Importance of lack of interest in patients with mild cognitive impairment.
OBJECTIVE
Apathy is one of the most common behavioral symptoms in mild cognitive impairment (MCI). The aim of the authors' study was to examine the influence of the apathy dimensions, i.e., emotional blunting, lack of initiative, and lack of interest, on the risk of developing of Alzheimer disease (AD) in patients with MCI.


METHODS
Longitudinal study.


METHODS
Fourteen French memory clinics.


METHODS
Apathy was assessed in 214 MCI patients. The main endpoint considered was the development of AD during the 3-year follow-up.


METHODS
The neuropsychiatric evaluation included the Goldberg anxiety scale and the Montgomery and Asberg Depression Rating Scale; apathy was assessed with the Apathy Inventory.


RESULTS
After 3 years, 59 patients (27.2%) had developed AD. The risk of conversion to AD was significantly higher for patients with lack of interest. Using Cox analyses, controlling for age, gender and education, the difference between survival curves was significant for lack of interest.


CONCLUSIONS
Lack of interest, a mild behavioral sign, could be an indicator of potential decline in MCI patients and underlines the importance of checking the cognitive status of these patients.
Robert
Philippe H
PH
Centre Mémoire de Ressources et de Recherche, CHU de Nice, INSERM JE 2441, Nice, France. phil.robert15@orange.fr
Berr
Claudine
C
Volteau
Magali
M
Bertogliati-Fileau
Christelle
C
Benoit
Michel
M
Guerin
Olivier
O
Sarazin
Marie
M
Legrain
Sylvie
S
Dubois
Bruno
B