Hello,

When you want to investigate exacerbations (outcome of interest) in asthma, you can measure:

1) the incidence rate in the last year (i.e. mean numbers of exacerbations in the last year in your total population);

2) the frequency of patients reporting one exacerbation in the last year;

3) the time-to-1st-exacerbation within the last year.

So you have 3 different endpoints to explore the same outcome.

Could you please help me in finding the technical term to define this property of the outcome? E.g. Multiple outcome, multivariate outcome, multi-faceted, multivalent, manifold...

Thank you!

Matteo