If you don't have treatment switching, as in the above example where patients shift from the antibiotic treatment to surgery after some time, the easiest way to eliminate immortal time bias would be to considers the time point of treatment decision as baseline for all comparisons.
Thank you for the slides, explained better than ChatGPT did. How do you deal w immortal time bias if the treatments are exclusive, though (i.e. for whatever reason, the surgery candidates cannot take antibiotics)?
If you don't have treatment switching, as in the above example where patients shift from the antibiotic treatment to surgery after some time, the easiest way to eliminate immortal time bias would be to considers the time point of treatment decision as baseline for all comparisons.
Thank you for the slides, explained better than ChatGPT did. How do you deal w immortal time bias if the treatments are exclusive, though (i.e. for whatever reason, the surgery candidates cannot take antibiotics)?
wonderfully explained.. thank you
Fantastic explanation