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PubMed2005

Reports of financial disability predict functional decline and death in older patients discharged from the hospital.

BACKGROUND: The financial ability to pay for food and medical care is needed to maintain health in older persons following a serious illness. Therefore, we hypothesize that the inability to pay for basic needs, which we call financial disability, predicts adverse health outcomes in older patients discharged from the hospital. OBJECTIVES: To determine the frequency of reported financial disability in older adults being discharged from a hospital, to determine patient characteristics associated with financial disability, and to examine the relationship between financial disability and functional decline and mortality. DESIGN: Prospective cohort study. SETTING/PARTICIPANTS: Two thousand two hundred patients 70 years and older admitted to the general medicine services at two teaching hospitals in Ohio. MAIN OUTCOME MEASURES: Respondents were interviewed at the time of discharge to determine patients' financial ability to pay for 6 needs: groceries, general bills, medications, medical bills, a small emergency, and a major emergency. We determined functional decline in ability to perform activities of daily living from discharge to 90 days post-hospital discharge, and death 1 year after hospital discharge. RESULTS: Financial disability was reported to be severe (unable to pay for 3-6 needs) for 21% of patients and moderate (unable to pay for 1-2 needs) for 36%. Financial disability was more common and more severe (P<.001) in persons with an annual household income less than $10,000, in persons with fewer than 12 years of formal education, in African Americans, and in women. In patients with no financial disability, moderate financial disability, and severe financial disability, functional decline 3 months after hospital discharge occurred in 15%, 20%, and 25%, respectively (P=.001), and 1-year mortality rates were 24%, 27%, and 32%, respectively (P=.002). After adjustment for potential confounders, the association of financial disability with functional decline (P=.003) and mortality (P=.02) remained significant. CONCLUSION: Reports of financial disability at hospital discharge identified vulnerable older adults with increased risk for functional decline and death. Interventions that alleviate financial disability may improve health outcomes in older adults discharged from hospital.

Activities of Daily Living↗

PubMed2001

Risk factors for work disability in patients with ankylosing spondylitis.

OBJECTIVE: To identify risk factors for work disability in patients with ankylosing spondylitis (AS). METHODS: Risk factors for permanent work disability and for receipt of disability payments were assessed using Cox regression models in a retrospective cohort study of 234 patients with AS. Candidate risk factors included age at onset of AS, sex, race, education level, marital status, the presence of comorbid conditions, smoking and drinking history, recreational activity, occupation, and physical activity at work. Risk factors for changes in the type of work performed, decrease in number of hours worked, long sick leave, and the need for help at work were assessed using logistic regression models in a prospective study of the subset of 144 patients who reported working for pay during the study. Candidate risk factors for these aspects of work disability were age, sex, race, education level, levels of functional disability, pain and stiffness, changes in functional disability, pain or stiffness over the preceding 6 months, minutes/week of recreational exercise, back exercises, freedom of movement at work, control over the pace of work, and physical activity at work. RESULTS: In a cohort of 234 patients with a median duration of AS of 21.4 years, 31 patients (13.2%) developed permanent work disability and 57 patients (24.3%) had received disability payments. Older age at onset of AS, less formal education, and having had jobs that were more physically active were significant risk factors for permanent work disability. These factors, along with the presence of a comorbid condition and being female, were also significantly associated with the receipt of disability payments. In a prospective study of 144 patients followed for a median of 4 years, higher levels of functional disability and pain were associated with increased risks of decreased work hours, long sick leaves, and needing help at work, while higher levels of pain were also associated with an increased risk of changing the type of work performed. Women were significantly more likely than men to change their type of work or decrease their work hours. Patients whose jobs were more physically demanding were more likely to change their type of work or need help at work. CONCLUSION: Patients with AS who have physically demanding jobs are more likely to experience permanent or temporary work disability, or need to change the type of work done or receive help at work, than those with jobs that are less physically demanding.

Adult↗

PubMed2004

Recovery from disability among community-dwelling older persons.

CONTEXT: Previous studies have found that a sizeable minority of newly disabled older persons recover independent function; however, long intervals between assessments have led to difficulty in determining the true incidence and duration of disability, and therefore in accurately characterizing the probability and course of recovery. OBJECTIVES: To determine the rate of and time to recovery of independent function in community-dwelling older persons who become newly disabled in their activities of daily living (ADLs), to determine the duration of recovery, and to compare the likelihood of recovery among pertinent subgroups of older persons. DESIGN, SETTING, AND PARTICIPANTS: Prospective cohort study, with monthly assessments of ADL function, for 754 initially nondisabled, community-dwelling persons aged 70 years or older, performed in a small urban area from March 1998 to May 2003. MAIN OUTCOME MEASURES: Demographic features, chronic conditions, cognitive function, and physical frailty were determined during comprehensive assessments at 18-month intervals. Disability, defined as needing personal assistance with 1 or more key ADLs (bathing, dressing, walking, and transferring), was assessed during monthly telephone interviews. RESULTS: A total of 420 participants (56%) experienced disability during a median follow-up of 51 months. Of these participants, 399 (81%) recovered (ie, regained independence in all 4 ADLs) within 12 months of their initial disability episode, and a majority (57%) of these maintained independence for at least 6 months. Among participants who experienced 3 or more consecutive months of disability, a majority (60%) recovered, but only a third of these maintained independence for at least 6 months. Persons who were cognitively impaired, physically frail, or severely disabled (ie, in 3-4 ADLs) at onset were less likely to recover than those who were cognitively intact, nonfrail, or mildly disabled, respectively. Nonetheless, a majority of participants within each subgroup recovered. CONCLUSIONS: Newly disabled older persons recover independent ADL function at rates far exceeding those that have been previously reported. Recovery from disability, however, is often short-lasting, suggesting that additional efforts are warranted to maintain independence in this high-risk group.

Activities of Daily Living↗

PubMed2004

The association between pain and disability.

A clearer understanding of how pain intensity relates to disability could have important implications for pain treatment goals and definitions of treatment success. The objectives of this study were to determine the optimal pain intensity rating (0-10 scale) cutpoints for discriminating disability levels among individuals with work-related carpal tunnel syndrome (CTS) and low back (LB) injuries, whether these cutpoints differed for these conditions and for different disability measures, and whether the relationship between pain intensity and disability was linear in each injury group. Approximately 3 weeks after filing work injury claims, 2183 workers (1059 CTS; 1124 LB) who still had pain completed pain and disability measures. In the LB group, pain intensity rating categories of 1-4, 5-6, and 7-10 optimally discriminated disability levels for all four disability measures examined. In the CTS group, no pain intensity rating categorization scheme proved superior across all disability measures. For all disability measures examined, the relationship between pain intensity and disability level was linear in the CTS group, but nonlinear in the LB group. Among study participants with work-related back injuries, when pain level was 1-4, a decrease in pain of more than 1-point corresponded to clinically meaningful improvement in functioning, but when pain was rated as 5-10, a 2-point decrease was necessary for clinically meaningful improvement in functioning. The findings indicate that classifying numerical pain ratings into categories corresponding to levels of disability may be useful in establishing treatment goals, but that classification schemes must be validated separately for different pain conditions.

Adult↗

PubMed2003

Emplotting children's lives: developmental delay vs. disability.

While it is increasingly possible to envision "perfect" babies, it is not always the case that reproduction actually proceeds according to individual will; for example, there has been no recent reduction in rates of childhood disability. Nevertheless, in most studies of new reproductive technologies, the birth of those children whom few would actively choose-"defective" or disabled infants-is presented only in hypothetical terms. This paper argues for expanding the domain of reproduction to include research on the parenting of children with disabilities. Based on a qualitative research project carried out at a hospital-based newborn follow-up program that serves as an evaluation site determining eligibility for early intervention services for infants and young children with disabilities, this paper focuses on a particular part of women's experience of acquiring new knowledge about personhood and disability, that is, on the period of time when a woman has recently had confirmed that reproduction has, in her case, gone awry. Disability in many cultures, including the United States, diminishes personhood. I suggest that American mothers' narratives, by utilizing the concept of developmental delay, can assert personhood, or rather, the potential for its future attainment; in doing so, they justify ongoing nurturance of a disabled child in spite of negative attitudes about disability. A particular case of one mother's emplotment of her child's life within a story of developmental delay, in competition with the physician's story of disability, is analyzed. The paper concludes with reflections on how stories of developmental delay told by mothers just encountering a diagnosis of disability may differ from the stories told by those who have experienced mothering a disabled child over time, and on the implications of these differences for the cultural construction of personhood in the United States.

Adaptation, Psychological↗

PubMed2000

Current and residual functional disability associated with psychopathology: findings from the Netherlands Mental Health Survey and Incidence Study (NEMESIS).

BACKGROUND: Few population studies have investigated the functional disabilities that accompany specific psychiatric diagnoses. This study assesses the nature and strength of current and residual impairments in various functional domains of life. METHODS: Data were derived from the Netherlands Mental Health Survey and Incidence Study (NEMESIS), a prospective study in the Dutch general population aged 18 to 64 (N = 7147). Psychiatric diagnoses were based on the Composite International Diagnostic Interview; functional disability was assessed on the basis of the Short-Form-36 and the number of disability days. RESULTS: Psychopathology was associated with increased disability in social, emotional and physical domains of life. Disability levels varied by psychiatric diagnosis, with mood disorders showing the poorest levels of functioning, especially for vitality and social functioning; alcohol-related disorders were associated with few disabilities. Co-morbidity strongly aggravated the disability. The effect of contextual factors on disability was limited, although somatic ill health, unemployment and adverse youth history increased the likelihood of functional disability. The findings indicate that psychopathology can also have residual debilitating effects. CONCLUSIONS: Mental health care providers should be aware that the extent and the type of disability may vary with the different types of disorders and among different groups within the population. Since recovery from functional limitations may not be complete or may take more time than the remission of the psychiatric symptomatology, non-psychiatric follow-up care is needed. The high number of lost work days is relevant from an economic perspective. There is a need for illness-specific disability assessment instruments.

Activities of Daily Living↗

PubMed1998

Aging, health risks, and cumulative disability.

BACKGROUND: Persons with lower health risks tend to live longer than those with higher health risks, but there has been concern that greater longevity may bring with it greater disability. We performed a longitudinal study to determine whether persons with lower potentially modifiable health risks have more or less cumulative disability. METHODS: We studied 1741 university alumni who were surveyed first in 1962 (average age, 43 years) and then annually starting in 1986. Strata of high, moderate, and low risk were defined on the basis of smoking, body-mass index, and exercise patterns. Cumulative disability was determined with a health-assessment questionnaire and scored on a scale of 0 to 3. Cumulative disability from 1986 to 1994 (average age in 1994, 75 years) or death was the measure of lifetime disability. RESULTS: Persons with high health risks in 1962 or 1986 had twice the cumulative disability of those with low health risks (disability index, 1.02 vs. 0.49; P<0.001). The results were consistent among survivors, subjects who died, men, and women and for both the last year and the last two years of observation. The onset of disability was postponed by more than five years in the low-risk group as compared with the high-risk group. The disability index for the low-risk subjects who died was half that for the high-risk subjects in the last one or two years of observation. CONCLUSIONS: Smoking, body-mass index, and exercise patterns in midlife and late adulthood are predictors of subsequent disability. Not only do persons with better health habits survive longer, but in such persons, disability is postponed and compressed into fewer years at the end of life.

Activities of Daily Living↗

PubMed2005

Brief report: Physician discomfort and variability with disability assessments.

BACKGROUND: Completing a disability assessment is a common physician task; yet, little formal training is available. OBJECTIVE: To assess physician comfort with disability assessments, and evaluate their consistency. DESIGN: We conducted 2 separate surveys. The "Comfort" survey asked physicians to rate their comfort (1 = very uncomfortable to 10 = very comfortable) with 12 potentially uncomfortable tasks, including disability assessment. The second survey described 2 different patients requesting disability assessment, 1 with acute and the other with chronic back pain; participants assigned each a level of disability. PARTICIPANTS: Resident and staff physicians at an urban county hospital. RESULTS: For 54 physicians returning "Comfort" surveys, disability assessment had the lowest average comfort rating (4.3, SD 1.9) compared with all other tasks (mean ratings ranged from 4.8 to 8.0). For the 73 physicians returning the "Disability Cases" survey, 88% found Case 1 qualified for limited employment, but varied on the types of limitations imposed. For Case 2, 39% assigned no disability, 39% limited employment, and 22% full disability. CONCLUSIONS: Our pilot studies support the hypothesis that physicians are not comfortable with disability assessment, and their assessments can be highly variable. Physician discomfort and lack of training may contribute to variability in disability assessments.

Adult↗

PubMedDate not supplied

Physical fitness related to disability in older persons.

BACKGROUND: In today's aging society, preventing or reducing disability is important. Physical activity may serve this goal. Generally, physical activity aims to enhance physical fitness, which in turn may prevent disability. The relationship between physical fitness and disability has been much less explored than the relationship between physical activity and physical fitness. OBJECTIVE: To investigate the relationship between separate components of physical fitness and disability. METHODS: The subjects were a community-based sample of 176 men and 233 women aged 65 years or older. Physical fitness was assessed with performance-based tests. Disability and potential confounders were assessed during face-to-face interviews. RESULTS: Independently of other fitness components, walking endurance, grip strength, manual dexterity and balance contributed significantly to the prediction of disability for both men and women. Flexibility of the hip and spine, flexibility of the shoulder and reaction time were not independent predictors of disability for men or women. Physical fitness explained a greater percentage of variance in disability for women (31-48%) than for men (14-34%). Although depressive symptoms, cognitive functioning (men), number of chronic conditions (women) and age (women) explained additional variance in disability, these variables did not confound the relationship between physical fitness and disability. CONCLUSION: Walking endurance, grip strength and manual dexterity are important unique predictors of disability. Physical activity programs should be directed at these fitness components.

Activities of Daily Living↗

PubMed1996

Psychological characteristics of mothers of children with disabilities.

The purpose of this study was to investigate the psychological characteristics of mothers of children with disabilities. This study was performed under the hypotheses that, at the initial diagnosis of the children's disabilities, (1) the mothers suffered from serious psychological distress; (2) the more severe the child's disability was, the more serious the mother's psychological distress was; and that (3) the mother's psychological distress might be resolved within 8 weeks of rehabilitational interventions. The results were as follows: 1) mothers of children with disabilities showed significant (p < 0.05) somatization, depression, anxiety, hostility, and phobic anxiety more so than the control group; 2) there was no significant difference in T scores of 9 dimensions of the Symptom Checklist-90-Revision (SCL-90-R) of the mothers at the initial diagnosis of children's disabilities according to severity of child's disability; 3) there was no significant difference in T scores of 9 dimensions of SCL-90-R in mothers of children with disabilities between at initial evaluation and after 8 weeks of rehabilitational interventions. In conclusion, : 1) mothers of children with disabilities suffered from serious psychological distress at the initial diagnosis of their child's disability; 2) the severity of the child's disability had little influence on the degree of the mother's initial psychological distress; 3) this distress did not resolve with only 8 weeks of rehabilitational interventions. Therefore, effective rehabilitational programs should provide sufficient opportunities for repeated follow-up interviews which offer not only adequate information on the children's disabilities but also psychological support for the mothers.

Adult↗

PubMed2000

[Correlation of diseases and disabilities and allocation and modes of transport among the members of an association of patients with neuromuscular diseases. For the Association Suisse Romande contre la Myopathie].

Seventy-nine patients with various chronic neuromuscular disorders returned a questionnaire. We analyzed the linkage between demographic and socio-economic data, type of disease and disability, and types of transportation used. This study shows that whatever type of disability, all patients attach a significant priority to the use of their private vehicle, and that (i) there is a significant correlation between severity of disability and use of disabled people transportation system but not with revenue nor with type of professional activity, and (ii) satisfaction rate is inversely proportional to severity of disability. The relationship between disability and disabled people transportation system appears as logical, but those between revenue and type of transportation is rather complex (role of family, of special refunds from insurance industry, possibility of special loans from the patient organization). The absence of correlation between severity of disability and professional activity must be explained by our choice concerning the scale of disability, which appears too simplistic according to the complexity of the different neuromuscular disorders. It is concluded that (i) co-operation and consultation are needed to give patients better access to disabled people transportation system and to improve technical aids to drive private vehicle and (ii) a more appropriated scale to quantitate disability in neuromuscular disorder patients is needed.

Adolescent↗

PubMed2003

Screening for disability in a community: the 'ten questions' screen for children, in Bondo, Kenya.

BACKGROUND: Although the need for early identification and interventions of disabilities is evident, the current state of routine screening practice in Kenya needs intensive training of screeners before more rigorous techniques are introduced. OBJECTIVE: To compare the precision and practical utility of the 'ten questions' and EARC screens among the 2- 9 year olds in a community setting. METHOD: In this analytical comparative cross-sectional survey of two disabilities screening methods. multiphase sampling and multistage data collection procedures were employed. Quantitative research utilizing structured interview checklist was used for data collection. It described the prevalence rates of different types of disabilities using both methods. It analyzed the precision and practical utility of the two methods in a community setting. RESULTS: 64 of the 399 children under study were disabled (50.5% male and 49.5% female). The 'ten questions' picks up only those problems that are of great concern to families. EARC services are a more definite case defining process of measuring the existence and degree of disability in children. It screens the children who are severely disabled leaving out the mildly disabled and medical conditions which, when left untreated, could lead to possible disablement. CONCLUSION: Parents need to be sensitized about symptoms requiring the ten questions that can be used to screen out the potentially disabled children and the Education Assessment and Resource Centres (EARC) be used to diagnose the type and degree of the disability and refer the ill children for treatment. The basic needs of disabled children could be met in the community and do not require highly specialized personnel. They need to be localized and accessible.

Child↗

PubMed2003

[Socioeconomic risk indicators for disability pension within the Danish workforce. A registry-based cohort study of the period 1994-1998].

INTRODUCTION: The aim was to identify socio-economic risk indicators among the Danish work force (aged 18 to 59) for being granted disability pension. MATERIAL AND METHODS: A closed cohort study based on a random 10% sample of the Danish workforce defined in 1994 and followed in registers from 1995 to 98 for disability pension. The study population included 254,905 persons. Citizens in Denmark have a unique personal identification number so socio-economic data at individual levels from Statistics Denmark were linked with the Disability Pension Registry. All persons but 39 could be traced throughout the study or until the event of disability pension, emigration or death. Cox regression was used to calculate the hazard rate ratio of being granted disability pension. RESULTS: 4443 persons were granted disability pension. The risk of being granted disability pension increased significantly with low social class. Comparing unskilled workers to managers showed that workers had 1.6 (95% confidence interval: 1.4-1.9) times greater risk of disability pension. For female unskilled workers the risk was 1.9 (1.6-2.2). Men with seven years' schooling had 3.1 (2.3-4.3) times higher risk of disability pension than men with a university degree, and women with seven years' schooling had 3.8 (2.5-5.8) greater risk. Having been on sick leave more than 13 weeks compared to sick leave less than four weeks increased the risk by 11.5 (10.1-13.1) for men and 11.2 (9.9-12.8) for women. High age, unemployment, living alone and receiving social benefits were also risk indicators for disability pension. DISCUSSION: The study identified reliable estimates of socioeconomic risk indicators, e.g. low level of education, low social class, and unemployment for leaving the workforce with disability pension.

Adolescent↗

PubMed2005

[A cross-sectional study on prevalance and risk factors of disabilities in aged 0-6 years children in Beijing, China].

OBJECTIVE: To explore the epidemiological status of disabilities on vision impairment (VI), hearing loss (HL), mental retardation (MR), autism spectrum disorder (ASD) and motor disorder (MD) in aged 0-6 years old children in Beijing. METHODS: A total of 28 738 children under 7 years old were recruited from permanent residents of Beijing City by 2-phase cluster sampling. The screening procedure was 2-phase, and the diagnosis criteria were developed by the experts group. RESULTS: The overall disability rate was 11.45 per thousand (95 % CI:10.22-12.68). The false negative rates in HL and ASD were 0.14 per thousand, 0.80 per thousand, respectively, with a adjusted overall rate of 12.19per thousand. The prevalence rates of different kind disabilities from high to low were MR 9.31per thousand, MD 2.12per thousand, ASD 1.53per thousand (0.73per thousand before adjusted), HL 1.04per thousand (0.91per thousand before adjusted) VI 0.73per thousand. The results of logistic regression analysis showed that the possible non-biological risk factors for those disabilities were being male, living in city area, advancing age, mother with low education, mother engaged in labor work, and family with low income. It was primarily (49.62%) those prenatal factors other them the known suspected factors that causing disabilities. CONCLUSIONS: Compared with data from a countrywide study in 1987, the overall disability rate had a mild decrease (16.36%) with the most (56.85%) appeared in HL. It is indispensable to establish a disabilities surveillance program for the early recognition and intervention of children with disabilities. It is also crucial to clarify a disability definition for children combined with their characteristics of growth and development. We strongly recommended in developing a new definition on children' disabilities and establishing new criteria according to the contents of developmental disabilities of Center for Disease Control, USA.

Age Distribution↗

PubMed1994

Quantifying disability: data, methods and results.

Conventional methods for collecting, analysing and disseminating data and information on disability in populations have relied on cross-sectional censuses and surveys which measure prevalence in a given period. While this may be relevant for defining the extent and demographic pattern of disabilities in a population, and thus indicating the need for rehabilitative services, prevention requires detailed information on the underlying diseases and injuries that cause disabilities. The Global Burden of Disease methodology described in this paper provides a mechanism for quantifying the health consequences of the years of life lived with disabilities by first estimating the age-sex-specific incidence rates of underlying conditions, and then mapping these to a single disability index which collectively reflects the probability of progressing to a disability, the duration of life lived with the disability, and the approximate severity of the disability in terms of activity restriction. Detailed estimates of the number of disability-adjusted life years (DALYs) lived are provided in this paper, for eight geographical regions. The results should be useful to those concerned with planning health services for the disabled and, more particularly, with determining policies to prevent the underlying conditions which give rise to serious disabling sequelae.

Adolescent↗

PubMed2003

Quality dimensions that most concern people with physical and sensory disabilities.

BACKGROUND: People with physical and sensory disabilities face important challenges in obtaining high-quality health care. We examined whether persons who are blind or have low vision, who are deaf or hard of hearing, or who have mobility impairments or manual dexterity problems are satisfied with the technical and interpersonal aspects of their care. METHODS: By using a 1996 nationally representative survey of 16 403 community-dwelling elderly and disabled Medicare beneficiaries, we identified persons with disabling conditions. Adjusted odds ratios (AORs) and 95% confidence intervals (CIs) controlled for demographic characteristics and managed care membership in predicting dissatisfaction with 12 dimensions of care. RESULTS: Of an estimated 33.58 million noninstitutionalized Medicare beneficiaries, 64.1% (an estimated 21.51 million) reported at least 1 potential disability and 29.5% (an estimated 9.89 million) reported more than 1 potential disability. Roughly 98% of people with and without disabilities believed their physicians were competent and well trained. But statistically significantly more people with disabilities reported dissatisfaction with care for 10 of the 12 quality dimensions. Persons reporting any major disability were more likely to be dissatisfied with physicians completely understanding their conditions (AOR, 2.4; 95% CI, 1.9-3.1), physicians completely discussing patients' health problems (AOR, 2.4; 95% CI, 1.9-2.9), physicians answering all patients' questions (AOR, 2.3; 95% CI, 1.7-3.1), and physicians often seeming hurried (AOR, 1.6; 95% CI, 1.4-1.9). CONCLUSIONS: Persons with disabilities generally reported positive views of their care, although they were significantly more likely to report poor communication and lack of thorough care. These findings held regardless of the disabling condition. Thoughtful systematic approaches are required to improve communication and to reduce time pressures that might compromise the health care experiences of people with disabilities.

Adolescent↗

PubMed1994

Common mental disorders and disability across cultures. Results from the WHO Collaborative Study on Psychological Problems in General Health Care.

OBJECTIVE: To examine the impact of common mental illness on functional disability and the cross-cultural consistency of this relationship while controlling for physical illness. A secondary objective was to determine the level of disability associated with specific psychiatric disorders. DESIGN: A cross-sectional sample selected by two-stage sampling. SETTING: Primary health care facilities in 14 countries covering most major cultures and languages. PATIENTS: A total of 25,916 consecutive attenders of these facilities were screened for psychopathology using the General Health Questionnaire (96% response). Screened patients were sampled from the General Health Questionnaire score strata for the second-stage Composite International Diagnostic Interview administered to 5447 patients (62% response). MAIN OUTCOME MEASURES: Patient-reported physical disability, number of disability days, and interviewer-rated occupational role functioning. RESULTS: After controlling for physical disease severity, psychopathology was consistently associated with increased disability. Physical disease severity was an independent, although weaker, contributor to disability. A dose-response relationship was found between severity of mental illness and disability. Disability was most prominent among patients with major depression, panic disorder, generalized anxiety, and neurasthenia; disorder-specific differences were modest after controlling for psychiatric comorbidity. Results were consistent across disability measures and across centers. CONCLUSIONS: The consistent relationship of psychopathology and disability indicates the compelling personal and socioeconomic impact of common mental illnesses across cultures. This suggests the importance of impairments of higher-order human capacities (eg, emotion, motivation, and cognition) as determinants of functional disability.

Adolescent↗

PubMed1999

How much disability in rheumatoid arthritis is explained by rheumatoid arthritis?

OBJECTIVE: To measure the proportion of disability explained by disease manifestations compared with nondisease factors in rheumatoid arthritis (RA). METHODS: A hypothetical model of the disablement process specific for RA was constructed using the demographic, sociocultural, and clinical characteristics of a consecutive cohort of RA patients. Disability was measured with the modified Health Assessment Questionnaire (M-HAQ) and the physical function scale of the Medical Outcomes Study Short Form 36 (SF-36) questionnaire. Independent variables, grouped according to their position in the RA disablement process model, were sequentially entered in a series of hierarchical regression models. The proportion of variance in disability explained by each group of variables was measured by the group's incremental R2. RESULTS: The overall proportion of disability explained by the full model was 59%. Factors in the main disease-disability pathway explained 33%, of which 3% was explained by disease duration, 5% by the Westergren erythrocyte sedimentation rate, 14% by articular signs and symptoms, and 11% by performance-based functional limitations. External modifiers and contextual variables explained 26% of the variance in disability, of which age and sex accounted for 2%, formal education 4%, psychological status 17%, and symptoms of depression 3%. CONCLUSION: Both the main disease-disability pathway and factors external to this pathway contribute significantly to disability in RA. These findings provide evidence of the relative influence of psychosocial factors, compared with disease manifestations, on the disability of patients with RA.

Adult↗