stats
Kaplan-Meier Survival Analysis
Product-limit survival curve with Greenwood CI, median survival, and log-rank test for two groups.
Subject Data
Mode
| Time | Event (0/1) | |
|---|---|---|
Results
n (Group 1)—
Events (G1)—
Median survival (G1)—
S(tᵢ) = S(tᵢ₋₁) × (1 − dᵢ/nᵢ) · Greenwood SE: S(t)√Σ dᵢ/(nᵢ(nᵢ−dᵢ))
Log-rank: χ² = (Σ(O₁−E₁))² / ΣV · E₁ = (n₁/n)×d
Log-rank: χ² = (Σ(O₁−E₁))² / ΣV · E₁ = (n₁/n)×d