دورية أكاديمية
Using item response theory to estimate interpretation threshold values for the Frailty Index in community dwelling older adults.
| العنوان: | Using item response theory to estimate interpretation threshold values for the Frailty Index in community dwelling older adults. |
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| المؤلفون: | Pua YH; Department of Physiotherapy, Singapore General Hospital, Singapore; Medicine Academic Programme, Duke-NUS Graduate Medical School, Singapore. Electronic address: pua.yong.hao@sgh.com.sg., Terluin B; Amsterdam Public Health research institute, Amsterdam, the Netherlands; Amsterdam UMC location Vrije Universiteit Amsterdam, Department of General Practice, Amsterdam, the Netherlands., Tay L; Department of General Medicine (Geriatric Medicine), Sengkang General Hospital, Singapore., Clark RA; School of Health and Behavioural Science, University of the Sunshine Coast, Sunshine Coast, Australia., Thumboo J; Medicine Academic Programme, Duke-NUS Graduate Medical School, Singapore; Department of Rheumatology and Immunology, Singapore General Hospital, Singapore; Health Services Research & Evaluation, SingHealth Office of Regional Health, Singapore., Tay EL; Department of Physiotherapy, Sengkang General Hospital, Singapore., Mah SM; Department of Physiotherapy, Sengkang General Hospital, Singapore., Ng YS; Geriatric Education and Research Institute, Singapore; Duke-NUS Medical School, Singapore; Department of Rehabilitation Medicine, Singapore General Hospital and Sengkang General Hospital, Singapore. |
| المصدر: | Archives of gerontology and geriatrics [Arch Gerontol Geriatr] 2024 Feb; Vol. 117, pp. 105280. Date of Electronic Publication: 2023 Nov 21. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Biomedical Press Country of Publication: Netherlands NLM ID: 8214379 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1872-6976 (Electronic) Linking ISSN: 01674943 NLM ISO Abbreviation: Arch Gerontol Geriatr Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Amsterdam : Elsevier Biomedical Press, c1982- |
| مواضيع طبية MeSH: | Frailty*/diagnosis, Humans ; Aged ; Independent Living ; Frail Elderly ; Cross-Sectional Studies ; ROC Curve ; Geriatric Assessment/methods |
| مستخلص: | Background: Although the frailty index (FI) is designed as a continuous measure of frailty, thresholds are often needed to guide its interpretation. This study aimed to introduce and demonstrate the utility of an item response theory (IRT) method in estimating FI interpretation thresholds in community-dwelling adults and to compare them with cutoffs estimated using the receiver operating characteristics (ROC) method. Methods: A sample of 1,149 community-dwelling adults (mean[SD], 68[7] years) participated in this cross-sectional study. Participants completed a multi-domain geriatric screen from which the 40-item FI and 3 clinical anchors were computed - namely, (i)self-reported mobility limitations (SRML), (ii)"fair" or "poor" self-rated health (SRH), and (iii) restricted life-space mobility (RLSM). Participants were classified as having SRML-1 if they responded "Yes" to either of the 2 questions regarding walking and stair climbing difficulty and SRML-2 if they reported having walking and stair climbing difficulty. Participants with a Life Space Assessment score <60 points were classified as having RLSM. Threshold values for all anchor questions were estimated using the IRT method and ROC analysis with Youden criterion. Results: The proportions of participants with SRML-1, SRML-2, Fair/Poor SRH, and RLSM were 21 %, 8 %, 22 %, and 9 %, respectively. The IRT-based thresholds for SRML-2 (0.26), fair/poor SRH (0.29), and RLSM (0.32) were significantly higher than those for SRML-1 (0.18). ROC-based FI cutoffs were significantly lower than IRT-based values for SRML-2, SRH, and RLSM (0.12 to 0.17), and they varied minimally and non-systematically across the anchors. Conclusions: The IRT method identifies biologically plausible FI thresholds that could meaningfully complement and contextualize existing thresholds for defining frailty. Competing Interests: Declaration of Competing Interest The authors report no conflicts of interest. (Copyright © 2023 Elsevier B.V. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Frailty; Item response theory; Receiver operating characteristic analysis |
| تواريخ الأحداث: | Date Created: 20231124 Date Completed: 20231206 Latest Revision: 20240124 |
| رمز التحديث: | 20240125 |
| DOI: | 10.1016/j.archger.2023.105280 |
| PMID: | 38000095 |
| قاعدة البيانات: | MEDLINE |
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Full Text Finder | تدمد: | 1872-6976 |
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| DOI: | 10.1016/j.archger.2023.105280 |