Bias
Also known asBias, Epidemiologic · Epidemiologic Biases · Biase, Epidemiologic · Biases, Epidemiologic · Epidemiologic Biase · Biases · Ecological Bias · Ecological Biases · Bias, Ecological · Ecological Fallacies · Ecological Fallacy · Fallacies, Ecological
Definition
Any deviation of results or inferences from the truth, or processes leading to such deviation. Bias can result from several sources: one-sided or systematic variations in measurement from the true value (systematic error); flaws in study design; deviation of inferences, interpretations, or analyses based on flawed data or data collection; etc. There is no sense of prejudice or subjectivity implied in the assessment of bias under these conditions.
MeSH classification
- N05.715.350.150
- N06.850.490.500
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Age Factors
Age as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or the effect of a c…
Age of Onset
The age, developmental stage, or period of life at which a disease or the initial symptoms or manifestations of a disease appear in an indiv…
Causality
The relating of causes to the effects they produce. Causes are termed necessary when they must always precede an effect and sufficient when …
Cohort Effect
Variation in health status arising from different causal factors to which each birth cohort in a population is exposed as environment and so…
Comorbidity
The presence of co-existing or additional diseases with reference to an initial diagnosis or with reference to the index condition that is t…
Confounding Factors, Epidemiologic
Factors that can cause or prevent the outcome of interest but are not intermediate variables of the factor(s) under investigation.
Source: NIH MeSH 2026 (D015982) — National Library of Medicine, public domain. View official MeSH record ↗