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This database contains 14 studies, archived under the term: "Correlation Study (also known as Ecological Study)"

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Tea Consumption and Cognitive Impairment: A Cross-Sectional Study among Chinese Elderly

Background: Laboratorial and epidemiological researches suggested that tea exhibited potential neuroprotective effect which may prevent cognitive impairment, but there were few data among the elderly aged 60 years and above in China.; Objective: The objective was to explore the relationship between characteristics of tea consumption and cognitive impairment.; Design: We analyzed the baseline data from […]

Family oversight and the quality of nursing home care for residents with advanced dementia

Background: The quality of nursing home (NH) care for residents with advanced dementia has been described as suboptimal. One relatively understudied factor in the provision of NH care is the role of private oversight and monitoring by family members and friends. Objective: To examine the association between private oversight and the quality of end-of-life care […]

Longitudinal medication usage in Alzheimer disease patients

This study examined in detail patterns of cholinesterase inhibitors (ChEIs) and memantine use and explored the relationship between patient characteristics and such use. Patients with probable Alzheimer disease AD (n=201) were recruited from the Predictors Study in 3 academic AD centers and followed from early disease stages for up to 6 years. Random effects logistic […]

Associations of anti-hypertensive treatments with Alzheimer’s disease, vascular dementia, and other dementias

We investigated whether angiotensin II receptor blockers (ARBs) and angiotensin converting enzyme inhibitors (ACE-Is) are more strongly associated with Alzheimer’s disease (AD), vascular dementia (VaD), and other dementias, than other anti-hypertensive drugs. We conducted a nested case-control analysis within the UK general practice research database, with prospectively recorded anti-hypertensive prescribing data. We sampled cases aged […]

Predictors of entering 24-h care for people with Alzheimer’s disease: Results from the LASER-AD study

Objectives: Many studies have investigated predictors of people with dementia entering 24-h care but this is the first to consider a comprehensive range of carer and care recipient (CR) characteristics derived from a systematic review, in a longitudinal cohort study followed up for several years. Methods: We interviewed 224 people with Alzheimer’s disease (AD) and […]

Treatment of vascular risk factors is associated with slower decline in Alzheimer disease

Background: There is growing evidence that vascular risk factors (VRF) contribute to cognitive decline. Whether their treatment can slow down the progression of Alzheimer disease (AD) remains unsettled. The aim of this observational study was to evaluate whether the treatment of VRF is associated with a slower cognitive decline in patients who have AD without […]

Use of anticholinergics and the risk of cognitive impairment in an African American population

Background: Anticholinergic properties of certain medications often go unrecognized, and are frequently used by the elderly population. Few studies have yet defined the long-term impact of these medications on the incidence of cognitive impairment. Methods: We report a 6-year longitudinal, observational study, evaluating 1,652 community-dwelling African American subjects over the age of 70 years who […]

Dietary antioxidants and dementia in a population-based case-control study among older people in South Germany

Oxidative stress is believed to play a central role in the pathogenesis of Alzheimer’s disease (AD), a neurodegenerative disease. Antioxidants may prevent the onset AD as high dietary intake of vitamin C and E were reported to be associated with lower risk of the disease. The objective of this study was to evaluate the serum […]

Screening cognition in the elderly with metabolic syndrome

Background: Metabolic syndrome reaches its highest prevalence in the elderly, and evidence suggests that metabolic syndrome could be an independent risk factor for cognitive impairment. The aims of this study were to detect whether patients with metabolic syndrome have lower cognition and to investigate whether there is a relationship with cognition and single metabolic syndrome […]

Dietary patterns are associated with cognition among older people with mild cognitive impairment

There has been increasing interest in the influence of diet on cognition in the elderly. This study examined the cross-sectional association between dietary patterns and cognition in a sample of 249 people aged 65-90 years with mild cognitive impairment (MCI). Two dietary patterns; whole and processed food; were identified using factor analysis from a 107-item; […]

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