Hi everyone.
I am planning to do an observational study in which it is intended to analyze the dispensation in pharmacies of a certain drug.
I will have access to the entire dispensing database for this drug, is it necessary to determine the sample size?
If calculation is not necessary, how should I mention in the study protocol that this calculation is not necessary?
I cannot find any bibliographic reference that can support this non-need.
Can anyone help me?
Thank you so much in advance
Adriana
I am planning to do an observational study in which it is intended to analyze the dispensation in pharmacies of a certain drug.
I will have access to the entire dispensing database for this drug, is it necessary to determine the sample size?
If calculation is not necessary, how should I mention in the study protocol that this calculation is not necessary?
I cannot find any bibliographic reference that can support this non-need.
Can anyone help me?
Thank you so much in advance
Adriana