Bla ordlisten:
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lead-time bias
— An apparent increase in survival due to detecting a health condition such as cancer at an early stage, when there is no actual effect on survival, just a longer period with the diagnosis.; … (read more)
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length-time bias
(length bias)
— In screening, an apparent increase in survival due to detecting disease earlier than it would otherwise have been detected; … (read more)
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level of evidence
(hierarchy of evidence)
— An indication of where a type of study lies in a hierarchy of evidence, based on the risk of bias; … (read more)
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likelihood
(probability, risk)
— The probability that an event, association, or difference will occur in a study or in practice; … (read more)
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likelihood ratio
— A measure of the accuracy of a screening or diagnostic test; … (read more)
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loss to follow-up
(attrition, drop-outs)
— The loss of participants during the course of a study; … (read more)
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low certainty of the evidence
(low confidence in the effect estimate, low quality of the evidence, low strength of the evidence)
— The research provides some indication of the likely effect. However, the likelihood that the actual effect will be substantially different is high; … (read more)
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low risk of bias
(internal validity)
— In studies of treatment effects, the extent to which the design and conduct of a study eliminates or reduces bias; … (read more)