Katz scale ranks the adequacy of performance in six basic functions including bathing, dressing, toileting, transferring,continence, and feeding.. It has been shown that bathing and dressing are the first ADL to be lost, also defined by Katz et al. as the thresholds for disability (Katz et al., 1970 ; Edjolo et al., 2016). Each item is graded according to the level of dependence as follows: performs independently (0 point), performs with assistance (1 point), and unable to perform (2 point). A total score of 0 indicates "full function" and 12 indicates "severe functional impairment". To evaluate the primary outcome, only the score at the two first items (bathing and dressing, scoring from 0 to 4) will be taken into account for the analysis: complete dependency is present if the score at the two first items is 4 and absent if <4.

Katz scale ranks the adequacy of performance in six basic functions including bathing, dressing, toileting, transferring,continence, and feeding.. It has been shown that bathing and dressing are the first ADL to be lost, also defined by Katz et al. as the thresholds for disability (Katz et al., 1970 ; Edjolo et al., 2016). Each item is graded according to the level of dependence as follows: performs independently (0 point), performs with assistance (1 point), and unable to perform (2 point). A total score of 0 indicates "full function" and 12 indicates "severe functional impairment". To evaluate the primary outcome, only the score at the two first items (bathing and dressing, scoring from 0 to 4) will be taken into account for the analysis: complete dependency is present if the score at the two first items is 4 and absent if <4.

Katz scale ranks the adequacy of performance in six basic functions including bathing, dressing, toileting, transferring,continence, and feeding.. It has been shown that bathing and dressing are the first ADL to be lost, also defined by Katz et al. as the thresholds for disability (Katz et al., 1970 ; Edjolo et al., 2016). Each item is graded according to the level of dependence as follows: performs independently (0 point), performs with assistance (1 point), and unable to perform (2 point). A total score of 0 indicates "full function" and 12 indicates "severe functional impairment". To evaluate the primary outcome, only the score at the two first items (bathing and dressing, scoring from 0 to 4) will be taken into account for the analysis: complete dependency is present if the score at the two first items is 4 and absent if <4.

Katz scale ranks the adequacy of performance in six basic functions including bathing, dressing, toileting, transferring,continence, and feeding.. It has been shown that bathing and dressing are the first ADL to be lost, also defined by Katz et al. as the thresholds for disability (Katz et al., 1970 ; Edjolo et al., 2016). Each item is graded according to the level of dependence as follows: performs independently (0 point), performs with assistance (1 point), and unable to perform (2 point). A total score of 0 indicates "full function" and 12 indicates "severe functional impairment". To evaluate the primary outcome, only the score at the two first items (bathing and dressing, scoring from 0 to 4) will be taken into account for the analysis: complete dependency is present if the score at the two first items is 4 and absent if <4.

The NPI is a caregiver administered scale which assesses 12 domains of BPSD in dementia (Cummings et al., 1994). The NPI has been validated in French (Robert et al., 1998) . It is a questionnaire composed of a screening question and seven to nine items for each of 12 domains : delusions, hallucinations, agitation/aggression, depression/dysphoria, anxiety, elation/euphoria, apathy/indifference, disinhibition, irritability/lability, aberrant motor behavior, sleep, appetite and eating disorders. A knowledgeable informant (usually a caregiver) indicates via the screening question whether the patient has experienced any domain-related symptom in the past month. If the screening question is validated, the caregiver is then asked whether each item within the domain has occurred in the past month and provides a global rating of frequency, severity and caregiver distress for all items in the domain at the same time (not item by item). Score ranges from 0 to 144 .

The NPI is a caregiver administered scale which assesses 12 domains of BPSD in dementia (Cummings et al., 1994). The NPI has been validated in French (Robert et al., 1998) . It is a questionnaire composed of a screening question and seven to nine items for each of 12 domains : delusions, hallucinations, agitation/aggression, depression/dysphoria, anxiety, elation/euphoria, apathy/indifference, disinhibition, irritability/lability, aberrant motor behavior, sleep, appetite and eating disorders. A knowledgeable informant (usually a caregiver) indicates via the screening question whether the patient has experienced any domain-related symptom in the past month. If the screening question is validated, the caregiver is then asked whether each item within the domain has occurred in the past month and provides a global rating of frequency, severity and caregiver distress for all items in the domain at the same time (not item by item). Score ranges from 0 to 144 .

The NPI is a caregiver administered scale which assesses 12 domains of BPSD in dementia (Cummings et al., 1994). The NPI has been validated in French (Robert et al., 1998) . It is a questionnaire composed of a screening question and seven to nine items for each of 12 domains : delusions, hallucinations, agitation/aggression, depression/dysphoria, anxiety, elation/euphoria, apathy/indifference, disinhibition, irritability/lability, aberrant motor behavior, sleep, appetite and eating disorders. A knowledgeable informant (usually a caregiver) indicates via the screening question whether the patient has experienced any domain-related symptom in the past month. If the screening question is validated, the caregiver is then asked whether each item within the domain has occurred in the past month and provides a global rating of frequency, severity and caregiver distress for all items in the domain at the same time (not item by item). Score ranges from 0 to 144 .

the Cornell Scale for Depression in Dementia is a 19-item clinician-administered instrument that uses information from interviews with both the patient and an informant, specifically designed for the rating of symptoms of depression in demented patients (Alexopoulos et al., 1988). Items were constructed so they can be rated primarily on the basis of observation, and not self report by the patient. The severity of each item is described as absent, mild or intermittent, and severe. The informant is interviewed first. Time of administration is about 30 minutes. The CSDD has been validated in French (Camus et al., 1995). Mean scores are given in the original paper, as a function of MMSE for no depression, episodic minor depressive disorder, probable major depressive disorder and definite major depressive disorder.

the Cornell Scale for Depression in Dementia is a 19-item clinician-administered instrument that uses information from interviews with both the patient and an informant, specifically designed for the rating of symptoms of depression in demented patients (Alexopoulos et al., 1988). Items were constructed so they can be rated primarily on the basis of observation, and not self report by the patient. The severity of each item is described as absent, mild or intermittent, and severe. The informant is interviewed first. Time of administration is about 30 minutes. The CSDD has been validated in French (Camus et al., 1995). Mean scores are given in the original paper, as a function of MMSE for no depression, episodic minor depressive disorder, probable major depressive disorder and definite major depressive disorder.

the Cornell Scale for Depression in Dementia is a 19-item clinician-administered instrument that uses information from interviews with both the patient and an informant, specifically designed for the rating of symptoms of depression in demented patients (Alexopoulos et al., 1988). Items were constructed so they can be rated primarily on the basis of observation, and not self report by the patient. The severity of each item is described as absent, mild or intermittent, and severe. The informant is interviewed first. Time of administration is about 30 minutes. The CSDD has been validated in French (Camus et al., 1995). Mean scores are given in the original paper, as a function of MMSE for no depression, episodic minor depressive disorder, probable major depressive disorder and definite major depressive disorder.

the Cornell Scale for Depression in Dementia is a 19-item clinician-administered instrument that uses information from interviews with both the patient and an informant, specifically designed for the rating of symptoms of depression in demented patients (Alexopoulos et al., 1988). Items were constructed so they can be rated primarily on the basis of observation, and not self report by the patient. The severity of each item is described as absent, mild or intermittent, and severe. The informant is interviewed first. Time of administration is about 30 minutes. The CSDD has been validated in French (Camus et al., 1995). Mean scores are given in the original paper, as a function of MMSE for no depression, episodic minor depressive disorder, probable major depressive disorder and definite major depressive disorder.

date of institutionalization

date of death

Neuropsychiatric Inventory with an informant if any (de Medeiros et al., 2010). This scale will be administered by an experienced clinician or psychologist. Both the subscore of each of the 12 domains and the total score will be analysed

Neuropsychiatric Inventory with an informant if any (de Medeiros et al., 2010). This scale will be administered by an experienced clinician or psychologist. Both the subscore of each of the 12 domains and the total score will be analysed

Neuropsychiatric Inventory with an informant if any (de Medeiros et al., 2010). This scale will be administered by an experienced clinician or psychologist. Both the subscore of each of the 12 domains and the total score will be analysed

Neuropsychiatric Inventory with an informant if any (de Medeiros et al., 2010). This scale will be administered by an experienced clinician or psychologist. Both the subscore of each of the 12 domains and the total score will be analysed