Search Results - "Dekkers, Olaf M"

A comparison of different methods to handle missing data in the context of propensity score analysis by Choi, Jungyeon, Dekkers, Olaf M., le Cessie, Saskia

“…Propensity score analysis is a popular method to control for confounding in observational studies. A challenge in propensity methods is missing values in…”
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COSMOS-E: Guidance on conducting systematic reviews and meta-analyses of observational studies of etiology by Dekkers, Olaf M, Vandenbroucke, Jan P, Cevallos, Myriam, Renehan, Andrew G, Altman, Douglas G, Egger, Matthias

“…To our knowledge, no publication providing overarching guidance on the conduct of systematic reviews of observational studies of etiology exists. Conducting…”
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Insulin resistance and risk of incident cardiovascular events in adults without diabetes: meta-analysis by Gast, Karin B, Tjeerdema, Nathanja, Stijnen, Theo, Smit, Johannes W A, Dekkers, Olaf M

“…Glucose, insulin and Homeostasis Model Assessment Insulin Resistance (HOMA-IR) are markers of insulin resistance. The objective of this study is to compare…”
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Adrenal Insufficiency in Corticosteroids Use: Systematic Review and Meta-Analysis by Broersen, Leonie H. A, Pereira, Alberto M, Jørgensen, Jens Otto L, Dekkers, Olaf M

“…Objective: We aimed to estimate pooled percentages of patients with adrenal insufficiency after treatment with corticosteroids for various conditions in a…”
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Combined oral contraceptives: venous thrombosis by de Bastos, Marcos, Stegeman, Bernardine H, Rosendaal, Frits R, Van Hylckama Vlieg, Astrid, Helmerhorst, Frans M, Stijnen, Theo, Dekkers, Olaf M

“…Combined oral contraceptive (COC) use has been associated with venous thrombosis (VT) (i.e., deep venous thrombosis and pulmonary embolism). The VT risk has…”
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Acromegaly incidence, prevalence, complications and long-term prognosis: a nationwide cohort study by Dal, Jakob, Feldt-Rasmussen, Ulla, Andersen, Marianne, Kristensen, Lars Ø, Laurberg, Peter, Pedersen, Lars, Dekkers, Olaf M, Sørensen, Henrik Toft, Jørgensen, Jens Otto L

“…Design Valid data on acromegaly incidence, complications and mortality are scarce. The Danish Health Care System enables nationwide studies with complete…”
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The epidemiology of aggressive pituitary tumors (and its challenges) by Dekkers, Olaf M., Karavitaki, Niki, Pereira, Alberto M.

“…Pituitary tumors are not rare if prevalence rates from autopsy or radiological series are considered; approximately 0.5% of all pituitary adenomas will come to…”
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Heart rate variability and first cardiovascular event in populations without known cardiovascular disease: meta-analysis and dose-response meta-regression by Hillebrand, Stefanie, Gast, Karin B, de Mutsert, Renée, Swenne, Cees A, Jukema, J Wouter, Middeldorp, Saskia, Rosendaal, Frits R, Dekkers, Olaf M

“…Heart rate variability (HRV) is associated with cardiovascular disease (CVD) in individuals with known CVD. It is less clear whether HRV is associated with a…”
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Risk of Recurrent Venous Thromboembolism and Mortality in Patients With Cancer Incidentally Diagnosed With Pulmonary Embolism: A Comparison With Symptomatic Patients by DEN EXTER, Paul L, HOOIJER, José, DEKKERS, Olaf M, HUISMAN, Menno V

“…The routine use of modern computed tomography scanners has led to an increased detection of incidental pulmonary embolism (PE), in particular in patients with…”
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Time interval of increased risk for Clostridium difficile infection after exposure to antibiotics by Hensgens, Marjolein P. M., Goorhuis, Abraham, Dekkers, Olaf M., Kuijper, Ed J.

“…Background Clostridium difficile infections (CDIs) are common in developed countries and affect >250 000 hospitalized patients annually in the USA. The most…”
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Impact of recurrent mitral regurgitation after mitral valve repair for functional mitral regurgitation: long-term analysis of competing outcomes by Petrus, Annelieke H J, Dekkers, Olaf M, Tops, Laurens F, Timmer, Eva, Klautz, Robert J M, Braun, Jerry

“…Abstract Aims Recurrent mitral regurgitation (MR) has been reported after mitral valve repair for functional MR. However, the impact of recurrent MR on…”
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Surgery as a Viable Alternative First-Line Treatment for Prolactinoma Patients. A Systematic Review and Meta-Analysis by Zamanipoor Najafabadi, Amir H, Zandbergen, Ingrid M, de Vries, Friso, Broersen, Leonie H A, van den Akker-van Marle, M Elske, Pereira, Alberto M, Peul, Wilco C, Dekkers, Olaf M, van Furth, Wouter R, Biermasz, Nienke R

“…Abstract Context The improved remission and complication rates of current transsphenoidal surgery warrant reappraisal of the position of surgery as a viable…”
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Hypothyroidism and hyperthyroidism and breast cancer risk: a nationwide cohort study by Søgaard, Mette, Farkas, Dóra Körmendiné, Ehrenstein, Vera, Jørgensen, Jens Otto Lunde, Dekkers, Olaf M, Sørensen, Henrik Toft

“…ObjectiveThe association between thyroid disease and breast cancer risk remains unclear. We, therefore examined the association between hypothyroidism,…”
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Genetic variants in ANCA-associated vasculitis: a meta-analysis by Rahmattulla, Chinar, Mooyaart, Antien L, van Hooven, Daphne, Schoones, Jan W, Bruijn, Jan A, Dekkers, Olaf M, Bajema, Ingeborg M

“…Genetic factors may influence the pathogenic pathways leading to antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV). We performed a…”
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Migraine biomarkers in cerebrospinal fluid: A systematic review and meta-analysis by van Dongen, Robin M, Zielman, Ronald, Noga, Marek, Dekkers, Olaf M, Hankemeier, Thomas, van den Maagdenberg, Arn Mjm, Terwindt, Gisela M, Ferrari, Michel D

“…Objective To perform a meta-analysis of migraine biomarkers in cerebrospinal fluid (CSF) and of corresponding blood concentrations. Methods We conducted a…”
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Arrhythmogenic anatomical isthmuses identified by electroanatomical mapping are the substrate for ventricular tachycardia in repaired Tetralogy of Fallot by Kapel, Gijsbert F L, Sacher, Frédéric, Dekkers, Olaf M, Watanabe, Masaya, Blom, Nico A, Thambo, Jean-Benoît, Derval, Nicolas, Schalij, Martin J, Jalal, Zakaria, Wijnmaalen, Adrianus P, Zeppenfeld, Katja

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Association between use of systemic and inhaled glucocorticoids and changes in brain volume and white matter microstructure: a cross-sectional study using data from the UK Biobank by van der Meulen, Merel, Amaya, Jorge Miguel, Dekkers, Olaf M, Meijer, Onno C

“…ObjectiveTo test the hypothesis that systemic and inhaled glucocorticoid use is associated with changes in grey matter volume (GMV) and white matter…”
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Major Bleeding Rates in Atrial Fibrillation Patients on Single, Dual, or Triple Antithrombotic Therapy by van Rein, Nienke, Heide-Jørgensen, Uffe, Lijfering, Willem M, Dekkers, Olaf M, Sørensen, Henrik T, Cannegieter, Suzanne C

“…Patients with atrial fibrillation generally require anticoagulant therapy and, at times, therapy with additional platelet aggregation inhibitors. Data are…”
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Mortality in patients with Cushing's disease more than 10 years after remission: a multicentre, multinational, retrospective cohort study by Clayton, Richard N, Prof, Jones, Peter W, Prof, Reulen, Raoul C, Prof, Stewart, Paul M, Prof, Hassan-Smith, Zaki K, PhD, Ntali, Georgia, MD, Karavitaki, Niki, PhD, Dekkers, Olaf M, Prof, Pereira, Alberto M, Prof, Bolland, Mark, PhD, Holdaway, Ian, Prof, Lindholm, Jorgen, Prof

“…Summary Background No agreement has been reached on the long-term survival prospects for patients with Cushing's disease. We studied life expectancy in…”
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Control of confounding in the analysis phase - an overview for clinicians by Kahlert, Johnny, Gribsholt, Sigrid Bjerge, Gammelager, Henrik, Dekkers, Olaf M, Luta, George

“…In observational studies, control of confounding can be done in the design and analysis phases. Using examples from large health care database studies, this…”
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