Survival Analysis

**Semantic type:** Research Activity

**Definition:** A statistical method that analyzes the duration of time until an event of interest occurs, such as the time to death after diagnosis, disease recurrence, or treatment effectiveness, and is used to understand the probability of an event occurring over time. Methods used include Kaplan-Meier curves, Log-rank tests, and Cox proportional hazards models.

**Synonyms:** - Survival Analysis Technique