Results 11 to 20 of about 1,031,416 (263)

Confounding in observational studies based on large health care databases: problems and potential solutions – a primer for the clinician

Clinical Epidemiology, 2017
Mette Nørgaard,1 Vera Ehrenstein,1 Jan P Vandenbroucke1–3 1Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark; 2Department of Clinical Epidemiology, Leiden University Medical Center, The Netherlands ...
Nørgaard M, Ehrenstein V, Vandenbroucke JP   +2 more
doaj   +1 more source

Control of confounding in the analysis phase – an overview for clinicians

Clinical Epidemiology, 2017
Johnny Kahlert,1 Sigrid Bjerge Gribsholt,1,2 Henrik Gammelager,1,3 Olaf M Dekkers,1,4,5 George Luta1,6 1Department of Clinical Epidemiology, Institute of Clinical Medicine, 2Department of Endocrinology and Internal Medicine, 3Department of ...
Kahlert J, Gribsholt SB, Gammelager H, Dekkers OM, Luta G   +4 more
doaj   +1 more source

Confounding factors.

, 2022
Confounding factors.
Nandan H. Shetty (12436629), Mark Wang (4489561), Matthew I. Palmer (6819101), Robert M. Elliott (12436632), Patricia J. Culligan (190210)   +4 more
core   +1 more source

Bias in occupational epidemiology studies. [PDF]

, 2007
The design of occupational epidemiology studies should be based on the need to minimise random and systematic error. The latter is the focus of this paper, and includes selection bias, information bias and confounding.
Pearce, Neil, Kriebel, David, Checkoway, Harvey   +2 more
core   +1 more source

Confounding [PDF]

, 1987
The magnitude of confounding is examined in nine case studies of two "weak" relationships: between artificial sweeteners and bladder cancer, and between oral contraceptives and cervical dysplasia.
Stellman, Steven D.
core   +1 more source

Exchangeability of Measures of Association Before and After Exposure Status Is Flipped: Its Relationship With Confounding in the Counterfactual Model

Journal of Epidemiology, 2023
Background: The counterfactual definition of confounding is often explained in the context of exchangeability between the exposed and unexposed groups.
Etsuji Suzuki, Michio Yamamoto, Eiji Yamamoto   +2 more
doaj   +1 more source

Study Designs and Statistical Analyses for Biomarker Research

Sensors, 2012
Biomarkers are becoming increasingly important for streamlining drug discovery and development. In addition, biomarkers are widely expected to be used as a tool for disease diagnosis, personalized medication, and surrogate endpoints in clinical research.
Yasunori Sato, Kengo Nagashima, Masahiko Gosho   +2 more
doaj   +1 more source

Confounding in publications of observational intervention studies [PDF]

, 2007
We conducted a systematic literature search in Medline to assess the proportion of observational intervention studies appreciating confounding bias in peer-reviewed medical literature from 1985 through 2005.
Arno W. Hoes, Groenwold, Rolf H. H., Hak, Eelko, Rolf H. H. Groenwold, Hoes, Arno W., Eelko Hak   +5 more
core   +1 more source

Need for and practical interpretations of the person-year construct in neuropsychiatric research

Indian Journal of Psychological Medicine, 2019
In observational studies, groups of interest may be carved out of predictors of interest. Thus, for example, if cardiovascular (CVS) health at age 50 years is the predictor of interest for dementia as the long-term outcome, groups of interest could ...
Chittaranjan Andrade
doaj   +1 more source

Genetic ancestry influences gene-environment interactions with sociocultural factors: Results from the Hispanic Community Health Study/Study of Latinos

HGG Advances
Summary: Often, studies will aggregate all participants identified as Hispanic/Latino, despite genetic and environmental substructures, preventing the meaningful interrogation of the roles of genetics and environment in human health.
Jayati Sharma, Cristin E. McArdle, Mariaelisa Graff, Christina Cordero, Martha Daviglus, Linda C. Gallo, Carmen R. Isasi, Tanika N. Kelly, Krista M. Perreira, Gregory A. Talavera, Jianwen Cai, Kari E. North, Lindsay Fernández-Rhodes, Genevieve L. Wojcik   +13 more
doaj   +1 more source