Relative SurvivalPopulation-Adjusted Survival, Expected-Ratio Survival
A survival measure comparing observed survival in a population to expected survival in a comparable general population, without needing cause-of-death data.
Survival Analysis
Terms for analysing time-to-event data and extrapolating survival curves for use in economic models.
- Topic: Survival Analysis
- 38 terms
- Editor reviewed
Restricted Cubic SplineRCS, Restricted Cubic Splines
A restricted cubic spline is a smooth piecewise cubic function of a continuous predictor constrained to be linear beyond its outer knots, allowing regression models to represent nonlinear associations without prescribing one global polynomial shape.
Restricted Mean Survival TimeRMST, Mean Survival to Horizon
A survival summary measure calculated as the area under the survival curve up to a specified time point, an alternative to the hazard ratio.
Right CensoringRight-Censored Data, Type I Censoring
The most common form of censoring, occurring when follow-up ends or a patient is lost before the event of interest has occurred.
Royston-Parmar ModelFlexible Parametric Survival Model, RP Spline Model
A class of flexible parametric survival models using restricted cubic splines to represent a transformed survival or hazard function while remaining fully parametric.