Tag Archives: change

Time-varying covariates III

Posted on January 21, 2011 by Vicki Bolton

A thought occurs.  Longitudinal data allows change to be studied within individuals was well as within populations.  This is ‘a good thing’.  You can look at whether a training programme affected an individual’s employment status, for example.  Or whether breakfast … Continue reading →

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Population projection – and it’s depressing

Posted on January 19, 2011 by Vicki Bolton

My take-home message from today was slightly depressing.  Sure, women do indeed live longer than men – but they live nearly all of those extra years with a disability.  Sigh…  I have a lingering interest in long-term care (for which … Continue reading →

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Time-varying covariates II

Posted on January 12, 2011 by Vicki Bolton

My division runs a reading group.  The subject is always methodological – this semester it’s a textbook on longitudinal data analysis (“Applied Longitudinal Data Analysis: Modeling Change and Event Occurrence” by Singer and Willett, for those who are interested).  The … Continue reading →

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Time-varying covariates

Posted on January 7, 2011 by Vicki Bolton

In an analysis of longitudinal data, you find variables which change over time (e.g. marital status) and those that do not (e.g. date of birth).  I was forced to think about the place of time-varying covariates in longitudinal data analysis … Continue reading →

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