On the comparability of frailty scores under the accumulation of deficits approach

Background While the cumulative deficit model is arguably the most popular instrument for population-level frailty screening, several questions remain unanswered regarding the comparability of the resulting scores across subpopulations. Methods Based on data from the five waves of the Mexican Health...

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Bibliographic Details
Published in:PloS one 2023-09, Vol.18 (9), p.e0292129-e0292129
Main Authors: Huffman, Curtis, Nájera, Héctor, Pérez Zepeda, Mario Ulises
Format: Article
Language:English
Subjects:
Accumulation
Age groups
Biology and Life Sciences
Care and treatment
Diagnosis
Engineering and Technology
Evaluation
Exercise
Frail elderly
Frailty
Geriatrics
Invariance
Longitudinal studies
Medical screening
Medicine and Health Sciences
Mortality
People and Places
Research and Analysis Methods
Subpopulations
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Summary:Background While the cumulative deficit model is arguably the most popular instrument for population-level frailty screening, several questions remain unanswered regarding the comparability of the resulting scores across subpopulations. Methods Based on data from the five waves of the Mexican Health and Aging Study (MHAS) we draw upon the alignment method to test for measurement invariance of frailty scores as per the accumulation of deficits approach. Results Our results show that adjusting for measurement non-invariance not only improves predictive validity of our frailty measures, but resulting scores are more consistent with what is theoretically expected from them in longitudinal research. Conclusions There are clear potential benefits of measurement invariance testing as a general analytical framework from which to tackle with issues of comparability in frailty research.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0292129