Subjective Memory Impairment. A review of its definitions indicates the need for a comprehensive set of standardised and validated criteria

Abdulrab, Khaled; Heun, Reinhard

doi:10.1016/j.eurpsy.2008.02.004

Cited by 254 publications

(240 citation statements)

References 67 publications

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“…In this context, a growing interest has emerged in "subjective cognitive complaints" (SCC), defined as self-or informant-reported cognitive disturbances occurring in the absence of an objective impairment of cognitive performance (35). Despite some conflicting results, SCC have been suggested as a potential risk factor for the eventual onset of cognitive impairment and dementia.…”

Section: Theoretical and Operational Definitions Of Frailtymentioning

confidence: 99%

Cognitive frailty: Rational and definition from an (I.A.N.A./I.A.G.G.) International Consensus Group

Kelaiditi

Cesari

Canevelli

et al. 2013

The Journal of nutrition, health and aging

742

550

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Abstract:The frailty syndrome has recently attracted attention of the scientific community and public health organizations as precursor and contributor of age-related conditions (particularly disability) in older persons. In parallel, dementia and cognitive disorders also represent major healthcare and social priorities. Although physical frailty and cognitive impairment have shown to be related in epidemiological studies, their pathophysiological mechanisms have been usually studied separately. An International Consensus Group on "Cognitive Specific aim of this approach was to facilitate the design of future personalized preventive interventions in older persons. Finally, the Group discussed the use of multidomain interventions focused on the physical, nutritional, cognitive and psychological domains for improving the well-being and quality of life in the elderly. The consensus panel proposed the identification of the so-called "cognitive frailty" as an heterogeneous clinical manifestation characterized by the simultaneous presence of both physical frailty and cognitive impairment. In particular, the key factors defining such a condition include: 1) presence of physical frailty and cognitive impairment (CDR=0.5); and 2) exclusion of concurrent AD dementia or other dementias. Under different circumstances, cognitive frailty may represent a precursor of neurodegenerative processes. A potential for reversibility may also characterize this entity. A psychological component of the condition is evident and concurs at increasing the vulnerability of the individual to stressors.

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Section: Theoretical and Operational Definitions Of Frailtymentioning

confidence: 99%

Cognitive frailty: Rational and definition from an (I.A.N.A./I.A.G.G.) International Consensus Group

Kelaiditi

Cesari

Canevelli

et al. 2013

The Journal of nutrition, health and aging

742

550

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“…The diagnosis of SMC should therefore be standardised based on criteria that include age and nature of onset, course, duration and frequency. 31 This may result in better correlation between subjective and objective measures of disease and improve the validity and predictive value of SMCs for dementia.…”

Section: African Journal Of Psychiatry • November 2013mentioning

confidence: 99%

“…28 Despite existing diagnostic criteria for MCI 27,29 , the lack of appropriate and sensitive neuropsychological and functional measures 30 poses challenges to its consistent application and interpretation. Challenges in assigning this diagnosis include the fact that subjective memory deficits lack clear definition 31 , and the interpretation of what constitutes 'minimal' impairment in IADL in the context of MCI. This is important as it has been shown that impairment in IADL impacts significantly on the prognostic value of MCI with respect to progression to dementia.…”

Section: Prevalence Of Dementia and MCImentioning

confidence: 99%

Mild cognitive impairment and dementia in a heterogeneous elderly population: prevalence and risk profile

et al. 2013

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Objective: To describe the demographic, clinical and risk profile of Mild Cognitive Impairment and dementia in a sample of elderly South Africans within a residential setting. Method: One hundred and forty participants residing in a group of residential homes for the elderly were assessed by psychiatrists and assigned diagnoses of dementia or Mild Cognitive Impairment (MCI). Participants diagnosed with dementia were also offered haematological investigations and a CT scan of the brain. Results: The sample consisted of 140 participants comprising 46.4% White, 29.3% Coloured, 20% Asian and 4.3% Black participants. There were 97 (69.3%) females and 106 (75.7%) participants had less than 12 years of education. Eleven (7.9%) dementia and 38 (27.1%) MCI cases were diagnosed. Increasing age was associated with cognitive impairment (MCI and dementia) (p=.020) but there was no association between gender and cognitive impairment (p=.165). MCI was significantly associated with a lower education level (p=.036) and no association was found between depression (current-p=.646; past-p=.719) and dementia or MCI. The presence of vascular risk factors (n=140) ranged from 66.4% (hypertension) to 14.3% (stroke). Subjective memory complaints were significantly associated with cognitive impairment (p=.001). Except for the use of the telephone (p=.225) and the television (p=.08), impairment in all domains of instrumental activities of daily living that were assessed were significantly associated with a dementia diagnosis. Conclusion: The study showed that cognitive impairment was associated with increasing age and low education levels. The presence of vascular risk factors places this population at risk for future cognitive decline. ?? differences in the risk profile (low levels of cardiovascular risk and hypolipidaemia) in LAMIC populations may be contributing to the lower rates. 1 While the incidence and prevalence of dementia have been extensively studied in Western and European countries 5 there remains a dearth of similar studies from Africa. The few studies conducted in Africa prior to 2000 used small samples and was reported to have used 'non-standardised clinical assessments'. 10 Recent studies from Africa reported prevalence figures ranging from 2.6% to 8.1%. 11,12,13 Dementia studies from South Africa include a Western Cape sample of coloured people 14 , with a prevalence of 8.6%, and a Free State sample of indigenous Sotho-speaking elderly black people 15 , which reported a prevalence of 7.7%. This paper describes the clinical and risk profile of a sample of elderly participants who were assessed for the presence of dementia and MCI. In addition, the value of functional assessments and subjective memory complaints in case-finding are also explored. Keywords MethodThe study consisted of three stages: 1) Administration of dementia screening tools; 2) Clinical diagnostic evaluation for dementia; and 3) Administration of a neuropsychological battery of tests. SampleThe study population comprised residents (N=1450) of a ...

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“…An important consideration in the current evidence regarding SCI and affective symptoms is the lack of consistency in SCI assessment, making it difficult to compare findings across studies (Abdulrab & Heun, 2008;Jessen et al, 2014). SCI measures in this review ranged from single-item yes/no responses, to investigator-developed instruments, to established batteries of self-reported cognitive complaints.…”

Section: Sci Measurementmentioning

confidence: 99%

“…Several related constructs have been used to operationalize SCI, including subjective memory complaints, perceived forgetfulness, or cognitive concerns (Abdulrab & Heun, 2008;Jessen et al, 2014). SCI is common among older adults, with prevalence rates ranging from 15% to 50% across studies (Minett, Da Silva, Ortiz, & Bertolucci, 2008;Reid & Maclullich, 2006); however, it is also decidedly heterogeneous in its clinical presentation as well as long-term cognitive outcomes (Donovan et al, 2014).…”

mentioning

confidence: 99%

Subjective Cognitive Impairment and Affective Symptoms: A systematic review

2016

The Gerontologist

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Purpose of Study: Subjective cognitive impairment (SCI) has been argued to reflect affective symptoms (i.e., depression and anxiety) rather than actual cognitive issues. Although a number of studies exist that look at the associations between SCI and affective symptoms, no review is available to aggregate this disparate literature. We addressed this gap by conducting a systematic review to better understand the relationships among SCI and affective symptoms among older adults in both community and clinical settings. Design and Methods: We reviewed available literature per the criteria of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). Weight of evidence (WoE) ratings and narrative synthesis were completed for 58 articles. Results: A majority of studies focused on community-based samples (n = 40). Approximately half (53%) of the articles reviewed met high WoE criteria for the current review. Cross-sectional findings consistently identified a positive relationship among SCI and affective symptoms. Findings from available longitudinal studies (n = 9) were mixed but suggested a possible reciprocal relationship among SCI and depression. The relationship between SCI and anxiety appeared to be driven by fears over loss of function. Following consultation with health professionals, the association between SCI and anxiety was diminished or eliminated. Implications: Although SCI is consistently related to affective symptoms in older adults cross-sectionally, more longitudinal work is needed to understand their temporal relationship. Improved measurement of SCI would support a deeper understanding of the impact of SCI on psychological well-being.

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Subjective Memory Impairment. A review of its definitions indicates the need for a comprehensive set of standardised and validated criteria

Cited by 254 publications

References 67 publications

Cognitive frailty: Rational and definition from an (I.A.N.A./I.A.G.G.) International Consensus Group

Cognitive frailty: Rational and definition from an (I.A.N.A./I.A.G.G.) International Consensus Group

Mild cognitive impairment and dementia in a heterogeneous elderly population: prevalence and risk profile

Subjective Cognitive Impairment and Affective Symptoms: A systematic review

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