This database contains 61 studies, archived under the term: "cohort studies"
Click here to filter this large number of results.
Impact of smoking on cognitive decline in early old age: the Whitehall II cohort study
Sabia, Séverine,
Elbaz, Alexis,
Dugravot, Aline,
Head, Jenny,
Shipley, Martin,
Hagger-Johnson, Gareth,
Kivimaki, Mika,
Singh-Manoux, Archana
Context: Smoking is a possible risk factor for dementia, although its impact may have been underestimated in elderly populations because of the shorter life span of smokers.; Objective: To examine the association between smoking history and cognitive decline in the transition from midlife to old age.; Design: Cohort study.; Setting: The Whitehall II study. The […]
The effect of midlife physical activity on structural brain changes in the elderly
Rovio, Suvi,
Spulber, Gabriela,
Nieminen, Lasse J.,
Niskanen, Eini,
Winblad, Bengt,
Tuomilehto, Jaakko,
Nissinen, Aulikki,
Soininen, Hilkka,
Kivipelto, Miia
Physical activity has been associated with decreased dementia risk in recent studies, but the effects for structural brain changes (i.e. white matter lesions (WML) and/or brain atrophy) have remained unclear. The CAIDE participants were a random population-based sample studied in midlife and re-examined on average 21 years later (n=2000). A subpopulation (n=75; 31 control, 23 […]
Effect of treatment gaps in elderly patients with dementia treated with cholinesterase inhibitors
Pariente, A.,
Fourrier-Reglat, A.,
Bazin, F.,
Ducruet, T.,
Dartigues, J. F.,
Dragomir, A.,
Perreault, S.,
Moore, N.,
Moride, Y.
Objective: To determine the effect of treatment gaps on the risk of institutionalization or death among community-dwelling elderly patients treated with cholinesterase inhibitors (ChIs).; Methods: A survival analysis was conducted among a cohort of community-dwelling elderly patients (age 66+) newly treated with ChIs identified in the Quebec drug claims databases (Régie de l’Assurance Maladie du […]
Cognitive function, social integration and mortality in a U.S. national cohort study of older adults
Background: Prior research suggests an interaction between social networks and Alzheimer’s disease pathology and cognitive function, all predictors of survival in the elderly. We test the hypotheses that both social integration and cognitive function are independently associated with subsequent mortality and there is an interaction between social integration and cognitive function as related to mortality […]
Plasma free choline, betaine and cognitive performance: the Hordaland Health Study
Nurk, Eha,
Refsum, Helga,
Bjelland, Ingvar,
Drevon, Christian A.,
Tell, Grethe S.,
Ueland, Per M.,
Vollset, Stein E.,
Engedal, Knut,
Nygaard, Harald A.,
Smith, David A.
Choline and betaine are nutrients involved in one-carbon metabolism. Choline is essential for neurodevelopment and brain function. We studied the associations between cognitive function and plasma concentrations of free choline and betaine. In a cross-sectional study, 2195 subjects (55 % women), aged 70-74 years, underwent extensive cognitive testing including the Kendrick Object Learning Test (KOLT), […]
Effect of shunt operation on idiopathic normal pressure hydrocephalus patients in reducing caregiver burden: evidence from SINPHONI
Kazui, Hiroaki,
Mori, Etsuro,
Hashimoto, Masaaki,
Ishikawa, Masatsune,
Hirono, Nobutsugu,
Takeda, Masatoshi
Background/aims: Patients with idiopathic normal pressure hydrocephalus (iNPH) are often given shunt operations to reduce the triad symptoms (cognitive impairment, gait disturbance and urinary disturbance). We examined whether they also reduce caregiver burden.; Methods: The personal strain (PS) and role strain (RS) factors, which are related to the stress and constraints, respectively, on the caregivers […]
Prediction of dementia in primary care patients
Jessen, Frank,
Wiese, Birgitt,
Bickel, Horst,
Eiffländer-Gorfer, Sandra,
Fuchs, Angela,
Kaduszkiewicz, Hanna,
Köhler, Mirjam,
Luck, Tobias,
Mösch, Edelgard,
Pentzek, Michael,
Riedel-Heller, Steffi G.,
Wagner, Michael,
Weyerer, Siegfried,
Maier, Wolfgang,
van den Bussche, Hendrik
Background: Current approaches for AD prediction are based on biomarkers, which are however of restricted availability in primary care. AD prediction tools for primary care are therefore needed. We present a prediction score based on information that can be obtained in the primary care setting.; Methodology/principal Findings: We performed a longitudinal cohort study in 3.055 […]
Population screening for variant Creutzfeldt-Jakob disease using a novel blood test: diagnostic accuracy and feasibility study
Jackson, Graham S.,
Burk-Rafel, Jesse,
Edgeworth, Julie Ann,
Sicilia, Anita,
Abdilahi, Sabah,
Korteweg, Justine,
Mackey, Jonathan,
Thomas, Claire,
Wang, Guosu,
Schott, Jonathan M.,
Mummery, Catherine,
Chinnery, Patrick F.,
Mead, Simon,
Collinge, John
Importance: Our study indicates a prototype blood-based variant Creutzfeldt-Jakob disease (vCJD) assay has sufficient sensitivity and specificity to justify a large study comparing vCJD prevalence in the United Kingdom with a bovine spongiform encephalopathy-unexposed population. In a clinical diagnostic capacity, the assay’s likelihood ratios dramatically change an individual’s pretest disease odds to posttest probabilities and […]