%0 Journal Article %1 Choi1992 %A Choi, B C %A Noseworthy, A L %D 1992 %J Journal of occupational medicine. : official publication of the Industrial Medical Association %K Bias(Epidemiology) Epidemiology Humans ObserverVariation PreventiveMedicine ResearchDesign SelectionBias %N 3 %P 265-71 %T Classification, direction, and prevention of bias in epidemiologic research. %U http://www.ncbi.nlm.nih.gov/pubmed/1545278 %V 34 %X We describe an extension of an existing framework used by several investigators for classifying various types of bias. The framework consists of three categories of bias: selection, information, and confounding. The existing framework is expanded to include subclassification according to the type of study design: cross-sectional, case-control, retrospective cohort, and prospective cohort. Direction and method of prevention of biases within each category in the framework are discussed. This article provides a useful checklist for epidemiologists to determine possible sources and methods of reduction of bias that are specific to a particular type of study design.

@article{Choi1992, abstract = {We describe an extension of an existing framework used by several investigators for classifying various types of bias. The framework consists of three categories of bias: selection, information, and confounding. The existing framework is expanded to include subclassification according to the type of study design: cross-sectional, case-control, retrospective cohort, and prospective cohort. Direction and method of prevention of biases within each category in the framework are discussed. This article provides a useful checklist for epidemiologists to determine possible sources and methods of reduction of bias that are specific to a particular type of study design.}, added-at = {2023-02-03T11:44:35.000+0100}, author = {Choi, B C and Noseworthy, A L}, biburl = {https://www.bibsonomy.org/bibtex/28c5c73c75a8fbda9a083948e1c7380c4/jepcastel}, interhash = {b61f18b1db3a160199065e1fe5388d3c}, intrahash = {8c5c73c75a8fbda9a083948e1c7380c4}, issn = {0096-1736}, journal = {Journal of occupational medicine. : official publication of the Industrial Medical Association}, keywords = {Bias(Epidemiology) Epidemiology Humans ObserverVariation PreventiveMedicine ResearchDesign SelectionBias}, month = {3}, note = {2464<m:linebreak></m:linebreak>Mesures d&#039;associació; Bias}, number = 3, pages = {265-71}, pmid = {1545278}, timestamp = {2023-02-03T11:44:35.000+0100}, title = {Classification, direction, and prevention of bias in epidemiologic research.}, url = {http://www.ncbi.nlm.nih.gov/pubmed/1545278}, volume = 34, year = 1992 }