I.
Potential Errors In
Epidemiologic Studies
Introduction
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Errors In Epidemiologic Studies - Health - Lecture Slides, Slides of Public Health
This lecture belongs to lecture series on Health. Almost all topics related to health are covered in this course. Key points in this lecture are: Errors in Epidemiologic Studies, Potential Errors, Recognize the Possible, Bias and Confounding, Brain Storming, Non-Causal, Random Error
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2012/2013
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Potential Errors InEpidemiologic StudiesI.^ Introductiondocsity.com
LearningObjectives • Recognize the possibleresearch errors • Understand the differencebetween random error,bias and confoundingdocsity.com
Epidemiologic
research
studies^ are
performed
with a global objectiveto support and improvehealthdocsity.com
Thus, the main interest inEpidemiology is to detectrelationships^
between
exposures^
and^ health-
related^ events
aiming^ to
make correct decisions andguide people on healthdocsity.com
Brainstorming
Evaluate PlanningPossibleerror
Results Preventdocsity.com
RelationshipTrue^ False^ Non-causal^
Causal
docsity.com
Random errorRandom^ error
is^ the divergence^ due
to^ chance alone,^ of^ an^
observation^ on sample^ from
the^ true population^ value,
leading^ to lack^ of^
precision^ in measurement of associationdocsity.com
BiasBias is a systematic error inan epidemiologic^ study^
that results^ in^
an^ incorrect estimation^ of^
the^ association between exposure and health-related eventdocsity.com
ConclusionThere is always risk of error inany study. The researcher has tobe aware of the different types oferror, try^ to^ prevent
their occurrence^ and
evaluate^ the impact of the uncontrolled errorson the findingsdocsity.com