Mplus Users Guide v6.. - Muthén & Muthén

CHAPTER 7MODEL:OUTPUT:PLOT:%OVERALL%t ON x;%c#1%[u$1@15];[t@0];%c#2%[u$1@-15];[t];TECH1 LOGRANK;TYPE = PLOT2;utcxIn this example, the continuous-time survival analysis model shown inthe picture above is estimated. The model is similar to Larsen (2004). Atreatment and a control group are analyzed as two known latent classes.The baseline hazards are held equal across the classes and the treatmenteffect is expressed as the intercept of the survival variable in thetreatment group. For applications of this model, see Muthén et al.(2009).The CATEGORICAL option is used to specify that the variable u is abinary variable. This variable is a treatment dummy variable where zerorepresents the control group and one represents the treatment group. Inthis example, the categorical latent variable c has two classes. In theMODEL command, in the model for class 1, the threshold for u is fixedat 15 so that the probability that u equals one is zero. By this194