Len Gray

Quality of life assessment in the community-dwelling elderly: Validation of the Assessment of Quality of Life (AQoL) Instrument and comparison with the SF-36

Measurement of Health-Related Quality of Life (HRQoL) of the elderly requires instruments with demonstrated sensitivity, reliability, and validity, particularly with the increasing proportion of older people entering the health care system. This article reports the psychometric properties of the 12-item Assessment of Quality of Life (AQoL) instrument in chronically ill community-dwelling elderly people with an 18-month follow-up. Comparator instruments included the SF-36 and the OARS. Construct validity of the AQoL was strong when examined via factor analysis and convergent and divergent validity against other scales. Receiver Operator Characteristic (ROC) curve analyses and relative efficiency estimates indicated the AQoL is sensitive, responsive, and had the strongest predicative validity for nursing home entry. It was also sensitive to economic prediction over the follow-up. Given these robust psychometric properties and the brevity of the scale, AQoL appears to be a suitable instrument for epidemiologic studies where HRQoL and utility data are required from elderly populations.

Standardizing Assessment of Elderly People in Acute Care: The interRAI Acute Care Instrument

OBJECTIVES: To examine the frequency distributions and interrater reliability of individual items of the interRAI Acute Care instrument.

Review of Accelerometry for Determining Daily Activity Among Elderly Patients

OBJECTIVES To review studies that used accelerometers to classify human movements and to appraise their potential to determine the activities of older patients in hospital settings. DATA SOURCES MEDLINE, CINAHL, and Web of Science electronic databases. A search constraint of articles published in English language between January 1980 and March 2010 was applied. STUDY SELECTION All studies that validated the use of accelerometers to classify human postural movements and mobility were included. Studies included participants from any age group. All types of accelerometers were included. Outcome measures criteria explored within the studies were comparisons of derived classifications of postural movements and mobility against those made by using observations. Based on these criteria, 54 studies were selected for detailed review from 526 initially identified studies. DATA EXTRACTION Data were extracted by the first author and included characteristics of study participants, accelerometers used, body positions of device attachment, study setting, duration, methods, results, and limitations of the validation studies. DATA SYNTHESIS The accelerometer-based monitoring technique was investigated predominantly on a small sample of healthy adult participants in a laboratory setting. Most studies applied multiple accelerometers on the sternum, wrists, thighs, and shanks of participants. Most studies collected validation data while participants performed a predefined standardized activity protocol. CONCLUSIONS Accelerometer devices have the potential to monitor human movements continuously to determine postural movements and mobility for the assessment of functional ability. Future studies should focus on long-term monitoring of free daily activity of a large sample of mobility-impaired or older hospitalized patients, who are at risk for functional decline. Use of a single waist-mounted triaxial accelerometer would be the most practical and useful option.

Clinical practice guidelines for the management of delirium in older people in Australia

Delirium is a common and serious condition which is often overlooked or misdiagnosed in older people. In 2006, the first set of national clinical practice guidelines for the management of delirium in older people were developed. This paper provides an abbreviated version of the guideline document which includes recommendations for the detection of delirium (diagnosis and screening), assessment and prediction of risk factors for delirium, prevention of delirium and interventions to manage people with delirium. The guidelines reflect the available evidence base and highlight the limited high level research in delirium care, particularly in the areas of symptom management and screening for delirium.

The distribution of health services for older people in Australia: where does transition care fit?

INTRODUCTION The purpose of this study was to describe the distribution of hospital and aged care services for older people, with a particular focus on transition care places, across Australia and to determine the relationships between the provision of these services. METHODS Aggregation of health and aged care service indicators by Aged Care Assessment Team (ACAT) region including: public and private acute and subacute (rehabilitation and geriatric evaluation and management) hospital beds, flexible and mainstream aged care places as at 30 June 2006. RESULTS There was marked variation in the distribution of acute and subacute hospital beds among the 79 ACAT regions. Aged care places were more evenly distributed. However, the distribution of transition care places was uneven. Rural areas had poorer provision of all beds. There was no evidence of coordination in the allocation of hospital and aged care services between the Commonwealth and state/territory governments. There was a weak relationship between the allocation of transition care places and the distribution of health and aged care services. DISCUSSION Overall, the distribution of services available to older persons is uneven across Australia. While the Transition Care Program is flexible and is providing rural communities with access to rehabilitation, it will not be adequate to address the increasing needs associated with the ageing of the Australian population. An integrated national plan for aged care and rehabilitation services should be considered.

Comprehensive geriatric assessment ‘online’

This paper describes a system designed to enable comprehensive geriatric assessment to be performed at distant locations. A structured assessment incorporating the interRAI Acute Care assessment tool is administered by a specifically trained nurse assessor onsite. Data are entered and processed by web‐based software that incorporates a clinical decision support system. It enables a geriatrician to review and report the assessment online. The assessment and report can be viewed by authorised clinicians inside and outside the hospital via the Internet. The system can also be used to support in person geriatric consultation and whole of episode ward‐based geriatric care. Preliminary evaluation suggests the system to be reliable, safe, efficient and appealing to clinicians.

Not just about costs: the role of health economics in facilitating decision making in aged care

This commentary discusses how health economic techniques can usefully be applied to inform clinical and policy decision making in the aged care sector from two perspectives: firstly, in relation to the measurement and valuation of the costs and benefits of new and existing health care technologies and modes of aged care service delivery and secondly, in relation to the facilitation of autonomy and patient choice.

Uptake of telehealth services funded by Medicare in Australia

OBJECTIVE The aim of this study is to identify the extent to which the Medicare item numbers and incentives, introduced in July 2011, have been effective in stimulating telehealth activity in Australia. METHODS A retrospective descriptive study utilising data on the uptake of telehealth item numbers and associated in-person services, from July 2011 to April 2014, were obtained from Medicare Australia. The main outcome measures were number of telehealth services over time, plus uptake proportionate to in-person services, by jurisdiction, by speciality, and by patient gender. RESULTS Specialist consultations delivered by video communication and rebated by Medicare rose to 6000 per month, which is 0.24% of the total number of specialist consultations. The highest proportional uptake was in geriatrics and psychiatry. In 52% per cent of video consultations the patient was supported by an on-site healthcare provider, most commonly a general practitioner. There were substantial jurisdictional differences. A significantly lower percentage of female patients were rebated for item 99, which is primarily used by surgeons. CONCLUSIONS Medicare rebates and incentives, which are generous by world standards, have resulted in specialist video consultations being provided to underserved areas, although gaps still remain that need new models of care to be developed. WHAT IS KNOWN ABOUT THE TOPIC?: Video consultations have been rebated by Medicare since July 2011 as a means of increasing access to specialist care in rural areas, aged care facilities and Aboriginal health services. WHAT DOES THIS PAPER ADD?: The uptake of this telehealth initiative has grown over time, but still remains low. For half the video consultations the patient was supported by an on-site healthcare provider, most commonly a general practitioner. Geriatrics and psychiatry are the specialties with the highest proportional uptake. WHAT ARE THE IMPLICATIONS FOR PRACTITIONERS?: New models of care with a greater focus on consultation-liaison with primary care providers need to be developed to realise the potential of this initiative and to fill continuing gaps in services.

Can post‐acute care programmes for older people reduce overall costs in the health system? A case study using the Australian Transition Care Programme

There is an increasing demand for acute care services due in part to rising proportions of older people and increasing rates of chronic diseases. To reduce pressure and costs in the hospital system, community-based post-acute care discharge services for older people have evolved as one method of reducing length of stay in hospital and preventing readmissions. However, it is unclear whether they reduce overall episode cost or expenditure in the health system at a more general level. In this paper, we review the current evidence on the likely costs and benefits of these services and consider whether they are potentially cost-effective from a health services perspective, using the Australian Transition Care Programme as a case study. Evaluations of community-based post-acute services have demonstrated that they reduce length of stay, prevent some re-hospitalisations and defer nursing home placement. There is also evidence that they convey some additional health benefits to older people. An economic model was developed to identify the maximum potential benefits and the likely cost savings from reduced use of health services from earlier discharge from hospital, accelerated recovery, reduced likelihood of readmission to hospital and delayed entry into permanent institutional care for participants of the Transition Care Programme. Assuming the best case scenario, the Transition Care Programme is still unlikely to be cost saving to a healthcare system. Hence for this service to be justified, additional health benefits such as quality of life improvements need to be taken into account. If it can be demonstrated that this service also conveys additional quality of life improvements, community-based programmes such as Transition Care could be considered to be cost-effective when compared with other healthcare programmes.

Validation of the interRAI Cognitive Performance Scale against independent clinical diagnosis and the Mini-Mental State Examination in older hospitalized patients

ObjectiveTo compare the diagnostic accuracy of the interRAI Acute Care (AC) Cognitive Performance Scale (CPS2) and the Mini-Mental State Examination (MMSE), against independent clinical diagnosis for detecting dementia in older hospitalized patients.Design, Setting, and ParticipantsThe study was part of a prospective observational cohort study of patients aged ≥70 years admitted to four acute hospitals in Queensland, Australia, between 2008 and 2010. Recruitment was consecutive and patients expected to remain in hospital for ≥48 hours were eligible to participate. Data for 462 patients were available for this study.MeasurementsTrained research nurses completed comprehensive geriatric assessments and administered the interRAI AC and MMSE to patients. Two physicians independently reviewed patients’ medical records and assessments to establish the diagnosis of dementia. Indicators of diagnostic accuracy included sensitivity, specificity, predictive values, likelihood ratios and areas under receiver (AUC) operating characteristic curves.Results85 patients (18.4%) were considered to have dementia according to independent clinical diagnosis. The sensitivity of the CPS2 [0.68 (95%CI: 0.58–0.77)] was not statistically different to the MMSE [0.75 (0.64–0.83)] in predicting physician diagnosed dementia. The AUCs for the 2 instruments were also not statistically different: CPS2 AUC = 0.83 (95%CI: 0.78–0.89) and MMSE AUC = 0.87 (95%CI: 0.83–0.91), while the CPS2 demonstrated higher specificity [0.92 95%CI: 0.89–0.95)] than the MMSE [0.82 (0.77–0.85)]. Agreement between the CPS2 and clinical diagnosis was substantial (87.4%; κ=0.61).ConclusionThe CPS2 appears to be a reliable screening tool for assessing cognitive impairment in acutely unwell older hospitalized patients. These findings add to the growing body of evidence supporting the utility of the interRAI AC, within which the CPS2 is embedded. The interRAI AC offers the advantage of being able to accurately screen for both dementia and delirium without the need to use additional assessments, thus increasing assessment efficiency.