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Recurrent Postmenopausal Bleeding: a Prospective Cohort Study
Journal of Minimally Invasive Gynecology, 2014To estimate the prevalence of genital tract diseases in women with initial and recurrent postmenopausal bleeding (PMB) to help inform diagnostic pathways.Prospective cohort study (Canadian Task Force classification: II-2).Large urban teaching hospital.Of 1938 consecutive women with postmenopausal bleeding, 106 (5%) were investigated for a recurrent ...
Paul P, Smith +3 more
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Bias in observational study designs: prospective cohort studies
BMJ, 2014The Women’s Health Initiative Observational Study, a prospective cohort study, was designed to investigate causes of morbidity and mortality in postmenopausal women. In total, 93 676 women aged 50-79 years were recruited at 40 clinical centres throughout the United States between 1993 and 1998.
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Pain and disability retirement: A prospective cohort study
Pain, 2012This study examined the association of pain with subsequent disability retirement due to all causes as well as musculoskeletal diseases, mental disorders, and a heterogeneous group of other diseases and to study whether pain has an effect of its own after taking into account long-standing illness, physician-diagnosed diseases, working conditions, and ...
Lahelma Eero +11 more
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Prospective studies on a lithium cohort
Acta Psychiatrica Scandinavica, 1988ABSTRACTSince 1979, patients started on long‐term lithium treatment at the Psychiatric Hospital in Risskov have been followed systematically with recording of clinical and laboratory variables before the start of treatment, after 6 and 12 months of treatment, and thereafter at yearly intervals. By June 1987, 480 examinations had been carried out before
P, Vestergaard, M, Schou
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Postinfectious neurologic syndromes
Neurology, 2013Postinfectious neurologic syndromes (PINSs) of the CNS include heterogeneous disorders, sometimes relapsing. In this study, we aimed to a) describe the spectrum of PINSs; b) define predictors of outcome in PINSs; and c) assess the clinical/paraclinical features that help differentiate PINSs from multiple sclerosis (MS).In this prospective cohort study,
E. Marchioni +18 more
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Prospective and Retrospective Cohort Studies
2019Cohort studies are a type of observational study that follows samples of at-risk individuals forward in time to examine associations between measured exposures and future outcomes. Cohort studies have an essential role in evidence-based surgery.
Ramy Behman, Lev Bubis, Paul Karanicolas
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Mixed dementia: A prospective cohort study
Journal of the Neurological Sciences, 2009Alzheimer's disease associated with cerebrovascular disease is now considered the most frequent type of dementia. The aim is to study psychopathologicalfeaturesandclinicalevolutionofmixedcasesofdementiawithAlzheimer’s and vascular brain affection. 66 patients with mixed dementiawere admittedto a day-clinic at the Moscow Alzheimer’s disease center in ...
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Level 2 Evidence: Prospective Cohort Study
2019In the hierarchy used to classify evidence-based research in medicine, level 2 evidence includes prospective cohort studies. A prospective cohort study includes a research question developed prior to patient enrollment. This research design is particularly useful for assessing patient outcomes following a specific treatment or for assessing a specific ...
Naomi Roselaar +2 more
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Prospective cohort studies: advantages and disadvantages
BMJ, 2013Researchers investigated the association between opium use and subsequent risk of death. A prospective cohort study design was used. Participants were 50 045 people in north-eastern Iran aged 40-75 years at baseline. Recruitment took place between January 2004 and June 2008, and participants were followed until May 2011.
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