﻿ Cox Regression (Survival Analysis) : WinSTAT Statistics Software Add-In for Excel

the Statistics Add-In for Microsoft® Excel

## Survival Analysis (Cox-Regression)

#### Sample Results as an Excel Table:

 Cox regression Survival time: Survival Time Event: Death X-Variables: Treatment numeric Age Method: Direct Steps P -2 Log- Likelihood Chi-Square Degrees of Freedom P Total Treatment numeric(+) ---- ---- ---- ---- ---- Age(+) ---- ---- ---- ---- ---- Equation 95% Hazard = Coefficient Conf. (±) Std.Error P Exp(Coef.) Treatment numeric 0.97236485 1.81935207 0.92824667 0.29485592 2.6441902 Age 0.09701086 0.22328821 0.11392327 0.39446635 1.10187234 Survival table Cumulative Hazard Rate, Baseline at Covariate Mean Survival Probability, Cursive case Survival time Survival Probability Cumulative Hazard Rate 21 0.00030755 0.95108341 0.05015351 ---- 42 0.00069007 0.89356855 0.11253222 ---- 55 0.00110832 0.83465523 0.18073654 ---- 69 0.00161467 0.76850455 0.2633088 ---- 130 0.00288931 0.62427243 0.47116841 ---- 210 0.00392335 0.52740174 0.6397927 ----

#### Sample Results as an Excel Chart:

The curve displays the survival probabilites of an average individual ("at Mean"). Optionally, the survival curve of a specific individual with known input values ("Cursive case") may be displayed in contrast.