Adaptation of the Spanish version of the Frontal Assessment Battery for detection of executive dysfunction.

BACKGROUND: The Frontal Assessment Battery (FAB) evaluates executive dysfunctions; however, there is no culturally adapted version of this instrument for the Spanish population. The aim of this study was the translation and cross-cultural adaptation of the original version of the FAB into Spanish and to pilot test this version. METHODS: The cross-cultural adaptation was conducted following standard procedures. The final Spanish version of the FAB (FAB-E) was pilot tested with 19 healthy Spanish individuals. Total and subtest FAB-E scores were analysed to verify that the test could be understood and that the items assessed what they were intended to assess. RESULTS: The FAB-E revealed that items/instructions were culturally appropriate and written clearly. Pilot testing showed that most of the participants had scores ranging between 2 and 3 points in all the items. The mean of the total FAB-E was 15.8 (SD=1.3) and the values ranged from 13 to 18. Age and educational level seemed to indicate differences in FAB-E scores. CONCLUSION: Our findings support that the FAB-E can be used to screen for executive dysfunctions in a Spanish-speaking population.

Measuring executive dysfunction in Parkinson's disease: Reliability and validity of the Spanish version of Frontal Assessment Battery (FAB-E).

BACKGROUND: Deficits in executive functions (EFs) are frequently detected in patients with Parkinson's disease (PD). The Frontal Assessment Battery (FAB) is a screening test for assessing EFs although it has not been so far adapted and validated in Spain. We evaluated the reliability and validity of the Spanish version of the FAB (FAB-E) in PD patients. MATERIALS AND METHODS: Our study included 54 healthy subjects and 67 PD patients. Cognitive assessment of participants was conducted using the FAB-E, Mini-Mental State Examination (MMSE), Trail Making Test (TMT), Revised-Barcelona Test (RBT) and Executive Interview (EXIT-25). Internal consistency, intra- and test-retest reliabilities, concurrent and discriminant validity of the FAB-E were examined. To evaluate the influence of cognitive dysfunction in PD on the performance of the FAB-E, we also classified the PD patients into groups according to their cognitive status as measured by the MMSE using published criteria to identify cognitive deficits in PD. RESULTS: The FAB-E showed good internal consistency (α = 0.751). The intraclass correlation coefficients (ranging from 0.559 to 0.891) and Spearman correlations (from 0.494 to 0.864) of the FAB-E subtests indicated a good-strong reliability. The total and subtest scores generally showed a good concurrent validity, except for the prehension behaviour item of the FAB-E and the Interference and Go/no-go tasks of the EXIT-25 that presented low estimates. Excluding the prehension behaviour subtest, the performance of the FAB-E was higher in the control group than in PD patients. Cognitive dysfunction in PD patients also indicated significant poorer FAB-E scores excepting the motor and prehension behaviour subtests. Discriminant analysis determined a cut-off of 14.5 was optimal to differentiate healthy subjects from PD patients. Moreover, a cut-off <12.5 allocated satisfactorily those PD patients with cognitive impairment (MMSE<26) and scores <11.5 classified suitably those PD patients with dementia (MMSE<24). CONCLUSION: The FAB-E is an accurate tool for evaluating EFs in patients with PD and can provide useful information for distinguishing PD patients with and without cognitive dysfunction at a bedside assessment.