[Neuropsychiatric inventory questionnaire (NPI-Q): Spanish validation of an abridged form of the Neuropsychiatric Inventory (NPI)].
BACKGROUND
The Neuropsychiatric Inventory (NPI) is a validated clinical instrument for the evaluation of psychopathology in dementia.


OBJECTIVE
To validate a brief questionnaire form of the NPI (NPI-Q) in Spanish from NPI-Q original version, intended for use in routine clinical practice.


METHODS
We have developed a crossed validated form between NPI and NPI-Q in 120 Alzheimer's disease patients.


RESULTS
Test-retest reliability of the NPI-Q, using Pearson correlation index was r = 0.89 for total symptom scale and r = 0.90 for distress scale. The prevalence of analogous symptom ratings differed by less than 6.7%. Convergent validity between NPI-Q and NPI, using Pearson correlation index was r = 0.879 for total symptom and r = 0.92 for distress scale.


CONCLUSIONS
The NPI-Q Spanish version offers the possibility to use a reliable and brief instrument that can be used as a screening in the evaluation of neuropsychiatric symptoms in dementia and associated caregiver distress. It may be suitable for use in general clinical practice and it could be used as a brief neuropsychiatric interview.
Boada
M
M
Fundació ACE, Institut Català de Neurociències Aplicades, Barcelona, Spain.
Cejudo
J C
JC
Tàrraga
L
L
López
O L
OL
Kaufer
D
D
D000368:Aged; D000369:Aged, 80 and over; D000544:Alzheimer Disease / Q000175:diagnosis* / Q000503:physiopathology; D006801:Humans; D008875:Middle Aged; D009483:Neuropsychological Tests; D015203:Reproducibility of Results; D013030:Spain; D013223:Statistics as Topic; D011795:Surveys and Questionnaires