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This database contains 108 studies, archived under the term: "statistics & numerical data"

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Cognitive and psychiatric effects of vitamin B12 replacement in dementia with low serum B12 levels: a nursing home study

Background: The aim of this study is to determine whether B12 replacement would ameliorate cognitive and psychiatric symptoms in elderly subjects with dementia and low serum B12 levels.; Methods: A test group (n = 28) of nursing home residents with low serum B12 levels (300 pg/mL) were evaluated by blinded raters while the test group […]

Methodological improvements in quantifying cognitive change in clinical trials: an example with single-dose administration of donepezil

Objectives: Change in cognitive function in response to a pharmacologic challenge can be observed with greater sensitivity by employing cognitive tests with optimal psychometric properties and a statistical approach that more accurately accounts for individual variability in performance. To demonstrate this approach we examined the cognitive effects of a single acute dose administration of an […]

Effectiveness of a psychoeducational intervention program in the reduction of caregiver burden in Alzheimer’s disease patients’ caregivers

Objectives: Caregivers of patients with Alzheimer’s disease (AD) experience physical and psychological stress due to the caring experience. This study evaluated the benefits of a Psychoeducational Intervention Program (PIP) on caregiver burden in southern Europe.; Methods: A multicentre, prospective, randomised study was conducted. One hundred and fifteen caregivers of patients with clinical diagnosis of AD […]

Training in dementia care: a cluster-randomized controlled trial of a training program for nursing home staff in Germany

Background: This study examines the effectiveness of a nursing home staff training program designed to improve the interaction between residents with dementia and their caregivers.; Methods: A three-arm cluster-randomized and controlled population of 96 caregivers and 210 residents was used. Caregivers of the intervention group (IG) received a three-month training program in dementia care. Data […]

Donepezil treatment of patients with MCI: a 48-week randomized, placebo-controlled trial

Background: Treatment of mild cognitive impairment (MCI) with cholinesterase inhibitors may improve symptoms.; Methods: In this multicenter, randomized, placebo-controlled trial, subjects with MCI entered a 3-week placebo run-in period followed by 48 weeks of double-blind donepezil (5 mg/day for 6 weeks, then 10 mg/day for 42 weeks) or placebo treatment. Primary efficacy variables included change […]

Non-pharmacological management of behavioural symptoms in nursing homes

Background: Behavioural and psychological symptoms of dementia (BPSD) are often reported in institutions for the elderly.; Objective: To evaluate the effectiveness of a staff education intervention to manage BPSD in older people with a diagnosis of dementia.; Methods: The trial was conducted in 16 nursing homes; 306 patients with a diagnosis of dementia and presenting […]

Hospice use and outcomes in nursing home residents with advanced dementia

Objectives: To identify characteristics of nursing home (NH) residents with advanced dementia and their healthcare proxies (HCPs) associated with hospice referral and to examine the association between hospice use and the treatment of pain and dyspnea and unmet needs during the last 7 days of life.; Design: Prospective cohort study.; Setting: Twenty-two Boston-area NHs.; Participants: […]

Lithium trial in Alzheimer’s disease: a randomized, single-blind, placebo-controlled, multicenter 10-week study

Objective: Lithium, a first-line drug for the treatment of bipolar depression, has recently been shown to regulate glycogen synthase kinase-3 (GSK-3), a kinase that is involved in the phosphorylation of the tau protein. Since hyperphosphorylation of tau is a core pathological feature in Alzheimer’s disease, lithium-induced inhibition of GSK-3 activity may have therapeutic effects in […]

Vitamins B(12), B(6), and folic acid for cognition in older men

Objective: To investigate whether supplementing older men with vitamins B(12), B(6), and folic acid improves cognitive function.; Methods: The investigators recruited 299 community-representative hypertensive men 75 years and older to a randomized, double-blind controlled clinical trial of folic acid, vitamin B(6), and B(12) supplementation vs placebo over 2 years. The primary outcome of interest was […]

The value of social attributes of stimuli for promoting engagement in persons with dementia

The present study examined the impact of different attributes of social stimuli using the stimulus attributes aspect of the Comprehensive Process Model of Engagement ( Am J Geriatr Psychiatry. 17:299-307). Participants were 193 residents of 7 Maryland nursing homes with a diagnosis of dementia. Stimuli were chosen to represent different levels of the following social […]

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