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Observational study
Pronunciation
Definition 1
A type of study in which individuals are observed or certain outcomes are measured. No attempt is made to affect the outcome (for example, no treatment is given). (NCI Dictionary)
Definition 2
Studies among cancer patients and healthy populations that involve no intervention or alteration in the status of the participants. (NCI Thesaurus)
Definition 3
Studies in which biomedical and/or health outcomes are assessed in pre-defined groups of individuals. Subjects in the study may receive diagnostic, therapeutic, or other interventions, but the investigator does not assign specific interventions to the subjects of the study. (NCI Thesaurus/CDISC)
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The first day of an observation.
The date and time of the beginning of an observation.
The measure of uncertainty of an observation result. Numerical value(s) indicating the reliability of the observation measurement including quantities evaluated by statistical…
A particular category of the relationship that defines the meaning and purpose of a clinical study observation result relationship instance.
An additional description of the relationship between two or more observation outcomes. It could refer to the temporal, or sequential relationship, or…
An optional additional description of the observation result provided in a free text format.
