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PubMed2006

Improving knowledge about disability transitions by adding retrospective information to panel surveys. Population health metrics.

BACKGROUND: Panel data are often used to estimate key measures of public health, such as years lived with and without disability. Panel surveys commonly measure disability at intervals of one or two years, and occasionally more than two. It is likely that these intervals often include unreported changes in functional status. Unreported changes may bias estimates of disability transition probabilities, which are commonly used to estimate years lived with and without disability. Most surveys do not ask participants about periods with and without disability in the time since they last responded to the survey. We examined a way to improve the usefulness of panel surveys and our understanding of disability processes, by eliciting retrospective disability information. METHODS: Data were from the United States' National Long Term Care Survey. At each wave, this survey asks disabled respondents how long they have been disabled. We tested whether estimates of probabilities predicting changes in disability status can be improved by making use of this retrospective disability information. Methods included embedded Markov Chain analysis, microsimulation, and the Hausman specification test. RESULTS: Estimates based on data that include retrospective information are significantly different from those that use only the more limited information that is contemporaneous to the surveys. They are also more efficient. At age 65, all estimated probabilities for becoming disabled were higher when retrospective information was used, and all probabilities for remaining disabled were lower. Microsimulation revealed that using retrospective information increased the number of functional status transitions. For example, for women the mean number of transitions from nondisabled to disabled or dead was 52.7% greater when retrospective information was added to the analysis. CONCLUSION: Our results suggest that the value of future panel studies for estimating transitions in disability could be notably enhanced by adding a small number of questions asking respondents for details about their disabilities--and lack of disabilities--in the period since a preceding survey wave. Information provided by such questions could substantially improve both the measurement of disability histories and estimates of disability processes.

Journal Article↗

PubMed2004

[Prevalence of disability in Iceland in December 2002.].

OBJECTIVE: To determine the size and main medical and social characteristics of the group of individuals receiving disability benefits in Iceland in December 2002 and compare the results with figures from 1996. MATERIAL AND METHODS: The study includes all those receiving disability benefits on December 1st 2002 and December 1st 1996 as ascertained by the disability register at the State Social Security Institute of Iceland. Information on age and gender distribution of the Icelandic population was obtained. Age-standardized risk ratio between the years 1996 and 2002 was calculated for both pension levels combined and for full disability pension alone. RESULTS: On December 1st 2002 there were 11,791 individuals receiving disability benefits, 7044 women (59.7%) and 4747 men (40.3%). Of these there were 10,960 individuals receiving full disability pension, 6500 women (59.3%) and 4460 men (40.7%). The prevalence of all disability pension was 6.2%; full disability pension 5.8% and partial disability pension 0.4%. The prevalence of disability was lower in the capital region compared with other regions of Iceland among women, but among men there was no significant difference in the prevalence of disability according to residence. The prevalence of disability increased with age. On the whole disability was more common among women than men, but in the age group 16-19 years it was more common among men than women. Mental and behavioural disorders and diseases of the musculoskeletal system and connective tissue were the most prevalent causes of disability. The standardized risk ratio showed a significantly increased risk for both pension levels combined and for full disability pension alone both for men and women in the year 2002 as compared with the year 1996. CONCLUSION: The increase in the prevalence of disability in Iceland between the years 1996 and 2002 is probably mainly due to the introduction of a new method of disability evaluation in 1999 and increased pressure from the labour market, with increasing unemployment and competition. Mental and behavioural disorders are the most common cause of disability in Iceland and there has been a marked increase in disability due to these disorders since 1996.

English Abstract↗

PubMed2006

The epidemiology of bathing disability in older persons.

OBJECTIVES: To quantify the burden of bathing disability over time; to determine whether the burden of bathing disability differs according to age, sex, and physical frailty; and to evaluate the relationship between disability in bathing and disability in other essential activities of daily living (ADLs). DESIGN: Prospective cohort study. SETTING: General community in greater New Haven, Connecticut. PARTICIPANTS: Seven hundred fifty-four community-living older persons aged 70 and older who were nondisabled (required no personal assistance) in four essential ADLs: bathing, dressing, transferring from a chair, and walking inside the house. MEASUREMENTS: Bathing disability, defined as the inability to wash and dry one's whole body without personal assistance, was assessed every month for up to 6 years, along with disability in dressing, transferring, and walking. RESULTS: Over the course of 6 years, 440 participants (58.4%) had at least one episode of bathing disability, and 266 (34.0%) had multiple episodes, with the duration of each episode averaging about 6 months. Whether assessed as number of episodes, duration of episodes, incidence rates, or number of months per 100 months, the burden of bathing disability was greatest in participants who were physically frail and was consistently higher in women than men and in participants who were aged 80 and older than those who were aged 70 to 79. Most episodes of bathing disability (86.1%) were not preceded in the prior month by disability in dressing, transferring, or walking, and nearly half (48.3%) were not accompanied at onset by disability in one or more of these other ADLs. In a multivariable model that included age, sex, and physical frailty, the onset of bathing disability increased the likelihood of developing disability in the other essential ADLs the following month fivefold (hazard ratio=5.1, 95% confidence interval=4.1-6.4). CONCLUSION: Disability in bathing may serve as a sentinel event in the disabling process. Given the recurrent nature of bathing disability, programs designed to enhance independent bathing will need to focus not only on the prevention of bathing disability, but also on the restoration and maintenance of independent bathing in older persons who become disabled.

Activities of Daily Living↗

PubMed2004

Trends in disability-free life expectancy.

PURPOSE: To assess trends in Disability-Free Life Expectancy, in life expectancy with disabilities according to levels of severity and in Disability-Adjusted Life Expectancy in the Netherlands between 1989 and 2000. METHOD: The disability-free life expectancy, a composite population health status measure, was calculated with data on long-term disability. Weights reflecting the impact of disability on personal functioning were assigned to different levels of severity of disability, in order to calculate a Disability-Adjusted Life Expectancy and to define cut-off points, in order to distinguish between levels of severity. RESULTS: At an aggregated level, for both males and females at the ages of 16 and of 65 years, an increase in years with disabilities and a decline in disability-free life expectancy were observed. These trends were mainly caused by a rise in the number of years with mild disabilities, with the number of years with moderate and severe disabilities decreasing. The combined changes have resulted in an increase in the Disability-Adjusted Life Expectancy. CONCLUSION: Trends in disability-free life expectancy and in years with disabilities provide support for a scenario of dynamic equilibrium. The number of years with moderate and severe disabilities has reduced, resulting in an increase in the number of years with minor disabilities. Further research should focus on the underlying causes of the increase of years with minor disabilities.

Adolescent↗

PubMed1994

Burden of disability in a post war birth cohort in the UK.

STUDY OBJECTIVE: To report the prevalence of physical disability in a national sample of 43 year old men and women, and examine the relationship between disability and the consumption of hospital care. To assess the contribution of childhood health and social circumstances to the risk of adult disability, and the socioeconomic consequences of disability. DESIGN: The assessment of disabilities of physical movement was based on criteria developed by OPCS for their national survey of disability. The analysis used data on socioeconomic circumstances from childhood to 43 years and on serious illness in the first 25 years of life collected prospectively on members of the MRC National Survey of Health and Development, the 1946 birth cohort study. SETTING: England, Wales, and Scotland. PARTICIPANTS: A general population sample of 3235 men and women aged 43 years. MAIN RESULTS: Seven per cent of cohort survivors at 43 years were physically disabled and a further 3% reported difficulties although they were not assessed as disabled according to OPCS criteria. The prevalence of severe disability at this age was similar to that derived from the OPCS survey but the prevalence of mild disability was substantially greater. Disability was associated with a greater use of hospital care in recent years and throughout life. Those who had experienced a serious illness in earlier life were over twice as likely to be disabled; certain conditions, such as polio, were associated with a particularly high relative risk. Those who had had a socially disadvantaged start to life were more likely to be physically disabled at 43 years but the strength of this relationship was considerably weakened by adjustment for later social factors, suggesting that social disadvantage throughout life, or during adult life, increased the risk of disability. Taking these results into account the relative impact of disability on income and employment was found to be greatest for those from the unskilled and semi-skilled classes. CONCLUSIONS: The prevalence of physical disability among those in early middle age may be greater than previously estimated. The strong links between childhood ill health and adult disability and its association with high levels of hospital care support longstanding recommendations for better coordination between child and adult health services. Social disadvantages affects the risk of disability and its financial and employment consequences.

Adult↗

PubMed1999

Onset of disability in depressed and non-depressed primary care patients.

BACKGROUND: While cross-sectional and longitudinal studies have consistently found depressive illness and disability to be related, understanding whether depression leads to subsequent onset of disability is limited. METHODS: In the context of the multi-centre international WHO Collaborative Study on Psychological Problems in General Health Care, we followed prospectively consulting non-elderly primary care patients who were essentially disability free at baseline but who differed in baseline depression status, comprising 1051 patients free of physical disability at baseline including 14% depression; 914 free of social disability including 9% depression. Depression status was assessed with the CIDI; patient-reported physical disability with the MOS physical functioning scale and social disability with the BDQ role functioning and number of disability days measures; investigator-rated social disability with the Occupational section of Groningen Social Disability schedule; and the treating physicians rated the severity of physical illness. RESULTS: In patients essentially disability free at baseline, depressive illness resulted in a 1.5-fold (at 3 months) and a 1.8-fold (at 12 months) increase in risk of onset of physical disability, after controlling for physical disease severity. Depressive illness also resulted in a 2.2-fold (at 3 months) and a 23-fold (at 12 months) increase in risk of onset of social disability, after controlling for physical disease severity, physical disability and onset of physical disability. CONCLUSIONS: Among non-elderly primary care patients, depressive illness is associated with onset of physical disability and shows an even stronger association with onset of social disability.

Adolescent↗

PubMed1992

Disability and depression among high utilizers of health care. A longitudinal analysis.

We evaluated, among depressed medical patients who are high utilizers of health care, whether improved vs unimproved depression is associated with differences in the course of functional disability. At baseline, 6 months, and 12 months, depression and disability were assessed among a sample of enrollees in health maintenance organizations (N = 145) in the top decile of users of ambulatory health care who exceeded the 70th percentile of health maintenance organization population norms for depression. Improved depression was defined as a reduction of at least one third in depressive symptoms averaged across the two follow-up times. At the 12-month follow-up, persons with severe-improved depression experienced a 36% reduction in disability days (79 days per year to 51 days per year) and a 45% reduction in disability score. Persons with moderate-improved depression experienced a 72% reduction in disability days (62 days per year to 18 days per year) and a 40% reduction in disability score. In contrast, persons with severe-unimproved depression reported 134 disability days per year at baseline, while persons with moderate-unimproved depression reported 77 disability days per year at baseline. Neither group with unimproved depression showed improvement in either disability days or disability score during the 1-year follow-up period. High utilizers of health care with severe-unimproved depression were more likely to have current major depression and to be unemployed. Improved (relative to unimproved) depression was associated with borderline differences in the severity of physical disease and in the percent married. We conclude that depression and disability showed synchrony in change over time. However, depression and disability may show synchrony in change with disability because both depression and disability are controlled by some other factor that influences the chronicity of depression (eg, chronic disease or personality disorder). The finding of synchronous change of depression and disability provides a rationale for randomized controlled trials of depression treatments among depressed and disabled medical patients to determine whether psychiatric intervention might improve functional status in such patients. Such research is needed to determine whether there is a causal relationship between depression offset and reductions in functional disability.

Activities of Daily Living↗

PubMed2005

Measures of physical performance and risk for progressive and catastrophic disability: results from the Women's Health and Aging Study.

BACKGROUND: Physical performance measures can predict incident disability, but little research has assessed and compared how these measures predict progressive and rapid-onset (catastrophic) disability. The authors evaluated the ability of upper and lower extremity performance measures to predict progressive and catastrophic disability in activities of daily living (ADL), mobility, and upper extremity function. METHODS: The incidence of progressive and catastrophic disability was assessed semiannually during a 3-year period in 884 women participating in the Women's Health and Aging Study I. Four-meter walking speed, balance, and chair stands tests were used to evaluate lower extremity function. The putting-on-blouse test, the Purdue pegboard test, and grip strength were used to assess upper extremity function. Summary performance scores (SPS) for the lower and upper extremities were calculated. Among participants in whom disability developed, those who reported no difficulty in the previous year were defined as cases of catastrophic disability, and those who previously reported little or some difficulty were considered to be cases of progressive disability. Cox proportional hazard regression analyses were used to evaluate the association of performance measures and time to incident disability. The predictive ability of performance measures was compared using receiver-operator characteristic curves. RESULTS: All lower and upper extremity measures, with the exception of grip strength, significantly predicted the onset of progressive ADL disability, but only walking speed was significantly associated with the onset of catastrophic ADL disability. The chair stands test, walking speed, and the lower extremity SPS were significantly associated with the onset of both progressive and catastrophic mobility disability. Only lower extremity individual tests and SPS significantly predicted the onset of both progressive and catastrophic upper extremity disability. The receiver-operator characteristic curves for ADL and mobility disability showed that all performance measures evaluated had a greater predictive ability for progressive than for catastrophic incident disability. This finding was not consistent for upper extremity disability. The areas under the curve for walking speed and lower extremity SPS were very similar, ranging from 0.58 to 0.81 and from 0.57 to 0.85, and the predictive ability of these two measures was the greatest for all disability outcomes assessed. CONCLUSION: Physical performance measures of lower extremity and, in particular, walking speed and lower extremity SPS are valuable tools to predict different forms of disability, especially those with a progressive onset.

Activities of Daily Living↗

PubMed1996

Self-report of difficulty in performing functional activities identifies a broad range of disability in old age.

OBJECTIVE: To describe a broad range of physical disability by examining the association between a four-level measure of disability, based on self-report of difficulty in performing functional activities, and previously identified risk factors for disability. DESIGN: Cross-sectional. SETTING: Community-based. PARTICIPANTS: A total of 2373 noninstitutionalized men and women aged 65 and older from the Veneto Region of Italy. MEASUREMENTS: Odds ratios for the association of the four levels of disability (none, mild, moderate, and ADL disability) differentiated by this new measure with known risk factors for physical disability. MAIN RESULTS: This summary measure of physical disability distinguished older persons with disability from the population typically classified as nondisabled. Twenty-one percent of study participants were identified as having Activities of Daily Living (ADL) disability (defined as self-report of difficulty in one or more ADLs), and an additional 40% had mild or moderate disability based on degree of difficulty in Instrumental Activities of Daily Living (IADLs) and physical functional activities. Hip fracture and lower extremity performance were strongly independently associated with each level of disability. The association of a range of established risk factors for disability and health care utilization measures with the levels of disability identified in our study, and the trend toward increasing odds with increasing disability, provide evidence of the construct validity of this measure. CONCLUSIONS: Self-report of difficulty in performing functional activities identifies older persons with physical disability not ascertained by self-report of the need for help, the measure typically used to identify disability in older populations. Further studies should evaluate the potential for self-reported difficulty in functional activities to predict important disability-related outcomes.

Activities of Daily Living↗

PubMed1993

Disability in young adults: the role of injuries.

STUDY OBJECTIVES: To describe the prevalence of disability in young adults and estimate the contribution that injuries make to disability. DESIGN: The study uses data from a British longitudinal survey, the National Child Development Study (1958 cohort). Disability at age 23 was ascertained from three questions asked in an interview with cohort members in 1981: these related to longstanding illness that limits activity, permanent disability following an accident after age 16, and registered disability. Lower and upper estimates of the contribution of injuries to disability were derived from ICD-9 codes allocated to the disabilities. SUBJECTS: These comprised 12,537 subjects, representing 76% of the target population, cohort members still alive and resident in Britain in 1981. MAIN RESULTS: Prevalence of disability according to the three definitions was: 46 per 1000 with limiting longstanding illness; 28 per 1000 with a permanent accident related disability of onset after age 16; and 10 per 1000 registered disabled. Combining all three definitions, the overall prevalence of disability was 68 per 1000, with men reporting more disability than women. It was estimated that an injury caused the disability for 16.7% of subjects, at the lower estimate, and 26.0% at the upper estimate (23.1% to 32.1% for men and 8.6% to 18.4% for women). For limiting longstanding illness of onset after 16, between 33.5% and 47.8% was due to an injury. Road accidents caused 31% of permanent accident related disability. Over one half of men and nearly three quarters of women reporting permanent accident related disability had not been admitted to hospital for their injury. CONCLUSIONS: Injuries are an important cause of disability in young adults, particularly injuries resulting from accidents after age 16. Accident prevention in the 16-24 group has the potential to reduce the prevalence of disability substantially.

Accidents↗

PubMed2000

Locomotor disability in a cohort of British men: the impact of lifestyle and disease.

BACKGROUND: Increasing life expectancy has brought public health concern about the increase in prevalence of disability in old age. Reducing the prevalence of disability in older age requires the identification of preventable or modifiable risk factors earlier in life. We have examined the relationship between lifestyle and other potential risk factors in men aged 40-59 years at screening and locomotor disability 12-14 years later to assess whether any of these factors have direct and independent roles in influencing disability in later life. METHODS: In 1978-1980, a longitudinal study of cardiovascular disease was initiated in 7735 men aged 40-59 years drawn from one general practice in each of 24 British towns. The present study concerns 5717 men, 88% of the surviving men who were available to follow-up (i.e. were registered with a GP and had an address) and who satisfactorily completed the disability section of a follow-up postal questionnaire in 1992 (Q92). The main endpoint from the questionnaire was locomotor disability based on self-reported inability in any one or more of the following: to get outdoors, walk 400 m, climb stairs, maintain balance, bend down, or straighten up. RESULTS: In the 5717 men (mean age 63 years) who provided information on disability status, 25.0% reported locomotor disability and the majority of these men recalled a doctor-diagnosed disease of which cardiovascular disease was most strongly associated with locomotor disability. Lifestyle factors at screening (smoking, physical inactivity, obesity and heavy drinking) and manual social class were strongly and independently associated with increased odds of locomotor disability 12-14 years later. By contrast, baseline blood pressure and serum total cholesterol showed little relationship with locomotor disability. Among men with diagnosed major cardiovascular disease (stroke, myocardial infarction, angina or aortic aneurysm) those with locomotor disability showed significantly higher adverse lifestyle factors at screening than those who were able. Similarly, adverse lifestyle factors were also seen more frequently among disabled men with respiratory disease and among disabled men with other non-cardiovascular conditions than among their able counterparts. CONCLUSIONS: Smoking, obesity, physical inactivity and heavy drinking in middle age are strong predictors of locomotor disability in later life independent of the presence of diagnosed disease. Leading a healthy lifestyle improves survival and reduces the incidence of disease. It also reduces the risk of locomotor disability and increases the odds of being disability-free even in the event of developing major cardiovascular disease.

Adult↗

PubMed1994

The disablement process.

Building on prior conceptual schemes, this article presents a sociomedical model of disability, called The Disablement Process, that is especially useful for epidemiological and clinical research. The Disablement Process: (1) describes how chronic and acute conditions affect functioning in specific body systems, generic physical and mental actions, and activities of daily life, and (2) describes the personal and environmental factors that speed or slow disablement, namely, risk factors, interventions, and exacerbators. A main pathway that links Pathology, Impairments, Functional Limitations, and Disability is explicated. Disability is defined as difficulty doing activities in any domain of life (from hygiene to hobbies, errands to sleep) due to a health or physical problem. Feedback effects are included in the model to cover dysfunction spirals (pernicious loops of dysfunction) and secondary conditions (new pathology launched by a given disablement process). We distinguish intrinsic disability (without personal or equipment assistance) and actual disability (with such assistance), noting the scientific and political importance of measuring both. Disability is not a personal characteristic, but is instead a gap between personal capability and environmental demand. Survey researchers and clinicians tend to focus on personal capability, overlooking the efforts people commonly make to reduce demand by activity accommodations, environmental modifications, psychological coping, and external supports. We compare the disablement experiences of people who acquire chronic conditions early in life (lifelong disability) and those who acquire them in mid or late life (late-life disability). The Disablement Process can help inform research (the epidemiology of disability) and public health (prevention of disability) activities.

Activities of Daily Living↗

PubMed1999

Association of comorbidity with disability in older women: the Women's Health and Aging Study.

There is substantial evidence that physical disability results from chronic diseases and that the number of chronic diseases is associated with the presence and severity of disability. There is some evidence that interactions between specific diseases are of import in causing disability. Beyond arthritis, however, little is known of the disease pairs that may be important to focus on in future research. This study explores the associations between multiple disease pairs and different types of physical disability, with the objective of hypothesis development regarding the importance of disease interactions. The study population comprised a representative sample of 3841 women 65 years and older living in Baltimore, screened for participation in the Women's Health and Aging Study. The study design was cross-sectional. An interviewer-administered screening questionnaire was administered regarding self-reported physical disability in 15 tasks of daily life, history of physician diagnosis of 14 chronic diseases, and MiniMental State examination. Task difficulty was empirically grouped into six subsets of minimally overlapping disabilities, with a comparison group consisting of those with no difficulty in any task subset. Multiple logistic regression models were fit assessing the relationship of major chronic diseases and of interactions of disease pairs with each disability subtype and with any disability, adjusting for confounders. Fourteen percent of the population reported mobility difficulty only; 5%, upper extremity difficulty only; 9%, both of these difficulties but no others; 7%, difficulty in higher function but not self-care tasks; 7%, self-care task difficulty but not higher function tasks; and 15%, difficulty in both higher function and self-care (weighted data). Almost all in the latter three groups had difficulty, as well, in mobility or upper extremity tasks. In regression models, specific disease pairs were synergistically associated with different types of disability. For example, important disease pairs that recurred in their associations with different disability types were the presence of arthritis and visual impairments, arthritis and high blood pressure, heart disease and cancer, lung disease and cancer, and stroke and high blood pressure. In addition, the type of disability that a disease was associated with varied, depending on the other disease that was present. Finally, when interactions were accounted for, many diseases were no longer, in themselves, independently associated with a given type of disability. Partitioning disability into six subtypes was more informative in terms of associations than was evaluating a summary category of "any disability." These findings provide a basis for further hypothesis development and testing of synergistic relationships of specific diseases with disabilities. If testing confirms these observations, these findings could provide a basis for new strategies for prevention of disability by minimizing comorbid interactions.

Activities of Daily Living↗

PubMed1999

Improving return-to-work strategies in the United States disability programs, with analysis of program practices in Germany and Sweden.

The General Accounting Office (GAO) has made recommendations for improving the disability programs by citing practices that have been successful in Germany, Sweden, and the private sector. This issue is important in the United States because the number of disability beneficiaries is growing rapidly, program costs are increasing proportionately, and few disability recipients are leaving the disability rolls to resume work activity. GAO points out that the estimated lifetime savings for removing an additional 1 percent of the disabled beneficiaries from the rolls of the Disability Insurance (DI) and the Supplemental Security Income (SSI) programs each year will ultimately reach $3.0 billion. GAO cites three specific practices as showing the most promise for returning the disabled to work. They are (1) intervening as soon as possible after a disabling event to promote and facilitate return to work, (2) identifying and providing necessary return-to-work assistance and managing cases to achieve return-to-work goals, and (3) structuring cash and health benefits to encourage people with disabilities to return to work. This article examines these suggestions to improve the rate of rehabilitation of disabled workers using research by experts on return-to-work practices in Germany, Sweden, and the United States. Experts caution that any consideration of borrowing practices from other countries needs to take into account the unique economic, social, and political elements in each country. Although other countries appear to be very successful in their rehabilitation programs, practices that are successful in one country may not necessarily work well in another. Countries have different definitions of disability and payment structures. The existence of temporary and partial awards in Germany and Sweden may ensure a number of easily rehabilitated individuals, while the U.S. vocational rehabilitation (VR) agencies have been mandated to focus on only the most severely disabled individuals. Public expenditures for vocational rehabilitation, work for the disabled, and disability benefits are much higher as a percentage of gross domestic product in Germany and Sweden than they are in the United States. Compared with the United States, Germany spent twice as much for VR, and Sweden spent 2.6 times more. Impediments to GAO's suggestions include divergent goals of the Social Security program and VR agencies, lack of availability of VR services, the timing of VR referral (which is significantly later than the onset of the disability), and little incentive for return to work built into the payment structure. The Work Incentives Improvement Act of 1999 is currently being considered by a Congressional conference committee. The bill would establish a Ticket to Work and Self-Sufficiency program and would require or authorize the Social Security Administration to demonstrate and evaluate different ways of encouraging return to work. In designing these demonstrations, early intervention after a potentially disabling illness or injury is an approach that merits serious attention.

Persons with Disabilities↗

PubMed1995

Low back disability among self-employed dentists, veterinarians, physicians and physical therapists in The Netherlands. A retrospective study over a 13-year period (N = 1,119) and an early intervention program with 1-year follow-up (N = 134).

This study was carried out among self-employed dentists, veterinarians, physicians and physical therapists insured against the financial consequences of disability by the insurance company Movir in Nieuwegein, the Netherlands. Disability for an individual was defined as a condition in which someone, due to illness or accident, regardless of the cause, is unable to pursue his/her profession, according to medical assessment. It concerned both short-term and long-term periods of sickness absence. The study consists of two parts: a) A retrospective investigation into the magnitude of the problem of low back disability from 1977 through 1989. b) A test of an early intervention program, introduced in 1990, involving a control group of low back disability claimants of 1987 and 1988 combined. Low back pain was the main cause of disability in 1,119 claims, submitted by 839 claimants. In 795 cases, this involved the first low back disability claim during the whole insurance period. The incidence of low back disability increased by 211 percent, from 3.48 per 1,000 persons at risk in 1977 to 7.35 in 1989. The costs of compensation for low back disability increased from 5.7 percent of the total compensation paid in 1977 to 13 percent in 1989. Nearly a quarter of the claims, all of which lasted longer than six months, accounted for 90 percent of the compensation costs of low back disability. The present study showed that in the case of veterinarians over 34 years of age and dentists over 44 years of age, specific low back pain, nonspecific low back pain in combination with a deferred period of 14 days or more, low back problems before acceptance, and the presence of psychosocial problems at the start of the disability were significantly associated with the duration of low back disability. This means that these "factors" predicted a longer duration. Based on the retrospective data, a predictive model of long-term low back disability was developed, which could be used for secondary prevention among the population studied. At termination of a first claim of low back disability, a deferred period of 30 days or more, and low back surgery at the first claim or before acceptance predicted a longer working period until a recurrence, while low back problems before acceptance had an inverse effect. The retrospective study demonstrated the effect of insurance factors on the incidence and the duration of low back disability, and on the recurrence rate. The higher the insured daily compensation, the higher the risk of claiming low back disability. A deferred period of 14 days or more decreased the risk of claiming low back disability.(ABSTRACT TRUNCATED AT 400 WORDS)

Adult↗

PubMedDate not supplied

Issues related to disability in India: a focus group study.

BACKGROUND: Systematic research into disability has been scarce, especially from India, even though an estimated 5% of the population may have significant disability due to physical disorders. Depression as a common psychiatric disorder affects about 3%-5% of the population. Thus, the impact of disability related to physical, mental and substance use disorders is enormous and it influences resource allocation and policy planning. METHODS: The issues relating to disability were addressed through a qualitative multicentered study. Focus groups were conducted at three sites in Chennai, Bangalore and Delhi on three themes: (i) parity, stigmatization and social participation; (ii) current practices and needs; and (iii) the General Disability Model as proposed by the World Health Organization. The focus groups were homogeneous and included members from six categories of participants: individuals with physical disability, individuals with mental disability, individuals with alcohol/drug-related disability, family members of mentally disabled persons, family members of physically disabled persons and health professionals. In all, 118 groups were conducted with a mean (SD) group size of 8.6 (1.6). RESULTS: Patients with mental and alcohol/drug-related disability were more discriminated against than those with physical disability. Awareness regarding the existing laws and social programmes was uniformly poor across the three centres. Stigmatization was a major reason for under-utilization of the meagre resources available. There was poor awareness of the Disability Act, 1996. The consumers felt more comfortable with the earlier terms of 'handicap' and 'impairment'. CONCLUSIONS: The study has implications for policy planning, clinical decision-making and social behaviour. Awareness of the laws, facilities and programmes needs to be increased, especially regarding the Disability Act, 1996 among consumers as well as health professionals. More disability-friendly facilities are required.

Disability Evaluation↗

PubMed1984

Disabled persons in Poland.

It is generally considered that disability is an important social problem. This was expressed for example by the decision of the United Nations Organisation to nominate 1981 as the International Year of the Disabled. The number of disabled is one of the main problems. For social planning, the proper allocation of goods and resources for changes in the attitudes of society towards disability it is necessary to identify the prevalence, distribution and composition of the disabled. Prior to the 1978 Census, in Poland there was no information available on disability except the number of disabled persons legally classified by the Medical Board for Disability and Employment receiving disability pension, as well as the average amount of such pension, the number of disability certificates issued annually, the number of employed and the number employed in co-operatives for the disabled. The social criterion--major social role associated with psycho-physical state--was the main concept of the investigation on the frequency of disability in 1978 Census. Methodology used in this study of disability was based on the U.S. experience gained from the 1970 NC, as well as on the NCHS Survey of psychophysical causes of permanent limitation of social role performance and locomotion, performed since 1957. It should be explained, however, that the scope of disability investigated in NCHS Survey and in Polish Census is exactly the same and much wider than in U.S. Censuses. The Polish National Census revealed that there are 2,485,001 disabled persons in Poland, i.e. 7.1% of the total population. The urban population constituted 57.7% and the inhabitants of rural areas 42.5% of the total population.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗

PubMed2000

Prevalence, impact, and trends in childhood disability due to asthma.

BACKGROUND: Although not widely recognized as such, asthma is the single most prevalent cause of childhood disability and has contributed to a substantial rise in the overall prevalence of disability among children during the past 25 years. OBJECTIVE: To provide a national profile of the prevalence, impact, and trends in childhood disability due to asthma. (Disability is a long-term reduction in the ability to participate in children's usual activities, such as attending school or engaging in play, due to a chronic condition.) METHODS: We derived our primary findings from a cross-sectional, descriptive analysis of 62171 children younger than 18 years who were included in the 1994-1995 National Health Interview Survey. MAIN OUTCOME MEASURES: Outcome measures include the presence of disability, degree of disability, restricted activity days, school absence days, and use of hospital and physician services. We also used data from the 1969-1970, 1979-1981, and 1994-1995 National Health Interview Surveys to assess trends in the prevalence of disability due to asthma. RESULTS: A small, but significant, proportion of children, estimated at 1.4% of all US children, experienced some degree of disability due to asthma in 1994-1995. Prevalence of disability due to asthma was higher for adolescents (odds ratio [OR], 1.64), black children (OR, 1.66), males (OR, 1.23), and children from low income (OR, 1.46) and single-parent families (OR, 1.37). Disabling asthma resulted in an annual average of 20 restricted activity days, including 10 days lost from school-almost twice the level of illness burden as experienced by children with disabilities due to other types of chronic conditions. Finally, prevalence of disabling asthma, as reported in the National Health Interview Survey, has increased 232% since 1969, the first year that electronic data are available from the survey. In contrast, prevalence of disability due to all other childhood chronic conditions increased by 113% over the same period. CONCLUSIONS: Disabling asthma has profound effects on children. The social costs of asthma are likely to rise in the future if current trends in the prevalence of disabling asthma continue.

Adolescent↗