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Biomedical subjects

J P Hirdes

Publications and source records attributed to J P Hirdes.

At least 19 recordsLinked to original sources
PubMed2001

Traffic-related fatalities among older drivers and passengers: past and future trends.

PURPOSE OF THE STUDY: This study was initiated to forecast the number of older drivers and passengers who may be fatally injured in traffic crashes in future years. DESIGN AND METHODS: The study was based on data from the U.S. Fatality Analysis Reporting System covering the period from 1975 to 1998. Projections were based on least squares regression models. RESULTS: About 35,000 drivers and passengers died in traffic crashes each year from 1975 to 1998. Older adults (65 and older) accounted for 10% of all fatalities in 1975, 17% in 1998, and a projected 27% by 2015, the same proportion predicted for drivers and passengers aged younger than 30. On the basis of these projections, the number of fatally injured women and men aged 65 and older will increase respectively by 373% and 271% between 1975 and 2015. IMPLICATIONS: If current trends continue, the number of fatalities among older drivers and passengers and those aged younger than 30, may be equivalent early in this century. These projections call for further research into conditions that may lead to crashes involving older drivers and for the development and implementation of initiatives to curb traffic-related fatalities among older adults.

Accidents, Traffic↗
PubMed2001

Pain and cognitive status among nursing home residents in Canada.

BACKGROUND: There is little information available on the rates of pain in institutionalized elderly persons, and this is particularly true for Canada. OBJECTIVES: To provide information about the prevalence and clinical correlates of pain in a sample of Canadian nursing homes, to determine whether residents with cognitive impairment experience lower rates of health conditions associated with pain (eg, arthritis) than residents without cognitive impairment and to determine whether the associations (ie, odds ratios) for pain with such health conditions vary as a function of cognitive status. DESIGN: The study is based on a secondary analysis of data collected with the minimum data set (MDS 2.0). SETTING AND PARTICIPANTS: The study comprised 3195 nursing home residents in Ontario, Manitoba and Saskatchewan. SUBJECTS AND METHODS: All residents were assessed with the MDS 2.0 by trained clinicians (usually nurses). Pain was documented if it had occurred within the seven days before the assessment. Assessors were trained to look for overt signs of discomfort, such as wincing or verbalizations. Self-report ratings were obtained when possible. RESULTS: The overall prevalence of pain in this sample was 49.7%, and 23.7% of residents experienced pain daily. Persons with and persons without cognitive impairments did not differ with respect to the prevalence of conditions likely to cause pain and the associations of pain with such health conditions. Regional differences were found, with Ontario residents having a higher frequency and intensity of pain than their counterparts in Saskatchewan and Manitoba. This may be due, at least in part, to regional differences in nursing home admission criteria. CONCLUSIONS: The findings suggest that the prevalence of identified pain is lower among nursing home residents with higher levels of cognitive impairment. These results do not support the notion that this is a function of lower prevalence rates of pain-causing conditions in nursing home residents with dementia. Furthermore, the results do not support the view that residents with cognitive impairments are less sensitive to pain. This study highlights the need for more comprehensive tools to assess pain in persons with cognitive impairments. Nonetheless, the MDS may be a useful instrument for detecting pain in such populations, because it does not rely exclusively on self-report.

Aged↗
PubMed2001

Long-term care funding in Canada: a policy mosaic.

When Canada was founded, health care was delegated as a provincial responsibility. Although the federal government shares a portion of health care costs, it is not directly responsible for the planning, delivery, and governance of health services. The 1984 Canada Health Act set national standards for the provision of physician and hospital services, but it does not apply to home care and long-term care facilities. Consequently, each province has established a unique approach to long-term care, resulting in a health policy mosaic. This paper examines different approaches to funding long-term care with a particular emphasis on the impacts of regionalization and of the implementation of case-mix-based funding systems.

Aged↗
PubMed2001

[Integrated health information system based on Resident Assessment Instruments].

The paper explores the meaning of Resident Assessment Instruments. It gives a summary of existing RAI instruments and derived applications. It argues how all of these form the basis for an integrated health information system for "chain care" (home care, home for the elderly care, nursing home care, mental health care and acute care). The primary application of RAI systems is the assessment of client care needs, followed by an analysis of the required and administered care with the objective to make an optimal individual care plan. On the basis of RAI, however, applications have been derived for reimbursement systems, quality improvement programs, accreditation, benchmarking, best practice comparison and care eligibility systems. These applications have become possible by the development on the basis of the Minimum Data Set of RAI of outcome measures (item scores, scales and indices), case-mix classifications and quality indicators. To illustrate the possibilities of outcome measures of RAI we present a table and a figure with data of six Dutch nursing homes which shows how social engagement is related to ADL and cognition. We argue that RAI/MDS assessment instruments comprise an integrated health information system because they have consistent terminology, common core items, and a common conceptual basis in a clinical approach that emphasizes the identification of functional problems.

Aged↗
PubMed2001

A new assessment for elders admitted to acute care: reliability of the MDS-AC.

Assessment of older people rarely includes functional domains critical for ensuring optimum outcome of treatment in acute hospital care. We report the development of a new assessment instrument, and illustrate how differences between pre-hospital and hospital admission status can be systematically evaluated using the Minimum Data Set for Acute Care (MDS-AC). Content was developed by literature review and consultation with professionals working in acute areas. Dual independent assessments were conducted on hospital in-patients in 4 countries. Inter-assessor reliability coefficients were calculated for each item. Kappa was calculated for all binary and multi-level nominal variables. Quadratically weighted Kappa was estimated for all ordinal multi-level variables. Where one level of the variable contained 90% or more of the subjects, total observed agreement is reported. Separate reliability estimates were calculated for pre-hospitalization and inpatient items. Subjects had a mean age of 78. Completion of pre-hospitalization and hospital period assessment (combined) required 20 and 30 minutes. Excluding items for which 90% or more of subjects were classified into a single scoring level, average inter-assessor reliability coefficient for the pre-hospital period items was 0.57 and for in hospital 0.58. Overall exact agreement was 83% for pre-hospitalization assessment items, and 79% for the in-hospital items. The reliability achieved in the highly unstable situation of the acute admission phase is sufficient for use in clinical care and research. Differences in pre-hospital and admission status necessary for case-mix adjusted comparison of outcomes were illustrated. Development of a means for systematically comparing changes in older people during the course of illness is of increasing importance when addressing questions of the appropriate and inappropriate use of medical technology.

Activities of Daily Living↗
PubMed2000

Development of a minimum data set-based depression rating scale for use in nursing homes.

BACKGROUND: depression is common but under-diagnosed in nursing-home residents. There is a need for a standardized screening instrument which incorporates daily observations of nursing-home staff. AIM: to develop and validate a screening instrument for depression using items from the Minimum Data Set of the Resident Assessment Instrument. METHODS: we conducted semi-structured interviews with 108 residents from two nursing homes to obtain depression ratings using the 17-item Hamilton Depression Rating Scale and the Cornell Scale for Depression in Dementia. Nursing staff completed Minimum Data Set assessments. In a randomly assigned derivation sample (n = 81), we identified Minimum Data Set mood items that were correlated (P < 0.05) with Hamilton and Cornell ratings. These items were factored using an oblique rotation to yield five conceptually distinct factors. Using linear regression, each set of factored items was regressed against Hamilton and Cornell ratings to identify a core set of seven Minimum Data Set mood items which comprise the Minimum Data Set Depression Rating Scale. We then tested the performance of the Minimum Data Set Depression Rating Scale against accepted cut-offs and psychiatric diagnoses. RESULTS: a cutpoint score of 3 on the Minimum Data Set Depression Rating Scale maximized sensitivity (94% for Hamilton, 78% for Cornell) with minimal loss of specificity (72% for Hamilton, 77% for Cornell) when tested against cut-offs for mild to moderate depression in the derivation sample. Results were similar in the validation sample. When tested against diagnoses of major or non-major depression in a subset of 82 subjects, sensitivity was 91% and specificity was 69%. Performance compared favourably with the 15-item Geriatric Depression Scale. CONCLUSION: items from the Minimum Data Set can be organized to screen for depression in nursing-home residents. Further testing of the instrument is now needed.

Adult↗
PubMed1999

Integrated health information systems based on the RAI/MDS series of instruments.

There is a growing need for an integrated health information system to be used in community, institutional and hospital based settings. For example, changes in the structure, process and venues of service delivery mean that individuals with similar needs may be cared for in a variety of different settings. Moreover, as people make transitions from one sector of the healthcare system to another, there is a need for comparable information to ensure continuity of care and reduced assessment burden. The RAI/MDS series of assessment instruments comprise an integrated health information system because they have consistent terminology, common core items, and a common conceptual basis in a clinical approach that emphasizes the identification of functional problems.

Canada↗
PubMed1999

Targeting and quality of nursing home care. A five-nation study.

The objective of this study was to demonstrate that appropriate targeting and quality monitoring of institutional care of the elderly is possible using person-based information on residents of nursing homes. This cross-sectional study used Minimum Data Set (MDS) assessments of nursing home residents in 6 US states, Copenhagen, Reykjavik, and selected locations in Italy and Japan. The outcome measures were life expectancy at age 65, population over 65, percentage over 65's in nursing homes, and clinical characteristics of nursing home residents from a multinational database of RAI/MDS assessments. We found that Japan has the highest life expectancy, and the second lowest expenditure on health care. The United States has the highest expenditure on health care and intermediate life expectancy. Italy has the highest proportion of population over 65 and the lowest proportion of over 65's in nursing homes. Iceland, a relatively young country, has the highest proportion of over 65's in nursing homes. Residents in Italy and the United States had the most severe physical, cognitive and clinical characteristics, those in Iceland the least. There was wide variation in markers of quality of care, with no country either uniformly good or bad across multiple measures. In conclusion, headline statistics comparing nations' percentage of Gross Domestic Product (GDP) spent on health care, age structure of the population, percentage of over 65's in nursing homes and clinical characteristics bear no consistent relationship. Local policy and practice also affect quality of care. Standardized assessment enables comparisons at local, national and international levels making possible further research on targeting and the appropriate use of institutional care, thus permitting a range of efficiency measures to be developed to inform policy.

Aged↗
PubMed1997

A prospective study of falls after benzodiazepine use: a comparison of new and repeat use.

Although research has consistently demonstrated an increased risk for falls and fall-related fractures among persons receiving benzodiazepine (BZD) medications, the association between new as compared with chronic use and fall-related morbidity among different age groups is less clear. The objectives of this prospective cohort study were to examine the associations between BZD sedative and tranquillizer use and fall-related hospitalizations within 28 days of the fill date, and to explore variations in risks among new (after the first prescription) and chronic (after the third prescription) BZD users of different ages. Data were derived from the Saskatchewan Health linked databases for the years 1979-1986. Fall rates increased with age (especially beyond 70 years) and were highest among those receiving BZD sedatives and tranquillizers compared with controls for both new and chronic users. After adjusting for age, sex and selected health and social factors, a significantly increased risk of fall-related hospitalization was found among new BZD sedative (OR=2.8) and tranquillizer (OR=2.0) users compared with controls, and this risk was only slightly reduced among chronic BZD sedative (OR=2.4) and tranquillizer (OR=1.6) users. These risk estimates were consistent across age, with the exception that chronic BZD tranquillizer use remained significant only among those aged 70 years and older.

Journal Article↗
PubMed1997

Development of a crosswalk from the Minimum Data Set 2.0 to the Alberta Resident Classification System.

Ontario has mandated the use of the Minimum Data Set 2.0 (MDS) to classify patients in all chronic care hospital beds as of July 1996. The MDS, widely used in several other jurisdictions, has been shown to have several advantages over other assessment systems. However, Ontario currently classifies residents of homes for the aged and nursing homes under the Alberta Resident Classification System (ARCS). Since there is not a single system to assess the elderly in institutional settings, it is not possible to create a funding system for all institutions based on patient rather than facility characteristics. The author reports on the development of a crosswalk algorithm to compute ARCS levels of care based on clinical items from the MDS. This algorithm may be used to support a transitional approach to move to a funding system for long-term care based on Resource Utilization Groups (RUG-III).

Activities of Daily Living↗
PubMed1997

Comprehensive clinical assessment in community setting: applicability of the MDS-HC.

OBJECTIVE: To describe the results of an international trial of the home care version of the MDS assessment and problem identification system (the MDS-HC), including reliability estimates, a comparison of MDS-HC reliabilities with reliabilities of the same items in the MDS 2.0 nursing home assessment instrument, and an examination of the types of problems found in home care clients using the MDS-HC. DESIGN: Independent, dual assessment of clients of home-care agencies by trained clinicians using a draft of the MDS-HC, with additional descriptive data regarding problem profiles for home care clients. SETTING AND PARTICIPANTS: Reliability data from dual assessments of 241 randomly selected clients of home care agencies in five countries, all of whom volunteered to test the MDS-HC. Also included are an expanded sample of 780 home care assessments from these countries and 187 dually assessed residents from 21 nursing homes in the United States. MEASUREMENTS: The array of MDS-HC assessment items included measures in the following areas: personal items, cognitive patterns, communication/hearing, vision, mood and behavior, social functioning, informal support services, physical functioning, continence, disease diagnoses health conditions and preventive health measures, nutrition/hydration, dental status, skin condition, environmental assessment, service utilization, and medications. RESULTS: Forty-seven percent of the functional, health status, social environment, and service items in the MDS-HC were taken from the MDS 2.0 for nursing homes. For this item set, it is estimated that the average weighted Kappa is .74 for the MDS-HC and .75 for the MDS 2.0. Similarly, high reliability values were found for items newly introduced in the MDS-HC (weighted Kappa = .70). Descriptive findings also characterize the problems of home care clients, with subanalyses within cognitive performance levels. CONCLUSION: Findings indicate that the core set of items in the MDS 2.0 work equally well in community and nursing home settings. New items are highly reliable. In tandem, these instruments can be used within the international community, assisting and planning care for older adults within a broad spectrum of service settings, including nursing homes and home care programs. With this community-based, second-generation problem and care plan-driven assessment instrument, disability assessment can be performed consistently across the world.

Activities of Daily Living↗
PubMed1996

Identifying an appropriate case mix measure for chronic care: evidence from an Ontario pilot study.

With the move toward rate-based funding for chronic care hospitals, a case mix measure that describes chronic care patients in a valid and reliable manner is needed. A pilot study was done in Ontario to evaluate the effectiveness of three classification systems that have been implemented elsewhere. It was recommended that work continue on the basis that Ontario will implement the Resource Utilization Groups (RUG-III) system for activity measurement and funding of chronic care patients.

Chronic Disease↗
PubMed1996

New evidence on benzodiazepine use and falls: the time factor.

The objectives of this prospective study were to calculate incidence rates for fall-related hospitalization, to compare the effect of risk factors among benzodiazepine (BZD) users and unexposed controls, and to examine variations in risks according to length of time following a BZD prescription. Data were derived from Saskatchewan Health linked data bases, leading to information on 468 hospitalizations for injury due to falls among a study population of 321422. Incidence rates per 10000 within 28 days of the prescription fill date were 26.2, 12.1 and 9.0 for BZD sedative users, BZD tranquillizer users and for unexposed controls, respectively. Incidence rates increased with age, and were higher for women than for men. Results from multivariate logistic regression models also showed a greater risk of falling for BZD users but the odds ratio was higher for men than for women. A history of treatment for alcohol abuse was a very strong risk factor for falls among both men (odds ratio, 10.7) and women (odds ratio, 4.3). The highest risk of serious injury due to falls was within 15 days of filling the prescription, with an odds ratio of 3.6 for BZD sedatives and 2.6 for BZD tranquillizers. Risk decreased with further increase of time after the BZD fill date. For the individual BZD, flurazepam and triazolam showed the highest increase in risk with odds ratios of 3.4 and 2.7, respectively, while oxazepam, lorazepam and diazepam showed odds ratios of 2.2, 2.0 and 1.8 (all odds ratios mentioned are statistically significant at p < 0.05).

Accidental Falls↗
PubMed1995

The balance of exchange in instrumental support with network members outside the household.

The exchange of six types of instrumental support with individuals outside the household was examined using data from the 1990 Canadian General Social Survey. The balance of exchange within the network as a whole was considered in relation to age, gender, social class, availability of social relationships, and health status. The findings reveal the complexity of examining the provision and receipt of support simultaneously. Results are generally consistent with propositions under exchange theory regarding the association between age and reciprocity, depending on assumptions made about the nature of exchange. Implications for future research are discussed.

Adolescent↗
PubMed1995

Screening clients for an augmentative and alternative communication clinic: a multitrait-multimethod approach.

The aim of Augmentative and Alternative Communication (AAC) services is to support, enhance, or provide alternative methods of communication for individuals who are not independent verbal communicators. However, relatively little evaluative research has been conducted with adult AAC users. The establishment of Freeport Hospital's AAC Clinic for adults included the development of questionnaires to gather information for the selection and provision of services for its clients. The present study addresses the issue reliability and validity of three novel measures contained within the AAC Clinic's Background Information Questionnaire using a multitrait-multimethod (MTMM) design. Results from this evaluation are discussed in terms of clinical application and policy development.

Adult↗
PubMed1993

The relationship between aging and disease: geriatric ideology and myths of senility.

An ongoing debate in gerontology concerns the relationship between aging and disease. Goodwin, as part of a discussion on the importance of geriatric ideology, argues that age-related disorders like senile dementia of the Alzheimer's type (SDAT) should be regarded as an aging process, while others suggest it is more appropriate to consider it as a disease. This paper comments on the arguments presented by Goodwin and develops these by providing a review of the underlying assumptions concerning aging and disease. The policy relevance and implications for future research are also outlined.

Age Factors↗