Hi there,
I am currently modelling my first CEA (Markov-Model) with the three mutual exclusive health states progeressive-disease, progression-free-disease and Death. Unfortunately, there are no transition probabilities given.
But the trial data show figures for hazard ratios. Is there any way to derive the transition probabilities from this hazard ratios.
Thanks in advance.
Kind regards
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Edit: I have those information given in a HTA-report, it is a log-logistic function of the baseline intervention and also the hazard ratios of the comparator interventions.
The kaplan Meier curves and the patient-individual data are also published.
The model-inputs and structure is described on p.63-65. I dont need to extrapolate the trial data to a certain time horizont. It would be enough for me to model within the given time horizon of the trial.
https://nyemetoder.no/Documents/Rapporter/Rapport_2015_Malignt_melanom.pdf
Can anyone help me? They follow the formula described by Briggs et al (2007).
Is it possible to simply adjust the baseline transition probabilities by exp with the hazard ratio?
kind regards