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Mplus Users Guide v6.. - Muthén & Muthén

Mplus Users Guide v6.. - Muthén & Muthén

Mplus Users Guide v6.. - Muthén & Muthén

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TITLE, DATA, VARIABLE, And DEFINE Commandsname of the time-to-event variable the number sign (#) followed by anumber. For example, for a time-to-event variable t with 5 timeintervals, the six baseline hazard parameters are referred to as t#1, t#2,t#3, t#4, t#5, and t#6. With TYPE=MIXTURE andBASEHAZARD=OFF, the baseline hazard parameters are held equalacross classes as the default in line with Larsen (2004). This equalityconstraint can be relaxed using the UNEQUAL setting of theBASEHAZARD=OFF option. In addition to the baseline hazardparameters, the time-to-event variable has a mean or an interceptdepending on whether the model is unconditional or conditional. Themean or intercept is referred to by using a bracket statement, forexample,[t];where t is the time-to-event variable.TIMECENSOREDThe TIMECENSORED option is used in conjunction with theSURVIVAL option to identify the variables that contain informationabout right censoring, for example, when an individual leaves a study orwhen an individual has not experienced the event before the study ends.There must be the same number and order of variables in theTIMECENSORED option as there are in the SURVIVAL option. Thevariables that contain information about right censoring must be codedso that zero is not censored and one is right censored. If they are not,this can be specified as part of the TIMECENSORED option. TheTIMECENSORED option is specified as follows when the variable iscoded zero for not censored and one for right censored:TIMECENSORED = tc;The TIMECENSORED option is specified as follows when the variableis not coded zero for not censored and one for right censored:TIMECENSORED = tc (1 = NOT 999 = RIGHT);The value one is automatically recoded to zero and the value 999 isautomatically recoded to one.511

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