Time to Event

Definition

Health Economics

  • In clinical trials patients are recruited over a period and followed up to a fixed date or possible event such as death or recurrence of a tumour (negative), conception or discharge from hospital (usually positive) or cessation of breast feeding (neutral). The time between recruitment and the event is 'time to event' or survival (even when death is not the event in question). Subjects in the trial who survive to the fixed date but for whom the event has not occurred are said to have a censored survival time.
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