Cox Proportional Hazards Results - Survivor Function Tab

Select the Survivor Function tab of the Cox Proportional Hazards Results dialog box to access the options described here.

Element Name Element Type Description
Number of Covariate patterns To create custom survival and cumulative hazard curves for specific values of covariates, first decide how many covariate patterns you want, and enter that total here
Specify covariate values Once you have decided how many covariate patterns you want, click this button to specify those values in a user-defined input spreadsheet
Plot Creates a plot for each of the survival function(s) and cumulative hazard function(s) as specified by the user-defined covariate values
Summary Produces a spreadsheet of the survival function(s) and cumulative hazard function(s) as specified by the user defined covariate values
Survivor function This group box contains options for how the survivor function and confidence intervals are computed:
  • Survivor function: Select this check box to compute an estimate of the survival curve for each user defined covariate pattern
  • Estimator: This group box contains two options for how the survivor function is computed
  • Breslow: Select this option button to compute the survivor function using the Breslow method
  • Kaplan-Meier: Select this option button to compute the survivor function using the Kaplan-Meier method
  • Add confidence interval: Select this check box if you want to compute a confidence interval along with the survivor function
  • Type: This group box contains options for the method of how the confidence interval for the survivor function will be computed
  • Log: Select this option button to compute confidence intervals using the formula Log:

  • Normal: Select this option button to compute confidence intervals using the formula:

  • Log-Log: Select this option button to compute confidence intervals using the formula:

Cumulative Hazard function This group box contains the following two options:
  • Cumulative Hazard: Select this check box to compute an estimate of the cumulative hazard curve for each user defined covariate pattern
  • Add confidence interval: Select this check box if you want to compute a confidence interval along with the cumulative hazard function