4.2 Article

Utility of the INECO Frontal Screening and the Frontal Assessment Battery in detecting executive dysfunction in early-onset cognitive impairment and dementia

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CAMBRIDGE UNIV PRESS
DOI: 10.1017/S1355617723000619

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neurodegenerative diseases; mild cognitive impairment; executive functions; neuropsychology; neuropsychological assessment; cognitive screening

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This study examined the suitability of two screening tools (IFS and FAB) in assessing early-onset dementia and cognitive impairment patients. The results suggest that the IFS may be more reliable than the FAB in detecting executive dysfunction.
Objective: The INECO Frontal Screening (IFS) and the Frontal Assessment Battery (FAB) are executive dysfunction (ED) screening tools that can distinguish patients with neurodegenerative disorders from healthy controls and, to some extent, between dementia subtypes. This paper aims to examine the suitability of these tests in assessing early-onset cognitive impairment and dementia patients.Method: In a memory clinic patient cohort (age mean = 57.4 years) with symptom onset at <= 65 years, we analyzed the IFS and the FAB results of four groups: early-onset dementia (EOD, n = 49), mild cognitive impairment due to neurological causes (MCI-n, n = 34), MCI due to other causes such as depression (MCI-o, n = 99) and subjective cognitive decline (SCD, n = 14). Data were gathered at baseline and at 6 and 12 months. We also studied the tests' accuracy in distinguishing EOD from SCD patients and ED patients from those with intact executive functioning. Correlations with neuropsychological measures were also studied.Results: The EOD group had significantly (p < .05) lower IFS and FAB total scores than the MCI-o and SCD groups. Compared with the FAB, the IFS showed more statistically significant (p < .05) differences between diagnostic groups, greater accuracy (IFS AUC = .80, FAB AUC = .75, p = .036) in detecting ED and marginally stronger correlations with neuropsychological measures. We found no statistically significant differences in the EOD group scores from baseline up to 6- or 12-months follow-up.Conclusions: While both tests can detect EOD among memory clinic patients, the IFS may be more reliable in detecting ED than the FAB.

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