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This database contains 244 studies, archived under the term: "Cohort Study"

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A comparison of neurocognitive impairment in younger and older adults with major depression

Background: Neurocognitive impairment is a well-recognized feature of depression that has been reported in younger and older adults. Similar deficits occur with ageing and it is unclear whether the greater deficits in late-life depression are an ageing-related phenomenon or due to a difference in the nature of late-life depression itself. We hypothesized that ageing alone […]

Staff training in assisted living: evaluating treatment fidelity

Objectives: To investigate a protocol for identifying and evaluating treatment fidelity in Staff Training in Assisted-living Residences (STAR), a structured but flexible program to train direct care staff to improve care of residents with dementia.; Design: Multisite feasibility trial.; Setting: Assisted living facilities (ALFs).; Participants: Forty-four direct care staff and 36 leadership staff.; Intervention: STAR […]

Decision-making and outcomes of feeding tube insertion: a five-state study

Objectives: To examine family member’s perceptions of decision-making and outcomes of feeding tubes.; Design: Mortality follow-back survey. Sample weights were used to account for oversampling and survey design. A multivariate model examined the association between feeding tube use and overall quality of care rating regarding the last week of life.; Setting: Nursing homes, hospitals, and […]

Multicenter stability of diffusion tensor imaging measures: a European clinical and physical phantom study

Diffusion tensor imaging (DTI) detects white matter damage in neuro-psychiatric disorders, but data on reliability of DTI measures across more than two scanners are still missing. In this study we assessed multicenter reproducibility of DTI acquisitions based on a physical phantom as well as brain scans across 16 scanners. In addition, we performed DTI scans […]

Differential perceptions of quality of life (QoL) in community-dwelling persons with mild-to-moderate dementia

Background: Discordance between patient- and caregiver-reported quality of life (QoL) is well recognized. This study sought to (i) identify predictors of discrepancy between patient- and caregiver-rated QoL amongst community-dwelling persons with mild-to-moderate dementia, and (ii) differentiate between patients who systematically rate their QoL lower versus those who rate their QoL higher relative to their caregiver […]

Impaired glucose metabolism slows executive function independent of cerebral ischemic lesions in Japanese elderly: the Takahata study

Objective: Age is known to influence the risk of both cerebral ischemic lesions and impaired cognitive function. Diabetes mellitus (DM) can also be associated with cognitive impairment. However, there has been no study of neuropsychological performance in association with glucose metabolism status and cerebral ischemic lesions in same-aged, community-dwelling elderly persons. The present study was […]

Reliability and validity of A Quick Test of Cognitive Speed for detecting early-stage dementia in elderly Japanese

Aim: The aim of this study was to evaluate the reliability and validity of A Quick Test of Cognitive Speed (AQT) for detecting early-stage dementia in the elderly Japanese population.; Methods: A total of 280 clinical participants (180 with mild Alzheimer’s disease, 43 with amnestic mild cognitive impairment, 32 with non-amnestic mild cognitive impairment and […]

Antidementia drug use among community-dwelling individuals with Alzheimer’s disease in Finland: a nationwide register-based study

The objective of this study was to investigate the prevalence of acetylcholinesterase inhibitor (AChEI) and memantine use, duration of treatment, concomitant use of these drugs, and factors associated with the discontinuation of AChEI therapy during 2006-2009. We utilized data from a nationwide sample of community-dwelling individuals with a clinically verified Alzheimer’s disease diagnosed during the […]

The Nottingham Health Profile: a feasible questionnaire for nursing home residents?

Background: The Nottingham Health Profile (NHP) assesses perceived emotional, social, and physical health problems and the extent to which such problems affect daily activities. The objective of our study was to determine the feasibility of the NHP for nursing home residents.; Methods: A prospective multicenter observational study was conducted in 11 nursing homes from April […]

Association of depression with accelerated cognitive decline among patients with type 2 diabetes in the ACCORD-MIND trial

Importance: Depression has been identified as a risk factor for dementia among patients with type 2 diabetes mellitus but the cognitive domains and patient groups most affected have not been identified.; Objective: To determine whether comorbid depression in patients with type 2 diabetes accelerates cognitive decline.; Design: A 40-month cohort study of participants in the […]

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