Research Topics
| Vianda S StelSummaryAffiliation: Academic Medical Center Country: The Netherlands Publications
| Collaborators
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Detail Information
Publications
Residual renal function at the start of dialysis and clinical outcomesVianda S Stel
Department of Medical Informatics, ERA EDTA Registry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
Nephrol Dial Transplant 24:3175-82. 2009..This study evaluates the association between estimated GFR (eGFR) at the start of dialysis and mortality within Europe...
Time trend in access to the waiting list and renal transplantation: a comparison of four European countriesVianda S Stel
ERA EDTA Registry, Department of Medical Informatics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
Nephrol Dial Transplant 27:3621-31. 2012..To examine the time trend and international differences in access to the waiting list and renal transplantation of patients with end-stage kidney disease...
Survival analysis II: Cox regressionVianda S Stel
ERA EDTA Registry, Department of Medical Informatics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
Nephron Clin Pract 119:c255-60. 2011..The purpose of this article is to explain the basic concepts of the Cox regression method, and to provide some guidance regarding the presentation of the results...
Level of renal function in patients starting dialysis: an ERA-EDTA Registry studyVianda S Stel
ERA EDTA Registry, Department of Medical Informatics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
Nephrol Dial Transplant 25:3315-25. 2010....
The randomized controlled trialVianda S Stel
European Renal Association European Dialysis and Transplant Association Registry, Department of Medical Informatics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
Nephron Clin Pract 113:c337-42. 2009..Nevertheless, if conducted properly, RCTs remain the gold standard for studying the effects of therapy and other interventions...
Survival analysis I: the Kaplan-Meier methodVianda S Stel
ERA EDTA Registry, Department of Medical Informatics, Academic Medical Center, University of Amsterdam, The Netherlands
Nephron Clin Pract 119:c83-8. 2011..To do this, we use a clinical example derived from the nephrology literature...
The randomized clinical trial: an unbeatable standard in clinical research?V S Stel
Department of Medical Informatics, ERA EDTA Registry, Academic Medical Center, University of Amsterdam, 1100 DE Amsterdam, The Netherlands
Kidney Int 72:539-42. 2007..Usually, results from observational studies are needed to come to a hypothesis that can subsequently be tested within an RCT. Moreover, observational data are most often more useful than RCTs for non-therapeutic studies...
Prevalence of co-morbidity in different European RRT populations and its effect on access to renal transplantationVianda S Stel
ERA EDTA Registry, Department of Medical Informatics, Academic Medical Center, University of Amsterdam, J1b 113 1, PO Box 22700, 1100 DE Amsterdam, The Netherlands
Nephrol Dial Transplant 20:2803-11. 2005..This study compared the prevalence of co-morbidity in patients starting renal replacement therapy (RRT) between European countries and further examined how co-morbidity affects access to transplantation...
Confounding effect of comorbidity in survival studies in patients on renal replacement therapyJeannette G van Manen
ERA EDTA Registry, Department of Medical Informatics, J1B 125, Academic Medical Center, PO Box 22700, 1100 DE Amsterdam, The Netherlands
Nephrol Dial Transplant 22:187-95. 2007..After taking other confounding factors into account, the impact of comorbidity on mortality was investigated when comparing mortality between five European countries, dialysis modalities and renal disease groups...
The 2006 ERA-EDTA Registry annual report: a précisVianda S Stel
ERA EDTA Registry, Department of Medical Informatics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
J Nephrol 22:1-12. 2009..This paper provides a summary of the 2006 European Renal Association-European Dialysis and Transplant Association (ERA-EDTA) Registry report...
Effects of comorbid and demographic factors on dialysis modality choice and related patient survival in EuropeMoniek W M van de Luijtgaarden
ERA EDTA Registry, Department of Medical Informatics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
Nephrol Dial Transplant 26:2940-7. 2011..We assessed dialysis modality choice within subgroups of patients with these comorbidities and in different age categories and subsequently evaluated the association between modality choice and patient survival in these subgroups...
The effect of timing of the first kidney transplantation on survival in children initiating renal replacement therapyAnneke Kramer
ERA EDTA Registry, Department of Medical Informatics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
Nephrol Dial Transplant 27:1256-64. 2012..Our aim was to estimate the effect of timing of the first transplantation on patient survival in children, for the first time also taking into account the mortality on dialysis before transplantation...
Characteristics and survival of young adults who started renal replacement therapy during childhoodAnneke Kramer
Department of Medical Informatics, ERA EDTA Registry, Academic Medical Center, Amsterdam, The Netherlands
Nephrol Dial Transplant 24:926-33. 2009..The aim of this study was to describe patient demographics, primary renal diseases, treatment history and determine the risk factors for mortality of these young adults who started RRT in childhood...
Factors influencing the decision to start renal replacement therapy: results of a survey among European nephrologistsMoniek W M van de Luijtgaarden
European Renal Association European Dialysis and Transplant Association Registry, Department of Medical Informatics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
Am J Kidney Dis 60:940-8. 2012..Little is known about the criteria nephrologists use in the decision of when to start renal replacement therapy (RRT) in early referred adult patients. We evaluated opinions of European nephrologists on the decision for when to start RRT...
The issue of studying the effect of interventions in renal replacement therapy -- to what extent may we be deceived by selection and competing risk?Kitty J Jager
ERA EDTA Registry, Department of Medical Informatics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
Nephrol Dial Transplant 25:3836-9. 2010..We suggest that the results from well-conducted high-quality studies in incident RRT patients without or with only very limited in- and exclusion criteria are likely the ones best qualified to be extrapolated to other RRT populations...
Association between pre-transplant dialysis modality and patient and graft survival after kidney transplantationAnneke Kramer
ERA EDTA Registry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
Nephrol Dial Transplant 27:4473-80. 2012..We aimed to examine this relationship using the instrumental variable method and to compare the results with standard Cox regression...
Exploring the association between macroeconomic indicators and dialysis mortalityAnneke Kramer
European Renal Association European Dialysis and TransplantationAssociation Registry, Academic Medical Center, University of Amsterdam, The Netherlands
Clin J Am Soc Nephrol 7:1655-63. 2012....
Effect of general population mortality on the north-south mortality gradient in patients on replacement therapy in EuropeP C W van Dijk
ERA EDTA Registry, Department of Medical Informatics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
Kidney Int 71:53-9. 2007..Our data support the hypothesis that general population mortality is an important factor to take into account when making RRT mortality comparisons...
The valuable contribution of observational studies to nephrologyK J Jager
ERA EDTA Registry, Department of Medical Informatics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
Kidney Int 72:671-5. 2007..Strengths and weaknesses of the different observational study designs are discussed. Finally, it is concluded that both observational studies and RCTs fulfill a complementary and valuable role in nephrology...
Diagnostic methods I: sensitivity, specificity, and other measures of accuracyKarlijn J van Stralen
Department of Medical Informatics, ERA EDTA Registry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
Kidney Int 75:1257-63. 2009..Therefore, it is not sufficient to determine the accuracy of a single test; one also needs to determine its additional value to the patient's diagnosis, treatment, or outcome as part of a diagnostic strategy...
A classification tree for predicting recurrent falling in community-dwelling older personsVianda S Stel
Institute for Research in Extramural Medicine (EMGO Institute, VU University Medical Center, Amsterdam, The Netherlands
J Am Geriatr Soc 51:1356-64. 2003..The classification tree can identify subjects who are eligible for preventive measures in public health strategies...
A risk profile for identifying community-dwelling elderly with a high risk of recurrent falling: results of a 3-year prospective studyS M F Pluijm
Institute for Research in Extramural Medicine (EMGO-Institute, VU University Medical Center (VUMC, Amsterdam, The Netherlands
Osteoporos Int 17:417-25. 2006..A risk profile including nine predictors that can easily be assessed seems to be a useful tool for the identification of community-dwelling elderly with a high risk of recurrent falling...
Functional limitations and poor physical performance as independent risk factors for self-reported fractures in older personsV S Stel
Institute for Research in Extramural Medicine (EMGO Institute, VU University Medical Center, Amsterdam, The Netherlands
Osteoporos Int 15:742-50. 2004..No significant interaction terms were found. CONCLUSIONS: Functional limitations and poor physical performance were independent risk factors for fractures...
The QUEST initiative anemia study in ESRD: rationale and study protocolLucia Del Vecchio
Department of Hypertension and Preventive Nephrology, IRCCS Multimedica, Sesto San Giovanni, Milan - Italy
J Nephrol 20:547-53. 2007
The QUEST initiative anemia study in transplant patients: rationale and study protocolWim Van Biesen
Renal Division, University Hospital Ghent, Ghent - Belgium
J Nephrol 20:543-6. 2007
