Survival Analysis

← Back to Domain-Specific Abstractions by Domain

4 domain-specific abstractions whose origin domain is Survival Analysis.

• Accelerated failure time model — Model covariates as multiplying an event-time scale—equivalently shifting log survival time—so coefficients are interpreted through time ratios rather than the constant hazard ratios of proportional-hazards regression.
• Discrete-time proportional hazards — A grouped-duration model whose conditional event probability in each interval is linked to covariates so their effects correspond to proportional underlying hazards or a specified discrete analogue.
• Logrank test — A nonparametric hypothesis test comparing the event-time distributions of groups by accumulating observed-minus-expected events across ordered failure times while accounting for right censoring.
• Recurrent event analysis — Statistical analysis of repeated event times experienced by the same observational unit.