COXREG

COXREG is available in the Advanced Statistics option.

COXREG applies Cox proportional hazards regression to analysis of survival times—that is, the length of time before the occurrence of an event.

COXREG VARIABLES = survival varname [WITH varlist]
    / STATUS = varname [EVENT] (vallist) [LOST (vallist)]
   [/STRATA  = varname]
   [/CATEGORICAL = varname]
   [/CONTRAST (varname) = {DEVIATION (refcat)}]
                          {SIMPLE (refcat)   }
                          {DIFFERENCE        }
                          {HELMERT           }
                          {REPEATED          }
                          {POLYNOMIAL(metric)}
                          {SPECIAL (matrix)  }
                          {INDICATOR (refcat)}

   [/METHOD = {ENTER**      }   [{varlist}]]
              {BSTEP [{COND}]}    {ALL    }
                      {LR  }
                      {WALD}
              {FSTEP [{COND}]} 
                      {LR  }
                      {WALD}

   [/MISSING = {EXCLUDE**}]
               {INCLUDE  }

   [/PRINT = [{DEFAULT**}]  [CI ({95})]]
              {SUMMARY  }        {n }
              {BASELINE }
              {CORR     }
              {ALL      }

   [/CRITERIA = [{BCON}({1E-4**})]   [LCON({1E-5**})]
                 {PCON} { n    }           { n    }
                [ITERATE({20**})]
                         { n  }
                [PIN({0.05**})]      [POUT({0.1**})]]
                     { n    }              { n   }

   [/PLOT = [NONE**] [SURVIVAL] [HAZARD] [LML] [OMS]]
   [/PATTERN = [varname(value)...] [BY varname]]
   [/OUTFILE = [COEFF('savfile' | 'dataset')] [TABLE('savfile' | 'dataset')]
               [PARAMETER('file')]]
   [/SAVE = tempvar [(newvarname)],tempvar ...]
   [/EXTERNAL]

**Default if subcommand or keyword is omitted.

Temporary variables created by COXREG are:

• SURVIVAL
• SE
• HAZARD
• RESID
• LML
• DFBETA
• PRESID
• XBETA

This command reads the active dataset and causes execution of any pending commands. See the topic Command Order for more information.

Syntax for the COXREG command can be generated from the Cox Regression Analysis dialog box.

Example

TIME PROGRAM.
COMPUTE Z=AGE + T_.

COXREG SURVIVAL WITH Z
  /STATUS SURVSTA EVENT(1).