there are reciprocal relationships between contextual factors acting as scene-setters, contextual factors acting as facilitators or barriers, societal involvement, tasks, and acts. Further research is needed to determine to what extent these characteristics can be operationalized to distinguish between items in the ICF combined activity and participation classification.

Quality of life in children with systemic lupus erythematosus: a review

Systemic lupus erythematosus (SLE) in children is a chronic multisystem disease with wide ranging effects on their quality of life (QOL). While SLE's impact on different arenas of life and well-being has been extensively examined in the adult population, its effect on children has not received adequate attention. This review discusses the multidimensional aspect of QOL, the biopsychosocial implications of SLE, factors complicating QOL measurement in the affected population, and the different generic and disease-specific scales used for measuring QOL and related constructs. Until now, there have not been any pediatric SLE-specific health-related QOL (HRQOL) scales. A section is devoted to a novel instrument developed specifically for measuring QOL in pediatric lupus called the Simple Measure of the Impact of Lupus Erythematosus in Youngsters (SMILEY). SMILEY is a brief, easily understood, valid, reliable and internally consistent pediatric SLE-specific QOL scale and will be a useful adjunct to clinical trials and outcomes research.

Assessment of everyday functioning in young children with disabilities: an ICF-based analysis of concepts and content of the Pediatric Evaluation of Disability Inventory (PEDI)

BACKGROUND

Assessment of everyday functioning in children may depend to a considerable extent on the framework used to conceptualise functioning and disability. The Pediatric Evaluation of Disability Inventory (PEDI) has incorporated the mediating role of the environment on disability, using different measurement scales. The construction of the Functional Skills scales, which measure capability, and the Caregiver Assistance scales, which measure performance, was based on the Nagi disablement scheme. The International Classification of Functioning, Disability and Health (ICF) represents a new framework of functioning and disability that could be used to compare the measurement constructs and the content of different outcome measurements.

PURPOSE

To examine the conceptual basis and the content of the PEDI using the ICF.

METHOD

Phrases that describe the conceptual basis of the PEDI scales and of the ICF classifications were systematically collected and compared. Two researchers classified the item content of the Functional Skills scales independently before consensus was reached.

RESULTS

The analyses indicate that the conceptual basis of the PEDI scales to a large extent match the ICF concepts of activity, participation and environmental factors. Both the PEDI and the ICF use the constructs of capacity and performance, but differ in how to operationalise these constructs. The classification of the Functional Skills scales shows that the PEDI primarily is a measure of activities and participation. The frequently use of environmental codes to classify the context of the requested functions demonstrates that the PEDI has incorporated the environment into the assessment.

CONCLUSIONS

Our analyses indicate that the ICF could serve as a conceptual framework to clarify the measurement construct of the PEDI scales, and as taxonomy to describe and clarify the item content of the Functional Skills scales. Both as framework and taxonomy the ICF showed limitations in covering functioning in early childhood.

Beyond function: predicting participation in a rehabilitation cohort

OBJECTIVES

To monitor participation in a rehabilitation cohort and to identify determinants of change during a 12-month period posthospitalization following the onset of one of several major disabling conditions.

DESIGN

Cohort study.

SETTING

Postacute care rehabilitation settings.

PARTICIPANTS

Adults (N=435) aged 18 years and older with complex medical, lower-extremity orthopedic, and major neurologic impairments.

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURES

At 1-, 6-, and 12-month follow-ups, community participation and social and home participation were assessed by personal interviews using the Participation Measure for Post-Acute Care. Information on potential determinants was abstracted from the medical chart and by personal interview using standardized instruments.

RESULTS

On average, rehabilitation patients achieved modest improvements in their levels of community participation during the first 6 months after acute hospitalization. In contrast, these same patients displayed a modest loss in social and home participation levels during the follow-up period. Activity limitations were the dominant factors that explained much of the variance in the extent of community participation achieved by patients. Personal and social environmental factors played a major role in predicting levels of social and home participation.

CONCLUSIONS

The focus of rehabilitation interventions aimed at achieving posthospital participation requires careful consideration of the specific domain of participation that is being targeted.

Quality of life in children with systemic lupus erythematosus

Systemic lupus erythematosus (SLE) in children is a chronic multi-system disease with wide ranging effects on their quality of life (QOL). While SLE's impact on different arenas of life and well-being has been extensively examined in the adult population, its effect on children has not received adequate attention. This paper briefly discusses the multidimensional aspect of QOL, the biopsychosocial implications of SLE, factors complicating QOL measurement in the affected population, and the different generic and disease-specific scales used for measuring QOL and related constructs, and it also highlights the need for SLE-specific pediatric QOL instruments.

Risk behaviors for varying categories of disability in NELS:88

A large body of research shows that youth with disabilities, who comprise about 13% of the country's school-aged population, report comparable to higher incidence rates of alcohol, tobacco, and other drug (ATOD) use than their peers. Furthermore, youth with disabilities who reported ATOD use or who engaged in binge drinking had significantly more negative educational outcomes and engaged in sexual activity at a younger age than nonusers. This study describes risk factors for substance use, personal characteristics, aspects of the attitudinal environment, and educational, employment, and social outcomes among youth across 6 categories of disability. Data came from the National Center for Education Statistics' National Education Longitudinal Study of 1988-2000 (NELS:88). The findings indicate that (a) youth with varying types of disabilities are relatively homogenous with respect to risk behaviors, personal characteristics, and outcomes; (b) youth with emotional, learning, or multiple disabilities may be at heightened risk for binge drinking and marijuana use; and (c) youth with emotional and multiple disabilities may be less likely to graduate from high school or its equivalent 8 years beyond the 12th grade. Based on these results and limitations of the NELS sampling strategy, appropriate interventions are discussed as well as the need for more definitive operational definitions for disabilities, specifically the biopsychosocial approach used by the International Classification of Functioning, Disability, and Health.

Quality of life, disability and handicap in patients with toxic oil syndrome

AIM

This paper reports an investigation of the quality of life of patients most severely affected by toxic oil syndrome and the association between quality of life and disability variables, handicaps and depression.

BACKGROUND

In 1981, an epidemic occurred in Central and Northwestern Spain. The illness, now called toxic oil syndrome (TOS), appeared to be caused by consumption of oil mixtures containing rapeseed oil denatured with aniline and affected over 20,000 individuals. Today, it is classified as a chronic disease that has resulted in a large number of sequelae.

METHOD

From the 1031 people classified with permanent disability, a random sample of 292 individuals was selected. A structured interview was carried out to investigate the clinical aspects. The Nottingham Health Profile Questionnaire was used to assess quality of life. To study the relationship between quality of life and disability, handicap and depression, a univariate analysis was carried out. The chi-square test was used for inter-group comparisons. A P-value of 0.05 was adopted as the limit for inclusion of a variable in the multivariate analysis. Multivariate analysis was undertaken using logistic regression.

RESULTS

Two hundred and fourteen patients were interviewed (79% response rate). Mean age was 59.3 (sd: 12.7) years. Quality of life mean score was 52.8 (sd: 22.6). The variables associated with poorer quality of life perception were depression [odds ratio (OR) = 9.66, confidence interval (CI) = 3.71-25.15], role-related disabilities (occupation role: OR = 2.82 CI = 1.28-6.22) and mobility (bending/picking up: OR = 4.74, CI = 2.31-9.72), as well as economic problems (OR = 1.62, CI = 1.07-2.46).

CONCLUSION

The quality of life of those most severely affected by TOS is poor. Their health profile is characterized by depression and important functional and psycho-social disabilities that limit daily living activities and social roles, and are related to self-perceptions of poor quality of life.

The relationship between function, self-perception, and spinal deformity: Implications for treatment of scoliosis in children with spina bifida

The purpose of this study was to determine the relationship of spinal deformity with physical function and self-perception in children with spina bifida. Ninety-eight eligible children with scoliosis and spina bifida were identified; 80 of them (82%) consented to participate. Spinal deformity was measured in many ways, including scoliosis, coronal balance, and pelvic obliquity. Measures of physical function included the Sitting Balance Scale, Jebsen Hand Scale, Hoffer Ambulation Scale, the Spine Bifida Spine Questionnaire, and the Activities Scale for Kids (ASK). Self-perception was determined with Harter's Self-Perception Profile. No relationship was found between spinal deformity and overall physical function (ASK). Of all aspects of spinal deformity, only coronal imbalance was significantly related to only one aspect of physical function (ie, sitting imbalance). No aspect of spinal deformity was related to self-perception. In conclusion, surgeons should be clear in their indications for surgery and recognize that in the short term the potential benefit of surgery may be, at best, to improve only sitting balance.

Measuring functional skills in preschool children at risk for neurodevelopmental disabilities

Approximately 400,000 preschool children have a major neurodevelopmental disorder impacting on mobility, cognitive-adaptive, or communicative skills. As many as 1 in 3 children live at psychosocial disadvantage because of poverty, parental mental illness or substance misuse, or low parental educational (i.e. less than high school). In the past decade over 500,000 preschool children have survived being born with very low birth weight (1001-1500 g) or extremely low birth weight status (< or =1000 g). Given the scope of these risks and the importance of optimizing outcomes for vulnerable children, this review will highlight advances in functional assessment using adaptive and multiattribute health-related quality of life measures. A framework based on the International Classification of Functioning, (ICF) World Health Organization and the Dynamic Kaleidoscope Model of the Institute of Medicine (IOM) will be described and illustrated with examples of children receiving new biomedical technologies. Assessment scales were chosen for review if they measured adaptive skills or multiattribute health status and had been used in child disability populations. Instruments reviewed include the Infant and Toddler Quality of Life Questionnaire (ITQOL), The Netherlands Office of Prevention Assessment of Preschool Quality of Life (TAPQOL), the Health Status Classification System-PreSchool (HSCS-PS), the Pediatric Evaluation of Disability Inventory (PEDI), the Vineland Adaptive Behavior Scale (VABS), the Warner Inventory of Developmental and Emerging Adaptive and Functional Skills (Warner IDEA-FS), the Scales of Independent Behavior Revised (SIB-R) Early Development Form, the Pediatric Functional Independence Measure (WeeFIM), and the Pediatric Quality of Life Inventory Version 4 (PedsQL 4.0). By measuring functional and adaptive skills and health-related quality of life, we can help devise intervention strategies that optimize developmental independence, family supports, and community participation among children who are at risk for neurodevelopmental disabilities or who have evolving established neurodevelopmental disabilities.

Joint range of motion limitations in children and young adults with spinal muscular atrophy

OBJECTIVES

To elicit descriptive data about limited joint range of motion (ROM) in subjects with type II or III spinal muscular atrophy (SMA) and to examine the relation between the number of motions with limited range and both age and functional ability.

DESIGN

Descriptive cross-sectional study.

SETTING

Neurologic pediatric outpatient clinic at a hospital in Taiwan.

PARTICIPANTS

Twenty-seven subjects with SMA type II (mean age, 9.8+/-6.5y) and 17 with SMA type III (mean age, 12.2+/-8.7y). Intervention Measurement with transparent goniometers of joint ROM bilaterally of the shoulder, elbow, wrist, hip, knee, and ankle.

MAIN OUTCOME MEASURES

The proportion of participants with each ROM limitation compared with all participants with the same SMA type, age distribution of the participants with each ROM limitation, mean range loss of each motion limitation, and the contracture index (risk index of joint contracture).

RESULTS

Eighty-nine percent of the participants with SMA type II experienced knee extension limitation. Approximately 50% of the participants with both types of SMA had ankle dorsiflexion limitation. The motions of knee and hip extension and ankle dorsiflexion also had a relatively high contracture index. The number of motions with limited range positively correlated ( P <.001) with age and upper-extremity functional grade (the higher the functional grade, the poorer the functional ability) for SMA type II.

CONCLUSIONS

We found varying degrees of joint ROM limitation. Certain motions were noted to be high risks for the development of contractures. This risk was higher mostly in younger children.

Impairments and activity limitations in subjects with chronic upper-limb complex regional pain syndrome type I

OBJECTIVE

To determine the degree of impairments and activity limitations and their interrelationship in complex regional pain syndrome type I (CRPS type I).

DESIGN

Cross-sectional study interrelating impairments and objectively measured activity limitations.

SETTING

Ambulatory and home environment.

PARTICIPANTS

Thirty nonacute upper-limb CRPS type I subjects.

INTERVENTIONS

Not applicable. Main outcome measures Sensory, motor, and autonomic impairments, as well as activity-limitation outcome measures. The latter were objectively measured with a novel upper-limb activity monitor (based on ambulatory accelerometry).

RESULTS

All subjects were impaired to some degree but with a large variability with respect to magnitude. Regarding activity limitations, the involved upper limb was clearly less active (lower intensity and percentage of activity) than the noninvolved side. Impaired active range of motion (adjusted R(2) range, 18%-39%) and grip strength (adjusted R(2) range, 12%-45%) were the most important factors explaining variance in activity limitations.

CONCLUSIONS

All subjects were still impaired nearly 3 years after the causative event. The involved upper limb was also clearly less active than the noninvolved side, especially when the subjects were sitting and when the dominant side was involved. The more impairments a subject had, especially motor impairments, the more activity limitations were present.

Stuttering and the International Classification of Functioning, Disability, and Health: an update

The World Health Organization (WHO) recently presented a multidimensional classification scheme for describing health status and the experience of disablement. This new framework, the International Classification of Functioning, Disability, and Health (ICF; WHO, 2001), is a revision of WHO's prior framework for describing the consequences of disorders, the International Classification of Impairments, Disabilities, and Handicaps (ICIDH; WHO, 1980). In previous papers, Yaruss had shown how the original ICIDH could be adapted to describe the consequences of stuttering at several levels that are relevant to the communication and life experiences of the person who stutters. The current manuscript presents an update of the Yaruss (1998) model that accounts for the new structure of the ICF. A comparison of the WHO's ICIDH and ICF frameworks is presented, followed by an analysis of how the ICF can be adapted to describe the speaker's experience of the stuttering disorder. Emphasis is placed on the fact that stuttering involves more than just observable behaviors. Specifically, the speaker's experience of stuttering can involve negative affective, behavioral, and cognitive reactions (both from the speaker and the environment), as well as significant limitations in the speaker's ability to participate in daily activities and a negative impact on the speaker's overall quality of life.

LEARNING OUTCOMES

As a result of reading this manuscript, participants, willgain an understanding of the updates to the World Health Organization's original International Classification of Impairments, Disabilities, and Handicaps that are seen in the International Classification of Functioning, Disability, and Health understand how the ICF can be applied to the study of stuttering recognize that health conditions such as stuttering are affected by both internal and external factors, and can involve more than just observable behaviors that are seen on the surface.

The meaning of life experiences: application of a meta-model to rehabilitation sciences and services

A motivational, developmental meta-model of the meaning of everyday life experiences is presented. The model proposes that there are 3 fundamental ways in which people establish meaning across the life span: the paths of belonging (relationships), doing (meaningful engagement in activities), and understanding oneself and the world. The principles of the model include intertwined, fundamental meanings of human experience; the indeterminacy of cause and effect; individual differences in preferences for ways of attaining meaning; the importance of commitments in life; and life-long adaptation and changes in meaning. The model provides an organizing framework that clarifies the assumptions of various disciplinary frames of reference with respect to establishing meaning in everyday life. Implications of the model are discussed for the rehabilitation sciences and rehabilitation service delivery.

Changes in mobility of children with cerebral palsy over time and across environmental settings

This study examined changes in mobility methods of children with cerebral palsy (CP) over time and across environmental settings. Sixty-two children with CP, ages 6-14 years and classified as levels II-IV on the Gross Motor Function Classification System, were randomly selected from a larger data base and followed for three to four years. On each of several assessments, parents completed a questionnaire on their child's usual mobility methods in the home, school, and outdoors/community settings. During the first assessment interval, mobility methods increased to methods requiring more gross motor control. During the second assessment interval, mobility methods were unchanged or decreased to methods requiring less gross motor control. Changes within the child and within the environment are hypothesized to occur and to impact changes in mobility methods. Screening at regular intervals is recommended to monitor changes in mobility. Interventions to enhance mobility may be indicated during periods of change in the child or exposure to new environments.

Measuring chronic health condition and disability as distinct concepts in national surveys of school-aged children in Canada: a comprehensive review with recommendations based on the ICD-10 and ICF

PURPOSE

With the aim of improving the measurement of child health and disability in survey research, this paper reviews the coverage of chronic health conditions and the domains of disability and related environmental factors as they are laid out in the ICD-10 and ICF, respectively, in national surveys of school-aged children conducted in Canada since 1980. Recommendations are made for future survey use and construction.

METHODS

Two reviewers independently examined each of the surveys. Coverage of chronic health conditions, the domains of disability, and environmental factors in survey questions was identified by mapping question content onto ICD-10 and ICF codes. The reviewers then compared their findings and came to a final consensus.

RESULTS

Surveys vary in the range and depth of coverage of the ICD-10 and ICF chapters. Disability surveys and health surveys for persons aged 12 and over contain the most comprehensive lists of chronic conditions. Coverage of impairments is limited. Coverage of activity limitations and participation restrictions is most limited in the domains of personal care and domestic life. Environmental factors not covered include natural environmental changes, attitudes, and policies.

CONCLUSIONS

Development of a comprehensive standard list of chronic health conditions based on the ICD-10 and development of standard survey measures of the domains of disability and environmental factors based on the ICF for use in surveys of school-aged children would facilitate an understanding of children's health and disability in the context of the current international health framework provided by the World Health Organization.

Classification of communication disabilities in children: contribution of the International Classification on Functioning, Disability and Health

Problems in communication serve as frequent markers of developmental delay and disability in childhood. Documentation of delayed or atypical receptive or expressive communication is one of the key diagnostic factors in the identification of children for intervention and support. This paper (1) reviews issues in classification and measurement of communication disabilities, (2) presents an overview of the development and publication of the WHO International Classification of Functioning, Disability and Health (ICF), and (3) identifies the implications of the ICF for children and youths with communication disabilities. As a conceptual framework, the ICF may be used productively to define the focus for different efforts to address children's language and communication difficulties. Impairments of a physical or mental nature can be covered in the Body Function and Body Structure components, complementing the information provided by the ICD-10 with descriptive documentation. The component of Activities, encompassing performance aspects of communication, lends itself to functional assessment and intervention in habilitation and education programs. The component of Participation provides an operational basis for policy initiatives focusing on social integration and community life Finally, the Environmental Factors component serves as a framework for identifying the nature and extent of access and opportunity for individuals and populations.

Secondary conditions in children with disabilities: spina bifida as a case example

This paper examines the concept of secondary conditions and its application in studies of childhood disability focusing on children with spina bifida as a representative group. The "International Classification of Functioning, Disability and Health" (World Health Organization, Geneva, 2001) provides a classification of body function/structure, activities, participation and the environment to document dimensions of human functioning in context. The ICF is of value in the study of secondary conditions in two ways: as a conceptual framework for defining impairments, activity limitations and participation restrictions, and the mediating role of the environment in their expression; and as a taxonomy for coding these dimensions of disability. The ICF can yield a profile of a child's difficulties, and documentation of environmental barriers experienced by that child. Research studies with children and adolescents with spina bifida reveal that physical and mental impairments and limitations in performing activities and participating in communal life are experienced as secondary conditions. The significance of secondary conditions is that they are preventable. Identifying the mechanisms associated with their manifestation is thus an important priority for the development of effective prevention programs.

A review of functional status measures for workers with upper extremity disorders

In order to identify functional status measures for epidemiological studies among workers with mild to moderate disorders of the neck and upper extremity, a literature search was conducted for the years 1966 to 2001. Inclusion criteria were: (1) relevance to neck and upper extremity; (2) assessment among workers; and (3) relevance to mild to moderate disorders. Of 13 instruments reviewed, six measures were tested among workers. The three best measures, depending on the purpose of research, included the standardised Nordic Musculoskeletal Questionnaire, the Upper Extremity Questionnaire, and the Neck and Upper Limb Instrument. Development of a functional protocol is regarded as a realistic enhancement for research of neck and upper extremity disorders in the workplace. For research and clinical practice, measures of functional status, sensitive enough to measure the subtle conditions in mild to moderate disorders, may provide prognostic information about the risk of developing musculoskeletal disorders in apparently healthy patients. Appropriate use of functional status questionnaires is imperative for a meaningful portrayal of health.

Systematic evaluation of rating scales for impairment and disability in Parkinson's disease

We assessed the clinometric characteristics of rating scales used for the evaluation of motor impairment and disability of patients with Parkinson's disease (PD), conducting a systematic review of PD rating scales published from 1960 to the present. Thirty studies describing clinometrics of 11 rating scales used for PD were identified. Outcome measures included validity (including factor structure), reliability (internal consistency, inter-rater, and intrarater) and responsiveness. We traced three impairment scales (Webster, Columbia University Rating Scale [CURS] and Parkinson's Disease Impairment Scale), four disability scales (Schwab and England, Northwestern University Disability Scale [NUDS], Intermediate Scale for Assessment of PD, and Extensive Disability Scale), and four scales evaluating both impairment and disability (New York University, University of California Los Angeles, Unified Parkinson's Disease Rating Scale [UPDRS], and Short Parkinson Evaluation Scale). The scales showed large differences in the extent of representation of items related to signs considered responsive to dopaminergic treatment or to those signs that appear late in the disease course and lack responsiveness to treatment. Regardless of the scale, there was a conspicuous lack of consistency concerning inter-rater reliability of bradykinesia, tremor, and rigidity. Overall disability items displayed moderate to good inter-rater reliability. The available evidence shows that CURS, NUDS, and UPDRS have moderate to good reliability and validity. In contrast to their widespread clinical use for assessment of impairment and disability in PD, the majority of the rating scales have either not been subjected to an extensive clinometric evaluation or have demonstrated clinometric shortcomings. The CURS, NUDS, and UPDRS are the most evaluated, valid, and reliable scales currently available.

Is global outcome predictable in the rehabilitation of patients with musculoskeletal disorders? A pilot study

Definition of prognostic factors for outcome quality is of increasing interest in rehabilitation medicine. The main question of this pilot study in 552 patients was whether global outcome could be predicted by a team-based chief physician specialized in physical medicine and rehabilitation (PMR), and whether other predictive factors would exist (ICIDH-2 levels, pain, working incapacity). Little data is available about the possibility of global prediction of prognosis in the rehabilitation of patients with musculoskeletal disorders. All 552 patients met each member of the rehabilitation team and key data from each patient was discussed at the rehabilitation conference within the first 2 days. On entry to the study, a chief physician specialized in PMR assessed the patient's key data, which was structured according to ICIDH-2 (ICF) and assessed quantitatively on a scale from zero to ten. Second, the PMR physician rated the expected global prognosis on the basis of ICIDH-2 and other key data, and in respect to the defined rehabilitation goals (see Table 2). At the same time, the patient and an assistant doctor (AD) assessed pain scores (VAS 0-10) and the actual working incapacity (%). These assessments were completed within the first 3 days and were repeated before discharge. Assessment of outcome was rated by both, separately, according to the above-mentioned scale. Different regression models were calculated, searching for significant differences between the numerous variables. In the regression models, the best predictor for outcome was the PMR physician assessment. Complete and good correspondence between prediction and outcome was obtained in 71.4% (42.1% and 29.3%, respectively) in the descriptive model. Quantitatively assessed ICIDH-2 levels, pain at entrance and working incapacity at entrance were not predictive factors for global outcome. The global outcome was rated as very good/good in 79.0% of cases by patient and in 75.1% cases by the AD, as moderate in 13.9% of cases by the patient and 18.4% of cases by the AD, and as poor/worsening in 7.1% of cases by the patient and in 6.5% of cases by the AD. Rating of outcome by the patient and the AD gave complete and good correspondence in 87.6% and no correspondence in only 2.6% of cases. Pain could be reduced highly significantly (P<0.001). There was a highly significant degree of correlation between quality of outcome and pain relief (outcome 'very good' and 'good', P<0.001; 'moderate', P=0.003; 'poor/worsening', not significant). Partial or complete reduction of working incapacity could be reached in 30% of the patients. This had no statistical influence on global outcome; neither did persistent working incapacity. Prediction of global outcome by a team-based PMR assessment seems to be a useful semiquantitative method with high predictive value. The method, including the critical point of validation, is currently being extensively discussed. Prediction is an integral process based on the high information grade of a multiprofessional rehabilitation team, the ICIDH-2 structures, the definition of rehabilitation goals, the knowledge and experience in bio-psycho-social medicine and the application of common sense. Rating of global outcome by the patient/AD is an integrative process as well. Pain relief is an important and very strong factor, with a high degree of influence on global outcome in musculoskeletal rehabilitation, probably by improving quality of life. Working incapacity is no reason for refusing patients rehabilitation and both improvement of working capacity and persistence of working incapacity, has no statistical influence on global outcome. Finally, the extent of the four ICIDH-2 levels, especially negative contextual factors, were not predictive, that is, they had no significant influence on global outcome in this study. In conclusion, prediction of global outcome by a team-based chief physician specialized in PMR is of high predictive value, practicable and useful for rehabilitation processes, quality assurance, insurance companies and health policies. To our knowledge, this is the first published study on this topic.

Uses of evidence in disability outcomes and effectiveness research

Outcomes and effectiveness research is a category of health services research that gauges how well the health care needs of persons with disabilities are being met. Using Patrick's Model of Health Promotion for people with disabilities as a framework for analysis, this article examines outcomes and effectiveness research related to the health care needs of persons with disabilities. The three most pressing research priorities are clear theoretical conceptualizations and qualitative research on health outcomes relevant to the needs of persons with disabilities; a systemic analysis of existing assessment instruments' utility for disability outcomes research; and the development and testing of new outcome instruments.

Measures of outcomes for children and youth

OBJECTIVE

To provide an overview of the issues related to the measurement of disability outcomes among children and on an assessment of selected instruments.

DATA SOURCES

Published scientific English literature in the area of child development, public health, and outcomes research.

STUDY SELECTION

Studies selected were those that provide global measures of health outcomes focusing on children. Those selected allowed data collection to address the effects of intervention on individual children or populations of children. Psychometric characteristics were also a part of the selection process.

DATA EXTRACTION

Specific guidelines for assessing the instruments include the number of scales and index capability, breadth of domains, inclusion of norms, capacity to measure elements of the World Health Organization model of functioning and disability, item and scaling bias, respondent burden, administrative burden, and retest reliability.

DATA SYNTHESIS

Thirteen instruments were included. The measures vary in their utility for broad versus specific applications, eg, clinical and public health uses. Children themselves are often not part of the assessment process. In addition, environmental influences on health outcomes of children are not adequately addressed.

CONCLUSION

Although it is challenging to evaluate outcomes associated with children with disabilities, there are frameworks and instruments that will advance outcome measurement. Approaches that include children should be explored further, and the environmental influences including and beyond the family require further measurement development.