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Bruderer-Hofstetter M, Gorus E, Cornelis E, Meichtry A, De Vriendt P. Influencing factors on instrumental activities of daily living functioning in people with mild cognitive disorder - a secondary investigation of cross-sectional data. BMC Geriatr 2022; 22:791. [PMID: 36217106 PMCID: PMC9552428 DOI: 10.1186/s12877-022-03476-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 09/23/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Finding a strategy to reduce the impact of cognitive decline on everyday functioning in persons suffering from cognitive impairment is a public health priority. Instrumental activities of daily living (IADL) are key to everyday functioning. Hence, it is essential to understand the influencing factors on IADL to develop specific interventions to improve everyday functioning in persons with mild cognitive disorder. Therefore, this study aimed to 1) explore different influencing factors on IADL functioning considering all domains of the International Classification of Functioning, disability, and health and 2) rank these factors. METHODS We performed a secondary analysis of a cohort including participants with amnestic mild cognitive impairment (a-MCI) or mild Alzheimer's Dementia (mild AD). The IADL functioning model was used as a starting point to estimate the effects of cognitive and physical function factors and personal and environmental factors on IADL functioning using multiple linear regression analysis, including subgroup analysis in persons with a-MCI. We used standardized coefficient estimates to relate the size of the predictor effects in the final model. RESULTS We included 105 participants (64 a-MCI, 41 mild AD); the mean age was 81.9 years (SD 4.9), with 70% females. Based on a multi-step approach and model fit, the final model included IADL functioning as the response variable and memory, attention, executive function, vision and hearing, mobility, balance, education, and social support as predictors. The final model explained 75% of the variability. The significant predictors in the model were mobility, balance, attention, and education, and were the predictors with the most considerable effects based on standardized coefficient estimates. The subgroup analysis, including only a-MCI participants, revealed a similar pattern. CONCLUSION Our results confirm that IADL functioning in people with mild cognitive disorder is influenced by cognitive and physical function and personal factors. The study provides further insight into understanding IADL functioning impairments in persons with mild impaired cognition and may be used to develop specific non-pharmacological interventions.
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Affiliation(s)
- Marina Bruderer-Hofstetter
- School of Health Professions, Institute of Physiotherapy, ZHAW Zurich University of Applied Sciences, Katharina-Sulzer-Platz 9, CH-8400, Winterthur, Switzerland.
| | - Ellen Gorus
- Department Gerontology and Frailty in Ageing (FRIA) Research Group, Vrije Universiteit Brussel (VUB), Brussels, Belgium.,Geriatrics Department, Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - Elise Cornelis
- Department of Occupational Therapy and Research & Development in Health & Care, Artevelde University of Applied Sciences, Ghent, Belgium
| | - André Meichtry
- School of Health Professions, Institute of Physiotherapy, ZHAW Zurich University of Applied Sciences, Katharina-Sulzer-Platz 9, CH-8400, Winterthur, Switzerland
| | - Patricia De Vriendt
- Department Gerontology and Frailty in Ageing (FRIA) Research Group, Mental Health and Wellbeing (MENT) Research Group, Vrije Universiteit Brussel (VUB), Brussels, Belgium.,Department of Occupational Therapy, Artevelde University of Applied Sciences, Ghent, Belgium.,Faculty of Medicine and Health Sciences, Department of Rehabilitation Sciences and Physiotherapy, Occupational Therapy Programme, Ghent University, Ghent, Belgium
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Early diagnosis of mild cognitive impairment and mild dementia through basic and instrumental activities of daily living: Development of a new evaluation tool. PLoS Med 2017; 14:e1002250. [PMID: 28291801 PMCID: PMC5349421 DOI: 10.1371/journal.pmed.1002250] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 02/02/2017] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND Assessment of activities of daily living (ADL) is paramount to determine impairment in everyday functioning and to ensure accurate early diagnosis of neurocognitive disorders. Unfortunately, most common ADL tools are limited in their use in a diagnostic process. This study developed a new evaluation by adopting the items of the Katz Index (basic [b-] ADL) and Lawton Scale (instrumental [i-] ADL), defining them with the terminology of the International Classification of Human Functioning, Disability and Health (ICF), adding the scoring system of the ICF, and adding the possibility to identify underlying causes of limitations in ADL. METHODS AND FINDINGS The construct validity, interrater reliability, and discriminative validity of this new evaluation were determined. From 2015 until 2016, older persons (65-93 y) with normal cognitive ageing (healthy comparison [HC]) (n = 79), mild cognitive impairment (MCI) (n = 73), and Alzheimer disease (AD) (n = 71) underwent a diagnostic procedure for neurocognitive disorders at the geriatric day hospital of the Universitair Ziekenhuis Brussel (Brussels, Belgium). Additionally, the ICF-based evaluation for b- and i-ADL was carried out. A global disability index (DI), a cognitive DI (CDI), and a physical DI (PDI) were calculated. The i-ADL-CDI showed high accuracy and higher discriminative power than the Lawton Scale in differentiating HC and MCI (area under the curve [AUC] = 0.895, 95% CI .840-.950, p = .002), MCI and AD (AUC = 0.805, 95% CI .805-.734, p = .010), and HC and AD (AUC = 0.990, 95% CI .978-1.000, p < .001). The b-ADL-DI showed significantly better discriminative accuracy than the Katz Index in differentiating HC and AD (AUC = 0.828, 95% CI .759-.897, p = .039). This study was conducted in a clinically relevant sample. However, heterogeneity between HC, MCI, and AD and the use of different methods of reporting ADL might limit this study. CONCLUSIONS This evaluation of b- and i-ADL can contribute to the diagnostic differentiation between cognitively healthy ageing and neurocognitive disorders in older age. This evaluation provides more clarity and nuance in assessing everyday functioning by using an ICF-based terminology and scoring system. Also, the possibility to take underlying causes of limitations into account seems to be valuable since it is crucial to determine the extent to which cognitive decline is responsible for functional impairment in diagnosing neurocognitive disorders. Though further prospective validation is still required, the i-ADL-CDI might be useful in clinical practice since it identifies impairment in i-ADL exclusively because of cognitive limitations.
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Discriminative power of the advanced activities of daily living (a-ADL) tool in the diagnosis of mild cognitive impairment in an older population. Int Psychogeriatr 2015; 27:1419-27. [PMID: 25901578 DOI: 10.1017/s1041610215000563] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND Mild cognitive impairment (MCI) is characterized by subjective and objective memory impairments in the absence of manifest functional decline. Mild changes in activities of daily living (ADL) can be present and probably predict conversion to dementia. A new advanced (a)-ADL tool was developed, evaluating high-level activities and, taking each participant as their own reference, distinguishing a global Disability Index (a-ADL-DI), a Cognitive Disability Index (a-ADL-CDI), and a Physical Disability Index (a-ADL-PDI), based on the number of activities performed and the severity and causes of the functional problem. This study evaluates the discriminative validity of the a-ADL in MCI. METHOD Based upon clinical evaluation and a set of global, cognitive, mood, and functional assessments, 150 community-dwelling participants (average age 80.3 years (SD 5; 66-91)) were included and diagnosed as (1) cognitively healthy participants (n = 50); (2) patients with a-MCI (n = 48), or (3) mild to moderate AD (n = 52). The a-ADL tool was not a part of the clinical evaluation. RESULTS The a-ADL-DI and the a-ADL-CDI showed a sensitivity and specificity ranging from 70% to 94.2%, Positive Predictive Value ranging from 70% till 93.8%, and Negative Predictive Value from 64.4% and 93.8%, an area under the curve (AUC) ranging from 0.791 to 0.960. Functional decline related to physical deficits, as assessed by the a-ADL-PDI, did not discriminate between the different groups. CONCLUSION The a-ADL tool has a good ability to distinguish normal and pathological cognitive aging. Its discriminative power for underlying causes of limitations may be an advantage.
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De Vriendt P, Gorus E, Cornelis E, Bautmans I, Petrovic M, Mets T. The advanced activities of daily living: a tool allowing the evaluation of subtle functional decline in mild cognitive impairment. J Nutr Health Aging 2013; 17:64-71. [PMID: 23299382 DOI: 10.1007/s12603-012-0381-9] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVES Assessment of advanced activities of daily living (a-ADL) can be of interest in establishing the diagnosis of Alzheimer's disease (AD) in an earlier stage, since these activities demand high cognitive functioning and are more responsive to subtle changes. In this study we tested a new a-ADL tool, developed according to the International Classification of Functioning, Disability and Health (ICF). The a-ADL tool is based on the total number of activities performed (TNA) by a person and takes each subject as his own reference. It distinguishes a total disability index (a-ADL-DI), a cognitive disability index (a-ADL-CDI), and a physical disability index (a-ADL-PDI), with lower score representing more independency. We explored whether these indices allow distinction between cognitively healthy persons, patients with Mild Cognitive Impairment (MCI) and patients with mild AD. METHODS Participants were on average 80 years old (SD 4.6; 66-90), were community dwelling, and were diagnosed as (1) cognitively healthy subjects (n=26); (2) patients with MCI (n = 17), or (3) mild AD (n = 25), based upon extensive clinical evaluation and a set of global, cognitive, mood and functional assessments. The a-ADL-tool was not part of the clinical evaluation. RESULTS The a-ADL-CDI was significantly different between the three groups (p<.01). The a-ADL-DI was significantly different between MCI and AD (p<.001). The tool had good psychometrical properties (inter-rater reliability; agreement between patient and proxy; correlations with cognitive tests). Although the sample size was relatively small, ROC curves were computed for the a-ADL-DI and a-ADL-CDI with satisfactory and promising results. CONCLUSION The a-ADL-CDI and a-ADL-DI might offer a useful contribution to the identification and follow up of patients with mild cognitive disorders in an older population.
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Affiliation(s)
- P De Vriendt
- Frailty in Ageing (FRIA) reSearch Group,Gerontology Department, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Brussels, Belgium
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De Vriendt P, Gorus E, Bautmans I, Mets T. Conversion of the Mini-Mental State Examination to the International Classification of Functioning, Disability and Health terminology and scoring system. Gerontology 2011; 58:112-9. [PMID: 22067433 DOI: 10.1159/000330088] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2010] [Accepted: 06/16/2011] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND In older patients, evaluation of the cognitive status is crucial. The Mini-Mental State Examination (MMSE) is widely used for screening of cognition, providing fairly high sensitivity, specificity and reproducibility. Recently, a consensus emerged on the necessity of an international and transparent language, as provided by the WHO's International Classification of Functioning, Disability and Health (ICF). Most assessment tools however are not in accordance with the ICF. OBJECTIVE To reformulate the MMSE according to the ICF, both for the individual items and for the scoring system. METHOD MMSE data (scores varying from 3 to 30/30) of (1) 217 cognitively healthy elderly, (2) 60 persons with mild cognitive impairment, (3) 60 patients with mild Alzheimer's disease (AD), and (4) 60 patients with moderate/severe AD were obtained from studies at a university hospital setting. Subjects were aged 65 years or more and recruited either through advertisement (group 1), from the geriatric day hospital (groups 2 and 3), or the geriatric ward (group 4). The allocation to the groups was done after multidisciplinary evaluation. The conversion of the MMSE to ICF-MMSE was done by content comparison and by subsequent translation of the scoring system using automatic algorithms. RESULTS All MMSE items were converted to the corresponding ICF categories. Three ICF domains were addressed: global and specific mental functions, general tasks and demands, divided over 6 ICF categories (orientation time/place, sustaining attention, memory functions, mental functions of language, undertaking a simple task). Scores on individual items were transformed according to their relative weight on the original MMSE scale, and a total ICF-MMSE score from 0 (no problem) to 100 (complete problem) was generated. Translation was satisfying, as illustrated by a good correlation between MMSE and ICF-MMSE. The diagnostic groups were distributed over the ICF-MMSE scores as expected. For each ICF domain, ICF-MMSE subscores were higher with increasing severity in cognitive decline. There was a higher dispersion, in accordance with the more detailed scoring possibilities of the ICF-MMSE. CONCLUSIONS It is possible to adapt the MMSE to the ICF concept. This adaptation enhances interdisciplinary communication since it provides more clarity in assessment, with better visibility of the areas covered by the instrument.
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Affiliation(s)
- P De Vriendt
- Frailty in Ageing Research Department, Vrije Universiteit Brussel, Brussels, Belgium
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Werner P, Goldstein D, Heinik J. The process and organizational characteristics of memory clinics in Israel in 2007. Arch Gerontol Geriatr 2008; 49:e115-e120. [PMID: 19095313 DOI: 10.1016/j.archger.2008.10.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2008] [Revised: 10/24/2008] [Accepted: 10/27/2008] [Indexed: 11/25/2022]
Abstract
We previously described the characteristics and activities of 25 memory clinics in Israel in 1998 using a mail survey. Questionnaires assessing the administrative structure of the clinics, patient characteristics, processes and methods used, and outcomes of the assessment were mailed again in 2007 to 35 memory clinics. Overall, the general operating characteristics of the clinics in 2007 were found to be similar to those reported in the previous survey conducted in 1998. The assessment process in 2007 was shorter than in 1998 (mean time=1.92 and 3.12 h, respectively), although both surveys were based on an interdisciplinary team, including a physician, a nurse and a social worker. However, in 2007 the teams were more wide-ranging. A wider variety of instruments were reported in the more recent survey. Most of the clinics in both surveys reported that family members were involved at all stages of the assessment. Medication treatment was the main outcome reported by the clinics in both surveys. There has been a development in the process and organizational characteristics of memory clinics in Israel over the years, probably as a consequence of the development of knowledge in the area of cognitive deterioration.
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Affiliation(s)
- Perla Werner
- Department of Gerontology, Faculty of Social Welfare and Health Sciences, University of Haifa, Mt. Carmel, Haifa 31905, Israel.
| | - Dovrat Goldstein
- Department of Gerontology, Faculty of Social Welfare and Health Sciences, University of Haifa, Mt. Carmel, Haifa 31905, Israel
| | - Jeremia Heinik
- Margoletz Psychogeriatric Center, Ichilov Hospital, 6 Weizman Street, Tel Aviv 64239, Israel; Sackler School of Medicine, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel
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Gorus E, De Raedt R, Lambert M, Lemper JC, Mets T. Reaction times and performance variability in normal aging, mild cognitive impairment, and Alzheimer's disease. J Geriatr Psychiatry Neurol 2008; 21:204-18. [PMID: 18838743 DOI: 10.1177/0891988708320973] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study evaluated whether reaction times (RT) and performance variability are potential markers for the early detection of Alzheimer's disease (AD). Cognitively healthy elderly (n = 218), persons with amnestic MCI (a-MCI) (n = 29) and patients with AD (n = 50) were examined with RT tasks with increasing complexity, subdividing RT into a decision and a movement component. Persons with cognitive deterioration demonstrated more intra-individual variability and more slowing than cognitively healthy elderly. The slowing in AD affects both the cognitive and the motor component, while performance variability mainly affects the cognitive component of the RT. Although in a-MCI not all differences reached statistical significance, primarily the cognitive component of the RT is affected in a-MCI. Intra-individual variability and RT of the complex tasks are the best predictors for a-MCI and AD status, respectively. We conclude that performance variability can be regarded as a useful preclinical marker for AD.
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Affiliation(s)
- Ellen Gorus
- Gerontology Department, Vrije Universiteit Brussel, Brussels, Belgium
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Hasselbalch SG, Baloyannis S, Denislic M, Dubois B, Oertel W, Rossor M, Tsiskaridze A, Waldemar G. Education and training of European neurologists in dementia. Eur J Neurol 2007; 14:505-9. [PMID: 17437608 DOI: 10.1111/j.1468-1331.2006.01679.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The aim of this study was to describe the present involvement of neurologists in dementia management in European countries. Data were obtained from a questionnaire that members of The European Federation of Neurological Societies Scientific Panel on Dementia responded to. Information was obtained from 25 countries in Europe. A progressive decrease in the teaching activity from medical school to board-certified neurologists was reported. Teaching of medical students in dementia is obligatory in most countries, whereas there is no formal obligatory education in dementia after graduation from medical school. Further, in only half of the countries that responded to the questionnaire, obligatory courses in dementia are part of the training in neurology. Except for one country, the post-graduate training programs of board-certified neurologists do not include dementia as an obligatory topic. In only 10 of 25 countries, guidelines for neurologists on dementia evaluation have been published in local language. It is recommended to include obligatory teaching and training in dementia in the catalogue of minimum requirements for specialist training in neurology and this teaching should also be part of the ongoing update of certified neurologists.
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MESH Headings
- Academic Medical Centers/standards
- Academic Medical Centers/statistics & numerical data
- Academic Medical Centers/trends
- Dementia/diagnosis
- Dementia/therapy
- Education, Medical, Continuing/standards
- Education, Medical, Continuing/statistics & numerical data
- Education, Medical, Continuing/trends
- Education, Medical, Graduate/standards
- Education, Medical, Graduate/statistics & numerical data
- Education, Medical, Graduate/trends
- Europe
- Humans
- Interdisciplinary Communication
- Internship and Residency/standards
- Internship and Residency/statistics & numerical data
- Internship and Residency/trends
- Neurology/education
- Patient Care Team
- Surveys and Questionnaires
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Affiliation(s)
- S G Hasselbalch
- Memory Disorders Research Group 6702, Department of Neurology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark.
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Gorus E, Lambert M, De Raedt R, Mets T. The influence of galantamine on reaction time, attention processes, and performance variability in elderly Alzheimer patients. J Clin Psychopharmacol 2007; 27:182-7. [PMID: 17414243 DOI: 10.1097/jcp.0b013e318032eadb] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To examine the effect of galantamine in elderly patients with mild to moderate Alzheimer disease (AD) on reaction time (RT), selective (SA) and alternating attention (AA), errors, and on interindividual and intraindividual variability. METHODS Forty-one outpatients with AD were included in an open-label prospective trial and evaluated at baseline and after 8 and 22 weeks of treatment using a RT test that allows differentiation between the decision and movement time components of the total RT. The various tasks of the RT test allowed calculation of SA and AA. Standard AD evaluation tests were performed at baseline and after 22 weeks. RESULTS After 8 and 22 weeks of treatment, an improvement of decision time and RT at all complexity levels was noted. For movement time, improvements were less pronounced and not present at both follow-up moments or at all complexity levels. Selective attention, but not AA, improved significantly after 22 weeks. A decrease in the number of errors was noted. At several complexity levels, both at 8 and 22 weeks, the interindividual and intraindividual variability decreased. Changes in Mini Mental State Evaluation score were correlated with those in SA. CONCLUSIONS Our study provides arguments that galantamine treatment improves various parameters of the RT, attention, and interindividual and intraindividual variability in elderly AD patients. Because the study is not a controlled trial, further investigation is needed.
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Affiliation(s)
- Ellen Gorus
- Gerontology, Faculty of Medicine & Pharmacy, Vrije Universiteit Brussel, Belgium
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Werner P, Heinik J, Aharon J. Process and organizational characteristics of memory clinics in Israel: a national survey. Arch Gerontol Geriatr 2005; 33:191-201. [PMID: 15374034 DOI: 10.1016/s0167-4943(01)00183-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2000] [Revised: 06/11/2001] [Accepted: 06/12/2001] [Indexed: 11/19/2022]
Abstract
A survey was conducted to describe the characteristics and activities of memory clinics in Israel. A structured questionnaire was mailed to 25 memory clinics, accompanied by a cover letter and a returning envelope. The questionnaire included items regarding: (a) administrative structure of the clinic (the period and place of operation, number of staff and their professions); (b) patients' characteristics (monthly number of patients, sources of referral and eligibility criteria); (c) assessment methods used (history, cognitive screening instruments, functional status assessment, neuroimaging and laboratory tests); (d) the assessment process (length of assessment, family involvement); and (e) outcomes of the assessment process. Twelve questionnaires were returned, yielding a 52% response rate. Overall, there was agreement regarding the general operating characteristics of the clinics. The majority was based on an interdisciplinary team including a physician, a nurse and a social worker. The mean number of new monthly patients attending the clinics was 24 (range 7-70), and the main source of referral was the Sick Funds. Mostly all clinics used the Mini Mental State Examination as a screening instrument and performed psychological, physical, neurological, and laboratory examinations. Medication treatment was the main outcome reported by the clinics. In a country like Israel, where geriatric psychiatry services are still developing, there is an increasing need to expand the number and type of services provided by memory clinics.
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Affiliation(s)
- P Werner
- Department of Gerontology, Faculty of Social Welfare and Health Studies, University of Haifa, Mt. Carmel, Haifa 31905, Israel.
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