Diagnostic accuracy of Instrumental Activities of Daily Living for dementia in community-dwelling older adults

Mao, Hui-Fen; Chang, Ling-Hui; Tsai, Athena Yi-Jung; Huang, Wen-Ni Wennie; Tang, Li; Lee, Huey Jane; Sun, Yu; Chen, Ta Fu; Lin, Ker Neng; Wang, Pei Ning; Shyu, Yea‐Ing Lotus; Chiu, Ming‐Jang

doi:10.1093/ageing/afy021

Cited by 38 publications

(45 citation statements)

References 25 publications

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“…Our findings are comparable to other recent research on the original Lawton's IADL Scale, which reported that the scale discriminated extremely well between dementia and non‐dementia groups . However, our research identified a stronger correlation between the MMSE and the Modified Lawton's Scale at 0.73 compared to 0.37 in the previous research . Similar to other research, no significant differences were found between men and women, suggesting that the Modified Lawton's Scale can be used for both sexes.…”

Section: Discussionsupporting

confidence: 87%

“…However, our research identified a stronger correlation between the MMSE and the Modified Lawton's Scale at 0.73 compared to 0.37 in the previous research . Similar to other research, no significant differences were found between men and women, suggesting that the Modified Lawton's Scale can be used for both sexes.…”

Section: Discussionsupporting

confidence: 76%

“…In contrast, two other studies involving the Lawton's IADL Scale showed patients with MCI had increased deficits in tasks including shopping, taking medications and managing finances when compared to patients with NC . Another recent study reported that the Lawton's IADL Scale had discriminant power comparable to the Mini‐Mental State Examination (MMSE) and the Ascertain Dementia 8‐item Informant Questionnaire (AD8) and was recommended for use in screening community‐dwelling residents for dementia …”

Section: Introductionmentioning

confidence: 99%

“…There is however limited research available on these revisions. The Modified Lawton's Scale is a popular IADL scale; however, it was not developed to screen people for cognitive impairment . To be useful in a Memory Clinic setting, cut‐offs for cognitive impairment need to be examined and established in patients without significant physical or sensory deficits .…”

Section: Introductionmentioning

confidence: 99%

“…The Modified Lawton's Scale is a popular IADL scale; however, it was not developed to screen people for cognitive impairment . To be useful in a Memory Clinic setting, cut‐offs for cognitive impairment need to be examined and established in patients without significant physical or sensory deficits . The objective of this research was to: (a) explore the ability of the Modified Lawton's Scale to differentiate between cognitive diagnoses by determining cut‐off scores for patients with NC, MCI and dementia; and (b) to measure the correlation between the Australian Modified Lawton's IADL Scale and the MMSE.…”

Section: Introductionmentioning

confidence: 99%

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Australian modified Lawton's Instrumental Activities of Daily Living Scale contributes to diagnosing older adults with cognitive impairment

et al. 2019

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Objective To assess the ability of the Australian Modified Lawton's Instrumental Activities of Daily Living (IADL) Scale (Modified Lawton's Scale) to screen for cognitive impairment in patients without physical or sensory deficits. Methods Prospective single‐blind study of diagnostic accuracy. Results Data were available for 249 patients. At ≤25 points on the Modified Lawton's Scale, the area under the receiver operating characteristic curve (AUC) for patients with dementia was 0.90 (95% CI 0.83, 0.96), with sensitivity of 95% and specificity of 84%. The scale had decreased ability to identify patients with mild cognitive impairment (MCI) with the AUC highest at 0.76 (95% CI 0.67, 0.84), with a sensitivity of 77% and specificity of 74% at ≤26 points. The Modified Lawton's Scale had a significant strong correlation with the Mini‐Mental State Examination (0.73) (P ≤ 0.001). Conclusion A score of ≤25 on the Modified Lawton's Scale may indicate cognitive impairment impacting on IADL.

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Section: Discussionsupporting

confidence: 87%

Section: Discussionsupporting

confidence: 76%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Australian modified Lawton's Instrumental Activities of Daily Living Scale contributes to diagnosing older adults with cognitive impairment

et al. 2019

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Screening for Cognitive Impairment in Older Adults

Patnode

Perdue

Rossom

et al. 2020

JAMA

195

120

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Informant‐based tools for assessment and monitoring of cognition, behavior, and function in neurocognitive disorders: Systematic review and report from a CCCDTD5 Working Group

Choudhury

Ghodasara

Stiffel

et al. 2022

Int J Geriat Psychiatry

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Objective As part of the fifth Canadian Consensus Conference on the Diagnosis and Treatment of Dementia, we assessed the literature on informant‐based tools for assessment and monitoring of cognition, behavior, and function in neurocognitive disorders (NCDs) to provide evidence‐based recommendations for clinicians and researchers. Methods A systematic review was conducted following Preferred Reporting Items for Systematic Reviews and Meta‐Analyses standards guidelines. Publications that validated the informant‐based tools or described their key properties were reviewed. Quality of the studies was assessed using the modified Quality Assessment tool for Diagnostic Accuracy Studies. Results Out of 386 publications identified through systematic search, 34 that described 19 informant‐based tools were included in the final review. Most of these tools are backed by good‐quality studies and are appropriate to use in clinical care or research. The tools vary in their psychometric properties, domains covered, comprehensiveness, completion time, and ability to detect longitudinal change. Based on these properties, we identify different tools that may be appropriate for primary care, specialized memory clinic, or research settings. We also identify barriers to use of these tools in routine clinical practice. Conclusion There are several good‐quality tools available to collect informant‐report for assessment and monitoring of cognition, behavior, or function in patients with NCDs. Clinicians and researchers may choose a particular tool based on their specific needs such as domains of interest, desired psychometric properties, and feasibility. Further work is needed to make the tools more user‐friendly and to adopt them into routine clinical care.

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Diagnostic accuracy of Instrumental Activities of Daily Living for dementia in community-dwelling older adults

Abstract: our findings support using IADL scale to screen older community-dwelling residents for dementia: it has discriminant power comparable to that of the AD8 and MMSE. Combining the IADL and the AD8 improves specificity.

Cited by 38 publications

References 25 publications

Australian modified Lawton's Instrumental Activities of Daily Living Scale contributes to diagnosing older adults with cognitive impairment

Australian modified Lawton's Instrumental Activities of Daily Living Scale contributes to diagnosing older adults with cognitive impairment

Screening for Cognitive Impairment in Older Adults

Informant‐based tools for assessment and monitoring of cognition, behavior, and function in neurocognitive disorders: Systematic review and report from a CCCDTD5 Working Group

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