Information gathered at the beginning of a study
from which variations found in the study are measured.
A known value
or quantity with which an unknown is compared when measured or assessed.
The initial time point in a clinical trial, just before a volunteer starts
to receive the experimental treatment undergoing testing. At this reference
point, measurable values such as CD4 count are recorded. Safety and efficacy
of a drug are often determined by monitoring changes from the baseline values.
an initial or known value (e.g., CD4 cell count, HIV
viral load) to which later measurements can be compared.
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