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This database contains 148 studies, archived under the term: "epidemiology"

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Association between chemotherapy and cognitive impairments in a large cohort of patients with colorectal cancer

No population-based study has been conducted on the relationship between chemotherapy and the risk of cognitive impairments in patients with colorectal cancer. This study aimed to determine this association in a large population-based cohort of patients. We studied 72,374 men and women who were diagnosed with stages I-III colorectal cancer at age ≥ 65 years […]

Silicon-rich mineral water as a non-invasive test of the ‘aluminum hypothesis’ in Alzheimer’s disease

There has been a plausible link between human exposure to aluminum and Alzheimer’s disease for several decades. We contend that the only direct and ethically acceptable experimental test of the ‘aluminum hypothesis’, which would provide unequivocal data specific to the link, is to test the null hypothesis that a reduction in the body burden of […]

Continuous use of antipsychotics and its association with mortality and hospitalization in institutionalized Chinese older adults: an 18-month prospective cohort study

Background: Previous meta-analyses have suggested that antipsychotics are associated with increased mortality in dementia patients with behavioral and psychological symptoms (BPSD). Subsequent observational studies, however, have produced conflicting results. In view of this controversy and the lack of any suitable pharmacological alternative for BPSD, this study aimed to investigate the relationship between continuous use of […]

Safety and effectiveness of donepezil on behavioral symptoms in patients with Alzheimer disease

The objective of this study was to evaluate the prevalence and treatment responsiveness of neuropsychiatric symptoms in patients with mild to moderately severe Alzheimer disease recruited in a naturalistic treatment setting in Spain. All the patients, who matched the prescribing recommendations for donepezil and were able to participate in the study, received donepezil (5 to […]

Evidence for neurocognitive plasticity in at-risk older adults: the experience corps program

Objective: To determine whether Experience Corps (EC), a social service program, would improve age-vulnerable executive functions and increase activity in brain regions in a high-risk group through increased cognitive and physical activity.; Methods: Eight community-dwelling, older female volunteers and nine matched wait-list controls were recruited to serve in the ongoing EC: Baltimore program in three […]

Depression as a risk factor or prodromal feature for dementia? Findings in a population-based sample of Swedish twins

This study tested whether history of depression is associated with an increased likelihood of dementia, and whether a first depressive episode earlier in life is associated with increased dementia risk, or whether only depressive episodes close in time to dementia onset are related to dementia. Depression information came from national hospital discharge registries, medical history, […]

Risk of incident dementia in drug-untreated arterial hypertension: a population-based study

Arterial hypertension in midlife may increase the risk of late-life dementia. Notably, there is conflicting data as to whether hypertension in the elderly (age 65 years and older) is a risk factor for dementia and Alzheimer’s disease (AD). We determined whether drug-untreated hypertension was associated with a higher risk of incident dementia and AD. In […]

Obesity and impaired cognitive functioning in the elderly: a population-based cross-sectional study (NEDICES)

Background and Purpose: Studies of high body mass index (BMI) and cognition in the elderly have shown conflicting results. While some studies have shown a detrimental effect of high BMI on cognitive function, others have observed beneficial effects on cognition. Our aim was to assess cognitive function in a large population-based sample of overweight (BMI […]

Flavonoid intake and disability-adjusted life years due to Alzheimer’s and related dementias: a population-based study involving twenty-three developed countries

Objective: Dietary flavonoids and their metabolites may have neuroprotective effects against age-associated neurodegenerative disorders such as Alzheimer’s and related dementias (dementia). There is a lack of population studies, however, on correlations between flavonoid intake and dementia. The main objective of the present study was to analyse such a relationship at a large-scale population level.; Design: […]

Cognitive function and common mental disorders in older people with vascular and non-vascular disorders: a national survey

Objective: Vascular disorders are important potential causes of cognitive impairment and common mental disorders but their specificity as risk factors has yet to be clarified. The objectives of this analysis were to compare vascular and non-vascular health problems with respect to their associations with cognitive function and common mental disorder.; Method: An analysis was carried […]

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