User profiles for R. H. Groenwold
Rolf Groenwoldprofessor of Clinical Epidemiology, LUMC, Leiden University Verified email at lumc.nl Cited by 13659 |
Benzodiazepine-associated delirium in critically ill adults
Purpose The association between benzodiazepine use and delirium risk in the ICU remains
unclear. Prior investigations have failed to account for disease severity prior to delirium …
unclear. Prior investigations have failed to account for disease severity prior to delirium …
[PDF][PDF] Instrumental variable analysis in epidemiologic studies: an overview of the estimation methods
…, A de Boer, SV Belitser, RH Groenwold… - Pharm Anal …, 2015 - researchgate.net
Instrumental variables (IV) analysis seems an attractive method to control for unmeasured
confounding in observational epidemiological studies. Here, we provide an overview of the …
confounding in observational epidemiological studies. Here, we provide an overview of the …
Attributable mortality of vancomycin resistance in ampicillin-resistant Enterococcus faecium bacteremia in Denmark and the Netherlands: a matched cohort study
…, JM Ossewaarde, RH Groenwold… - Infection Control & …, 2022 - cambridge.org
Objective:To study whether replacement of nosocomial ampicillin-resistant Enterococcus
faecium (ARE) clones by vancomycin-resistant E. faecium (VRE), belonging to the same …
faecium (ARE) clones by vancomycin-resistant E. faecium (VRE), belonging to the same …
Pessary placement in the prevention of preterm birth in multiple pregnancies: a propensity score analysis
MJM Monfrance, E Schuit, RH Groenwold… - European Journal of …, 2016 - Elsevier
Objective In asymptomatic women with a multiple pregnancy and short cervix prophylactic
use of a cervical pessary might reduce preterm birth. We assessed the possible treatment …
use of a cervical pessary might reduce preterm birth. We assessed the possible treatment …
Propensity scores in observational research
RH Groenwold - Nederlands Tijdschrift Voor Geneeskunde, 2013 - europepmc.org
A propensity score is the probability of being treated or exposed, given measured
confounders such as age. Propensity score methods can control for measured confounders in …
confounders such as age. Propensity score methods can control for measured confounders in …
Three types of bias: distortion of research results and how that can be prevented
RH Groenwold - Nederlands Tijdschrift Voor Geneeskunde, 2013 - europepmc.org
A systematic distortion of the relationship between a treatment, risk factor or exposure and
clinical outcomes is denoted by the term'bias'. Three types of bias can be distinguished: …
clinical outcomes is denoted by the term'bias'. Three types of bias can be distinguished: …
Performance indicators for hospitals
S Siregar, RH Groenwold, M Versteegh… - Nederlands Tijdschrift …, 2012 - europepmc.org
A good performance indicator reflects the quality of care and uses clinical outcomes. When
outcomes are difficult to obtain, process and structure variables can provide a good picture of …
outcomes are difficult to obtain, process and structure variables can provide a good picture of …
Bias in observational research:'confounding'
RH Groenwold - Nederlands Tijdschrift Voor Geneeskunde, 2012 - europepmc.org
Confounding is an important and common issue in observational (non-randomized)
research on the effects of pharmaceuticals or exposure to etiologic factors (determinants). …
research on the effects of pharmaceuticals or exposure to etiologic factors (determinants). …
Effect modification and interaction
MJ Knol, RH Groenwold - Nederlands Tijdschrift Voor Geneeskunde, 2015 - europepmc.org
Effect modification and interaction are terms often used in medical research. However, the
analysis of effect modification and interaction has differing objectives. These two phenomena …
analysis of effect modification and interaction has differing objectives. These two phenomena …
[PDF][PDF] A comparison between full text mining and searching in title, abstract and keywords for systematic reviews of epidemiological practice
…, FR Rosendaal, RH Groenwold - Bas Penning …, 2020 - scholarlypublications …
Objective. Article full texts are often inaccessible via the standard search engines of
biomedical literature, such as PubMed and Embase, which are commonly used for systematic …
biomedical literature, such as PubMed and Embase, which are commonly used for systematic …