------------------------------------------------------------------------------------------------ log: C:\WDDtext\log\6.16.Hemorrhage.log log type: text opened on: 13 Jul 2001, 09:48:52 . * 6.16.Hemorrhage.log . * . * Perform a proportional hazards regression analysis of recurrent lobar . * intracerebral hemorrhage in patients who are, or are not, homozygous for . * the epsilon3 allele of the apoliprotein E gene (O'Donnell et al. 2000). . * . use C:\WDDtext\6.9.Hemorrhage.dta, clear . stset time, failure(recur) failure event: recur ~= 0 & recur ~= . obs. time interval: (0, time] exit on or before: failure ------------------------------------------------------------------------------ 71 total obs. 0 exclusions ------------------------------------------------------------------------------ 71 obs. remaining, representing 19 failures in single record/single failure data 1597.536 total analysis time at risk, at risk from t = 0 earliest observed entry t = 0 last observed exit t = 53.88091 . stcox genotype failure _d: recur analysis time _t: time Iteration 0: log likelihood = -66.674866 Iteration 1: log likelihood = -63.40237 Iteration 2: log likelihood = -63.370991 Iteration 3: log likelihood = -63.370953 Refining estimates: Iteration 0: log likelihood = -63.370953 Cox regression -- no ties No. of subjects = 70 Number of obs = 70 No. of failures = 18 Time at risk = 1596.320341 LR chi2(1) = 6.61 Log likelihood = -63.370953 Prob > chi2 = 0.0102 ------------------------------------------------------------------------------ _t | _d | Haz. Ratio Std. Err. z P>|z| [95% Conf. Interval] -------------+---------------------------------------------------------------- genotype | 3.787366 2.158422 2.34 0.019 1.239473 11.57278 ------------------------------------------------------------------------------ . log close log: C:\WDDtext\log\6.16.Hemorrhage.log log type: text closed on: 13 Jul 2001, 09:48:52 ----------------------------------------------------------------------------------------------