Abstract
Background
Sub-clinical cognitive efficiency deficits of a dysexecutive nature are moderately prevalent in healthy older adults and negatively affect their functional outcomes. To screen for such dysfunctions, the Frontal Assessment Battery (FAB) provided promising evidence, although its diagnostic properties have not been tested to date. This study thus aimed at exploring the performance on the FAB of a large sample of Italian healthy adults and comparing it in individuals aged < 75 years vs. ≥ 75 years.
Methods
Four hundred and seventy-five healthy adults (169 males, 306 females, age: 61.1 ± 15.1; education 11.7 ± 4.6) were administered the FAB and the Montreal Cognitive Assessment (MoCA). Sensitivity, specificity, positive and negative predictive values and likelihood ratios were computed through receiver-operating characteristics analyses by addressing an above- vs. below-cutoff performance on the MoCA as the state variable (as including measures of executive functioning).
Results
The FAB overall showed good accuracy (AUC = 0.71–0.76), although higher for healthy older adults. A trend towards higher specificity (64.4–80.3%) than sensitivity (61.1–77.8%) was found, despite these metrics being comparable in healthy older adults. Negative predictive values (0.98–0.99) were systematically higher than positive predictive values (0.05–0.24), whereas consistent post-test probabilities were detected (positive likelihood ratios: 2.19–3.35; negative likelihood ratios: 0.28–0.48).
Discussion
The FAB is an accurate test for the first-level assessment of dysexecutive-related global cognitive inefficiency in the general population, despite being moderately conservative as far as both its pre- and post-test features are concerned. Its diagnostic value is more informative for individuals aged ≥ 75 years.



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Data availability
Data collected and used for the present study are retrievable at https://osf.io/pv6tw/.
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Aiello, E.N., Esposito, A., Appollonio, I. et al. Diagnostic properties of the Frontal Assessment Battery (FAB) in Italian healthy adults. Aging Clin Exp Res 34, 1021–1026 (2022). https://doi.org/10.1007/s40520-021-02035-2
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DOI: https://doi.org/10.1007/s40520-021-02035-2