Lifelines - Survival Analysis

In medicine, we often care about "Time to Event" (death, recovery, relapse). Lifelines handles the complexity of "censored" data (patients who left the study).

When to Use

• Analyzing clinical trial data (time to death, disease progression).
• Comparing survival between treatment groups.
• Identifying risk factors using Cox Proportional Hazards regression.
• Building survival models for prognosis.
• Epidemiology studies (time to infection, recovery).

Core Principles

Censoring

Patients who haven't experienced the event by the end of the study are "censored". Lifelines properly accounts for this.

Hazard Ratios