This database contains 244 studies, archived under the term: "Cohort Study"
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Postoperative medical complications associated with anesthesia in older adults with dementia
Seitz, Dallas P.,
Gill, Sudeep S.,
Bell, Chaim M.,
Austin, Peter C.,
Gruneir, Andrea,
Anderson, Geoff M.,
Rochon, Paula A.
Objectives: To examine the association between anesthetic technique and postoperative complications in older adults with dementia undergoing hip fracture surgery.; Design: Population-based, retrospective cohort study.; Setting: Ontario, Canada.; Participants: All older adults with dementia who underwent surgery for hip fracture repair in Ontario, Canada, between April 1, 2003 and March 31, 2011.; Measurements: The baseline […]
Detection of cognitive impairment and dementia using the animal fluency test: the DECIDE study
Sebaldt, Rolf,
Dalziel, William,
Massoud, Fadi,
Tanguay, André,
Ward, Rick,
Thabane, Lehana,
Melnyk, Peter,
Landry, Pierre-Alexandre,
Lescrauwaet, Benedicte
Objectives: To evaluate the performance of a one-minute screening test measured against a validated 10-minute screening test for mild cognitive impairment (MCI) in detecting CI in patients aged > or = 65 years with two or more vascular risk factors (VRF).; Methods: Patients (n=1523) aged 65 years or older without documented CI symptoms or dementia […]
Glucose metabolism and PIB binding in carriers of a His163Tyr presenilin 1 mutation
Schöll, Michael,
Almkvist, Ove,
Axelman, Karin,
Stefanova, Elka,
Wall, Anders,
Westman, Eric,
Långström, Bengt,
Lannfelt, Lars,
Graff, Caroline,
Nordberg, Agneta
Six young related pre-symptomatic carriers of a His163Tyr mutation in the presenilin 1 gene who will develop early onset familial Alzheimer’s disease (eoFAD), and a control group of 23 non-carriers underwent (18)F-fluorodeoxyglucose positron emission tomography (FDG PET). The mutation carriers were followed-up after 2 years. Multivariate analysis showed clear separation of carriers from non-carriers on […]
Additional use of Aβ₄₂/Aβ₄₀ ratio with cerebrospinal fluid biomarkers P-tau and Aβ₄₂ increases the level of evidence of Alzheimer’s disease pathophysiological process in routine practice
Sauvée, Mathilde,
DidierLaurent, Guerric,
Latarche, Clotilde,
Escanyé, Marie-Christine,
Olivier, Jean-Luc,
Malaplate-Armand, Catherine
Background: Cerebrospinal fluid (CSF) biomarkers have recently been included in the criteria for the diagnosis of Alzheimer’s disease (AD). Since interpretation of CSF profile requires the combination of three parameters, biological data are not always conclusive and isolated elevation of phosphorylated tau (P-tau) or reduction of amyloid-β (Aβ)42 alone can be observed. In these cases, […]
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 […]